./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer --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 18edad3aefc49839189b8c997aba3dd32264f7ca ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:52:39,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:39,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:39,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:39,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:39,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:39,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:39,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:39,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:39,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:39,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:39,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:39,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:39,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:39,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:39,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:39,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:39,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:39,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:39,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:39,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:39,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:39,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:39,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:39,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:39,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:39,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:39,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:39,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:39,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:39,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:39,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:39,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:39,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:39,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:39,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:39,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:39,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:39,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:39,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:39,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:39,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:52:39,403 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:39,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:39,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:39,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:39,414 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:39,415 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:52:39,415 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:52:39,415 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:52:39,415 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:52:39,415 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:52:39,416 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:52:39,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:39,416 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:52:39,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:39,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:39,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:52:39,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:52:39,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:52:39,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:52:39,417 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:52:39,418 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:39,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:52:39,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:39,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:39,419 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:52:39,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:39,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:52:39,420 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:52:39,421 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:52:39,421 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer 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 -> 18edad3aefc49839189b8c997aba3dd32264f7ca [2019-11-25 08:52:39,590 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:39,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:39,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:39,608 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:39,610 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:39,611 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2019-11-25 08:52:39,670 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/data/294c97de8/9059c24972104c479586dad43bd33101/FLAGfbb85b637 [2019-11-25 08:52:40,127 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:40,128 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2019-11-25 08:52:40,142 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/data/294c97de8/9059c24972104c479586dad43bd33101/FLAGfbb85b637 [2019-11-25 08:52:40,468 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/data/294c97de8/9059c24972104c479586dad43bd33101 [2019-11-25 08:52:40,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:40,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:52:40,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:40,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:40,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:40,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:40" (1/1) ... [2019-11-25 08:52:40,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6821cb8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:40, skipping insertion in model container [2019-11-25 08:52:40,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:40" (1/1) ... [2019-11-25 08:52:40,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:40,538 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:40,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:40,910 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:40,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:41,013 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:41,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41 WrapperNode [2019-11-25 08:52:41,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:41,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:41,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:52:41,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:52:41,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:41,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:41,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:41,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:41,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... [2019-11-25 08:52:41,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:41,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:41,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:41,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:41,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure new_ll [2019-11-25 08:52:41,186 INFO L138 BoogieDeclarations]: Found implementation of procedure new_ll [2019-11-25 08:52:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:52:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:52:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:52:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-25 08:52:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure length [2019-11-25 08:52:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure length [2019-11-25 08:52:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:41,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:41,561 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:41,562 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-25 08:52:41,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:41 BoogieIcfgContainer [2019-11-25 08:52:41,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:41,564 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:52:41,564 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:52:41,567 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:52:41,568 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:52:41,568 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:52:40" (1/3) ... [2019-11-25 08:52:41,569 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@422ae4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:52:41, skipping insertion in model container [2019-11-25 08:52:41,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:52:41,569 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:41" (2/3) ... [2019-11-25 08:52:41,570 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@422ae4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:52:41, skipping insertion in model container [2019-11-25 08:52:41,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:52:41,570 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:41" (3/3) ... [2019-11-25 08:52:41,572 INFO L371 chiAutomizerObserver]: Analyzing ICFG ll_append-alloca-2.i [2019-11-25 08:52:41,611 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:52:41,611 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:52:41,611 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:52:41,611 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:41,611 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:41,612 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:52:41,612 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:41,612 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:52:41,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2019-11-25 08:52:41,660 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-25 08:52:41,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:52:41,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:52:41,672 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-25 08:52:41,672 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:52:41,673 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:52:41,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2019-11-25 08:52:41,679 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-25 08:52:41,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:52:41,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:52:41,680 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-25 08:52:41,680 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:52:41,687 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 12#L574true assume !(main_~n~0 < 1); 7#L577true call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 15#new_llENTRYtrue [2019-11-25 08:52:41,688 INFO L796 eck$LassoCheckResult]: Loop: 15#new_llENTRYtrue ~n := #in~n; 29#L548true assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 22#L552true call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 15#new_llENTRYtrue [2019-11-25 08:52:41,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:41,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1418244, now seen corresponding path program 1 times [2019-11-25 08:52:41,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:41,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713899211] [2019-11-25 08:52:41,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:41,845 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:41,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:41,848 INFO L82 PathProgramCache]: Analyzing trace with hash 29967, now seen corresponding path program 1 times [2019-11-25 08:52:41,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:41,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51967707] [2019-11-25 08:52:41,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:41,925 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:41,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:41,930 INFO L82 PathProgramCache]: Analyzing trace with hash -698765780, now seen corresponding path program 1 times [2019-11-25 08:52:41,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:41,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291864727] [2019-11-25 08:52:41,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:41,992 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:42,314 WARN L192 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-11-25 08:52:42,573 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-11-25 08:52:42,842 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:52:42,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:52:42,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:52:42,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:52:42,843 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:52:42,843 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:42,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:52:42,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:52:42,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: ll_append-alloca-2.i_Iteration1_Lasso [2019-11-25 08:52:42,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:52:42,845 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:52:42,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:42,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:52:43,338 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:52:43,343 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:52:43,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,363 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:52:43,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,382 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:52:43,395 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,401 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:52:43,411 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,418 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:52:43,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,437 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:52:43,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:52:43,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,481 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:52:43,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:52:43,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:52:43,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,536 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:52:43,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:52:43,554 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:52:43,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,577 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:52:43,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:52:43,615 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:52:43,626 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:52:43,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:52:43,649 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:52:43,659 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:52:43,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,678 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:52:43,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:52:43,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:52:43,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:52:43,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:52:43,697 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:52:43,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:52:43,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:52:43,706 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-25 08:52:43,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:52:43,718 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-25 08:52:43,718 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-25 08:52:43,736 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:52:43,758 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-25 08:52:43,758 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:52:43,890 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:52:43,897 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-11-25 08:52:43,898 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:52:43,899 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(new_ll_#in~n) = 1*new_ll_#in~n Supporting invariants [1*new_ll_#in~n >= 0] [2019-11-25 08:52:43,913 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-25 08:52:43,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:43,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:52:43,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:44,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:52:44,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:44,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:44,080 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 [2019-11-25 08:52:44,082 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states. Second operand 5 states. [2019-11-25 08:52:44,247 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states.. Second operand 5 states. Result 45 states and 54 transitions. Complement of second has 13 states. [2019-11-25 08:52:44,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:52:44,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-25 08:52:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2019-11-25 08:52:44,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-25 08:52:44,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:52:44,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-25 08:52:44,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:52:44,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2019-11-25 08:52:44,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:52:44,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 54 transitions. [2019-11-25 08:52:44,258 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-25 08:52:44,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 29 states and 37 transitions. [2019-11-25 08:52:44,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-11-25 08:52:44,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2019-11-25 08:52:44,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2019-11-25 08:52:44,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:52:44,268 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 37 transitions. [2019-11-25 08:52:44,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2019-11-25 08:52:44,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-11-25 08:52:44,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-25 08:52:44,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-11-25 08:52:44,309 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-25 08:52:44,309 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-25 08:52:44,309 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:52:44,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2019-11-25 08:52:44,312 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-25 08:52:44,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:52:44,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:52:44,313 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:44,314 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:52:44,314 INFO L794 eck$LassoCheckResult]: Stem: 160#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 158#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 159#L574 assume !(main_~n~0 < 1); 141#L577 call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 151#new_llENTRY ~n := #in~n; 163#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 140#new_llFINAL assume true; 142#new_llEXIT >#57#return; 153#L577-1 main_~x~0.base, main_~x~0.offset := main_#t~ret9.base, main_#t~ret9.offset;havoc main_#t~ret9.base, main_#t~ret9.offset;append_#in~x.base, append_#in~x.offset, append_#in~y.base, append_#in~y.offset := main_~x~0.base, main_~x~0.offset, main_~x~0.base, main_~x~0.offset;havoc append_#res.base, append_#res.offset;havoc append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem6.base, append_#t~mem6.offset, append_~x.base, append_~x.offset, append_~y.base, append_~y.offset, append_~s~0.base, append_~s~0.offset;append_~x.base, append_~x.offset := append_#in~x.base, append_#in~x.offset;append_~y.base, append_~y.offset := append_#in~y.base, append_#in~y.offset; 154#L563 assume !(append_~x.base == 0 && append_~x.offset == 0);append_~s~0.base, append_~s~0.offset := append_~x.base, append_~x.offset; 157#L566-3 [2019-11-25 08:52:44,314 INFO L796 eck$LassoCheckResult]: Loop: 157#L566-3 call append_#t~mem6.base, append_#t~mem6.offset := read~$Pointer$(append_~x.base, 4 + append_~x.offset, 8); 155#L566-1 assume !!(append_#t~mem6.base != 0 || append_#t~mem6.offset != 0);havoc append_#t~mem6.base, append_#t~mem6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~x.base, 4 + append_~x.offset, 8);append_~x.base, append_~x.offset := append_#t~mem7.base, append_#t~mem7.offset;havoc append_#t~mem7.base, append_#t~mem7.offset; 157#L566-3 [2019-11-25 08:52:44,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:44,315 INFO L82 PathProgramCache]: Analyzing trace with hash 772923198, now seen corresponding path program 1 times [2019-11-25 08:52:44,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:44,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209366011] [2019-11-25 08:52:44,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:44,436 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209366011] [2019-11-25 08:52:44,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:44,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:52:44,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391763982] [2019-11-25 08:52:44,440 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:52:44,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:44,440 INFO L82 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 1 times [2019-11-25 08:52:44,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:44,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769131853] [2019-11-25 08:52:44,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:44,449 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:44,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:44,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:52:44,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:52:44,512 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 6 states. [2019-11-25 08:52:44,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:44,615 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2019-11-25 08:52:44,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:44,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2019-11-25 08:52:44,618 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-25 08:52:44,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 24 states and 28 transitions. [2019-11-25 08:52:44,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2019-11-25 08:52:44,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2019-11-25 08:52:44,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2019-11-25 08:52:44,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:52:44,619 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-11-25 08:52:44,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2019-11-25 08:52:44,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-25 08:52:44,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-25 08:52:44,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-11-25 08:52:44,624 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-11-25 08:52:44,624 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-11-25 08:52:44,624 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:52:44,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2019-11-25 08:52:44,627 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-25 08:52:44,628 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:52:44,628 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:52:44,629 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:44,629 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:52:44,629 INFO L794 eck$LassoCheckResult]: Stem: 231#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 229#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 230#L574 assume !(main_~n~0 < 1); 220#L577 call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 222#new_llENTRY ~n := #in~n; 232#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 212#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 223#new_llENTRY ~n := #in~n; 233#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 211#new_llFINAL assume true; 213#new_llEXIT >#53#return; 219#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 221#new_llFINAL assume true; 234#new_llEXIT >#57#return; 224#L577-1 main_~x~0.base, main_~x~0.offset := main_#t~ret9.base, main_#t~ret9.offset;havoc main_#t~ret9.base, main_#t~ret9.offset;append_#in~x.base, append_#in~x.offset, append_#in~y.base, append_#in~y.offset := main_~x~0.base, main_~x~0.offset, main_~x~0.base, main_~x~0.offset;havoc append_#res.base, append_#res.offset;havoc append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem6.base, append_#t~mem6.offset, append_~x.base, append_~x.offset, append_~y.base, append_~y.offset, append_~s~0.base, append_~s~0.offset;append_~x.base, append_~x.offset := append_#in~x.base, append_#in~x.offset;append_~y.base, append_~y.offset := append_#in~y.base, append_#in~y.offset; 225#L563 assume !(append_~x.base == 0 && append_~x.offset == 0);append_~s~0.base, append_~s~0.offset := append_~x.base, append_~x.offset; 228#L566-3 [2019-11-25 08:52:44,629 INFO L796 eck$LassoCheckResult]: Loop: 228#L566-3 call append_#t~mem6.base, append_#t~mem6.offset := read~$Pointer$(append_~x.base, 4 + append_~x.offset, 8); 226#L566-1 assume !!(append_#t~mem6.base != 0 || append_#t~mem6.offset != 0);havoc append_#t~mem6.base, append_#t~mem6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~x.base, 4 + append_~x.offset, 8);append_~x.base, append_~x.offset := append_#t~mem7.base, append_#t~mem7.offset;havoc append_#t~mem7.base, append_#t~mem7.offset; 228#L566-3 [2019-11-25 08:52:44,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:44,630 INFO L82 PathProgramCache]: Analyzing trace with hash 704779872, now seen corresponding path program 1 times [2019-11-25 08:52:44,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:44,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414901439] [2019-11-25 08:52:44,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:44,667 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:44,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:44,668 INFO L82 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 2 times [2019-11-25 08:52:44,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:44,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153537833] [2019-11-25 08:52:44,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:44,679 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:44,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:44,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1311374651, now seen corresponding path program 1 times [2019-11-25 08:52:44,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:44,681 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362413466] [2019-11-25 08:52:44,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:44,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:52:44,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362413466] [2019-11-25 08:52:44,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017776219] [2019-11-25 08:52:44,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:45,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 46 conjunts are in the unsatisfiable core [2019-11-25 08:52:45,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:45,041 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:52:45,041 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:45,051 INFO L567 ElimStorePlain]: treesize reduction 3, result has 75.0 percent of original size [2019-11-25 08:52:45,051 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:45,052 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-11-25 08:52:45,140 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-25 08:52:45,141 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:45,156 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:45,161 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-25 08:52:45,161 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:45,168 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:45,172 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-25 08:52:45,172 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:45,178 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:45,178 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:45,179 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:36, output treesize:18 [2019-11-25 08:52:45,197 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-25 08:52:45,198 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:45,204 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:45,207 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-25 08:52:45,208 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:45,213 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:45,213 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:45,213 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2019-11-25 08:52:45,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:45,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:52:45,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-25 08:52:45,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384658131] [2019-11-25 08:52:45,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:45,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-25 08:52:45,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-25 08:52:45,301 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. cyclomatic complexity: 7 Second operand 15 states. [2019-11-25 08:52:45,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:45,572 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2019-11-25 08:52:45,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-25 08:52:45,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2019-11-25 08:52:45,574 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-25 08:52:45,575 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 40 transitions. [2019-11-25 08:52:45,576 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2019-11-25 08:52:45,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2019-11-25 08:52:45,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 40 transitions. [2019-11-25 08:52:45,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:52:45,576 INFO L688 BuchiCegarLoop]: Abstraction has 34 states and 40 transitions. [2019-11-25 08:52:45,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 40 transitions. [2019-11-25 08:52:45,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2019-11-25 08:52:45,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-25 08:52:45,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2019-11-25 08:52:45,580 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2019-11-25 08:52:45,580 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2019-11-25 08:52:45,580 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:52:45,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2019-11-25 08:52:45,581 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-25 08:52:45,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:52:45,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:52:45,584 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:45,584 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:52:45,584 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 376#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 377#L574 assume !(main_~n~0 < 1); 362#L577 call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 370#new_llENTRY ~n := #in~n; 382#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 361#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 371#new_llENTRY ~n := #in~n; 383#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 384#new_llFINAL assume true; 381#new_llEXIT >#53#return; 369#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 360#new_llFINAL assume true; 363#new_llEXIT >#57#return; 387#L577-1 main_~x~0.base, main_~x~0.offset := main_#t~ret9.base, main_#t~ret9.offset;havoc main_#t~ret9.base, main_#t~ret9.offset;append_#in~x.base, append_#in~x.offset, append_#in~y.base, append_#in~y.offset := main_~x~0.base, main_~x~0.offset, main_~x~0.base, main_~x~0.offset;havoc append_#res.base, append_#res.offset;havoc append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem6.base, append_#t~mem6.offset, append_~x.base, append_~x.offset, append_~y.base, append_~y.offset, append_~s~0.base, append_~s~0.offset;append_~x.base, append_~x.offset := append_#in~x.base, append_#in~x.offset;append_~y.base, append_~y.offset := append_#in~y.base, append_#in~y.offset; 386#L563 assume append_~x.base == 0 && append_~x.offset == 0;append_#res.base, append_#res.offset := append_~y.base, append_~y.offset; 368#L569 main_#t~ret10.base, main_#t~ret10.offset := append_#res.base, append_#res.offset;main_~y~0.base, main_~y~0.offset := main_#t~ret10.base, main_#t~ret10.offset;havoc main_#t~ret10.base, main_#t~ret10.offset; 365#L579 call main_#t~ret11 := length(main_~y~0.base, main_~y~0.offset);< 364#lengthENTRY [2019-11-25 08:52:45,585 INFO L796 eck$LassoCheckResult]: Loop: 364#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 367#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 366#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 364#lengthENTRY [2019-11-25 08:52:45,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:45,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1311376214, now seen corresponding path program 1 times [2019-11-25 08:52:45,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:45,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319959184] [2019-11-25 08:52:45,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:52:45,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319959184] [2019-11-25 08:52:45,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:45,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:52:45,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848865592] [2019-11-25 08:52:45,691 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:52:45,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:45,692 INFO L82 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 1 times [2019-11-25 08:52:45,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:45,692 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957387776] [2019-11-25 08:52:45,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:45,700 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:45,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:45,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:45,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:45,840 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand 7 states. [2019-11-25 08:52:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:45,939 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2019-11-25 08:52:45,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:45,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2019-11-25 08:52:45,942 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-25 08:52:45,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 41 transitions. [2019-11-25 08:52:45,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-11-25 08:52:45,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2019-11-25 08:52:45,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 41 transitions. [2019-11-25 08:52:45,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:52:45,945 INFO L688 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2019-11-25 08:52:45,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 41 transitions. [2019-11-25 08:52:45,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2019-11-25 08:52:45,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-25 08:52:45,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-11-25 08:52:45,950 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-11-25 08:52:45,950 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-11-25 08:52:45,950 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-25 08:52:45,950 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 35 transitions. [2019-11-25 08:52:45,951 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-25 08:52:45,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:52:45,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:52:45,952 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:45,952 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:52:45,953 INFO L794 eck$LassoCheckResult]: Stem: 474#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 470#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 471#L574 assume !(main_~n~0 < 1); 456#L577 call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 464#new_llENTRY ~n := #in~n; 478#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 455#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 465#new_llENTRY ~n := #in~n; 479#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 480#new_llFINAL assume true; 476#new_llEXIT >#53#return; 477#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 484#new_llFINAL assume true; 481#new_llEXIT >#57#return; 466#L577-1 main_~x~0.base, main_~x~0.offset := main_#t~ret9.base, main_#t~ret9.offset;havoc main_#t~ret9.base, main_#t~ret9.offset;append_#in~x.base, append_#in~x.offset, append_#in~y.base, append_#in~y.offset := main_~x~0.base, main_~x~0.offset, main_~x~0.base, main_~x~0.offset;havoc append_#res.base, append_#res.offset;havoc append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem6.base, append_#t~mem6.offset, append_~x.base, append_~x.offset, append_~y.base, append_~y.offset, append_~s~0.base, append_~s~0.offset;append_~x.base, append_~x.offset := append_#in~x.base, append_#in~x.offset;append_~y.base, append_~y.offset := append_#in~y.base, append_#in~y.offset; 467#L563 assume !(append_~x.base == 0 && append_~x.offset == 0);append_~s~0.base, append_~s~0.offset := append_~x.base, append_~x.offset; 482#L566-3 call append_#t~mem6.base, append_#t~mem6.offset := read~$Pointer$(append_~x.base, 4 + append_~x.offset, 8); 468#L566-1 assume !(append_#t~mem6.base != 0 || append_#t~mem6.offset != 0);havoc append_#t~mem6.base, append_#t~mem6.offset; 469#L566-4 call write~$Pointer$(append_~y.base, append_~y.offset, append_~x.base, 4 + append_~x.offset, 8);append_#res.base, append_#res.offset := append_~s~0.base, append_~s~0.offset; 462#L569 main_#t~ret10.base, main_#t~ret10.offset := append_#res.base, append_#res.offset;main_~y~0.base, main_~y~0.offset := main_#t~ret10.base, main_#t~ret10.offset;havoc main_#t~ret10.base, main_#t~ret10.offset; 459#L579 call main_#t~ret11 := length(main_~y~0.base, main_~y~0.offset);< 458#lengthENTRY [2019-11-25 08:52:45,953 INFO L796 eck$LassoCheckResult]: Loop: 458#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 461#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 460#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 458#lengthENTRY [2019-11-25 08:52:45,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:45,953 INFO L82 PathProgramCache]: Analyzing trace with hash -139719339, now seen corresponding path program 1 times [2019-11-25 08:52:45,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:45,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779801568] [2019-11-25 08:52:45,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:45,985 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:45,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:45,986 INFO L82 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 2 times [2019-11-25 08:52:45,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:45,986 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383631604] [2019-11-25 08:52:45,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:45,995 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:45,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:45,995 INFO L82 PathProgramCache]: Analyzing trace with hash -555510211, now seen corresponding path program 1 times [2019-11-25 08:52:45,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:45,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508369640] [2019-11-25 08:52:45,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:46,061 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:46,743 WARN L192 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2019-11-25 08:52:46,758 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:46,817 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:46,824 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:46,872 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:46,873 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:46,873 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:131, output treesize:107 [2019-11-25 08:52:47,045 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-11-25 08:52:47,779 WARN L192 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 149 [2019-11-25 08:52:47,805 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:47,920 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-25 08:52:47,921 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:47,922 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:47,922 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:220, output treesize:224 [2019-11-25 08:52:48,037 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-25 08:52:48,193 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-25 08:52:48,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:52:48 BoogieIcfgContainer [2019-11-25 08:52:48,281 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:52:48,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:52:48,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:52:48,282 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:52:48,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:41" (3/4) ... [2019-11-25 08:52:48,286 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:52:48,350 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dc888031-4225-4228-9ea1-4ed7f990915d/bin/uautomizer/witness.graphml [2019-11-25 08:52:48,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:52:48,352 INFO L168 Benchmark]: Toolchain (without parser) took 7879.74 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 272.1 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -207.9 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:48,352 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:48,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -137.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:48,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:48,355 INFO L168 Benchmark]: Boogie Preprocessor took 62.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:48,356 INFO L168 Benchmark]: RCFGBuilder took 441.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:48,356 INFO L168 Benchmark]: BuchiAutomizer took 6717.29 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 170.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -112.2 MB). Peak memory consumption was 410.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:48,357 INFO L168 Benchmark]: Witness Printer took 68.76 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:48,359 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 538.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -137.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 441.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6717.29 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 170.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -112.2 MB). Peak memory consumption was 410.5 MB. Max. memory is 11.5 GB. * Witness Printer took 68.76 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function \old(n) and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. The remainder module has 31 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 5.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 61 SDtfs, 58 SDslu, 209 SDs, 0 SdLazy, 237 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU2 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital136 mio100 ax100 hnf100 lsp95 ukn27 mio100 lsp38 div100 bol100 ite100 ukn100 eq214 hnf86 smp100 dnf130 smp100 tf100 neg94 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 198ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 555]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {x=0, x=0, y_length=0, NULL=0, y=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@75d5cdce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@416441bf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@78b09f60=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@78b09f60=0, s=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@204609ef=0, xs=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f8eb2b7=0, NULL=0, y=0, y=0, \result=0, x=0, y=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b227dfb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c3fbe1f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c3fbe1f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@416441bf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59494c16=0, x=0, y=0, n=0, NULL=0, y=0, xs=-1, \result=0, \result=0, NULL=0, xs=0, xs=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@204609ef=0, s=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@75d5cdce=0, x=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 555]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L573] int n = __VERIFIER_nondet_int(); [L574] COND FALSE !(n < 1) [L577] CALL, EXPR new_ll(n) [L548] COND FALSE !(n == 0) [L550] node_t* head = malloc(sizeof(node_t)); [L551] head->val = n [L552] CALL, EXPR new_ll(n-1) [L548] COND TRUE n == 0 [L549] return ((void *)0); [L552] RET, EXPR new_ll(n-1) [L552] head->next = new_ll(n-1) [L553] return head; [L577] RET, EXPR new_ll(n) [L577] node_t* x = new_ll(n); [L563] COND FALSE !(x == ((void *)0)) [L565] node_t* s = x; [L566] EXPR x->next [L566] COND FALSE !(x->next != ((void *)0)) [L568] x->next = y [L569] return s; [L578] node_t* y = append(x, x); [L579] CALL length(y) Loop: [L557] COND FALSE !(xs == ((void *)0)) [L559] EXPR xs->next [L559] CALL length(xs->next) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...