./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/cll_search-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/cll_search-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 34137da927ca86d2fb49adf8270ebc903b8c1dbe ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:38:47,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:38:47,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:38:47,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:38:47,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:38:47,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:38:47,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:38:47,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:38:47,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:38:47,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:38:47,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:38:47,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:38:47,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:38:47,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:38:47,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:38:47,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:38:47,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:38:47,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:38:47,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:38:47,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:38:47,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:38:47,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:38:47,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:38:47,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:38:47,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:38:47,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:38:47,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:38:47,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:38:47,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:38:47,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:38:47,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:38:47,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:38:47,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:38:47,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:38:47,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:38:47,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:38:47,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:38:47,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:38:47,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:38:47,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:38:47,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:38:47,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 19:38:47,803 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:38:47,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:38:47,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:38:47,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:38:47,808 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:38:47,808 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:38:47,809 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:38:47,809 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:38:47,809 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:38:47,810 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:38:47,812 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:38:47,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:38:47,813 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:38:47,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:38:47,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:38:47,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:38:47,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:38:47,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:38:47,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:38:47,815 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:38:47,816 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:38:47,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:38:47,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:38:47,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:38:47,817 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:38:47,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:38:47,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:38:47,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:38:47,819 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:38:47,822 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:38:47,822 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34137da927ca86d2fb49adf8270ebc903b8c1dbe [2020-11-29 19:38:48,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:38:48,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:38:48,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:38:48,319 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:38:48,320 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:38:48,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/../../sv-benchmarks/c/termination-memory-linkedlists/cll_search-alloca-2.i [2020-11-29 19:38:48,434 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/data/05120472f/f717ab8c5efd4424b31e6e3471515133/FLAG4d5a4f7a3 [2020-11-29 19:38:49,474 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:38:49,475 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/sv-benchmarks/c/termination-memory-linkedlists/cll_search-alloca-2.i [2020-11-29 19:38:49,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/data/05120472f/f717ab8c5efd4424b31e6e3471515133/FLAG4d5a4f7a3 [2020-11-29 19:38:49,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/data/05120472f/f717ab8c5efd4424b31e6e3471515133 [2020-11-29 19:38:49,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:38:49,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:38:49,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:38:49,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:38:49,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:38:49,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:38:49" (1/1) ... [2020-11-29 19:38:49,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1f9485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:49, skipping insertion in model container [2020-11-29 19:38:49,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:38:49" (1/1) ... [2020-11-29 19:38:49,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:38:49,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:38:50,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:38:50,281 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:38:50,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:38:50,480 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:38:50,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50 WrapperNode [2020-11-29 19:38:50,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:38:50,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:38:50,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:38:50,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:38:50,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50" (1/1) ... [2020-11-29 19:38:50,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50" (1/1) ... [2020-11-29 19:38:50,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:38:50,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:38:50,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:38:50,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:38:50,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50" (1/1) ... [2020-11-29 19:38:50,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50" (1/1) ... [2020-11-29 19:38:50,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50" (1/1) ... [2020-11-29 19:38:50,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50" (1/1) ... [2020-11-29 19:38:50,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50" (1/1) ... [2020-11-29 19:38:50,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50" (1/1) ... [2020-11-29 19:38:50,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50" (1/1) ... [2020-11-29 19:38:50,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:38:50,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:38:50,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:38:50,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:38:50,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 [2020-11-29 19:38:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:38:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:38:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 19:38:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 19:38:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 19:38:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:38:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:38:51,524 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:38:51,526 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-29 19:38:51,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:51 BoogieIcfgContainer [2020-11-29 19:38:51,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:38:51,532 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:38:51,532 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:38:51,538 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:38:51,540 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:38:51,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:38:49" (1/3) ... [2020-11-29 19:38:51,543 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a6279bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:38:51, skipping insertion in model container [2020-11-29 19:38:51,543 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:38:51,544 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:50" (2/3) ... [2020-11-29 19:38:51,545 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a6279bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:38:51, skipping insertion in model container [2020-11-29 19:38:51,545 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:38:51,545 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:51" (3/3) ... [2020-11-29 19:38:51,550 INFO L373 chiAutomizerObserver]: Analyzing ICFG cll_search-alloca-2.i [2020-11-29 19:38:51,655 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:38:51,655 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:38:51,656 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:38:51,656 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:38:51,656 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:38:51,657 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:38:51,657 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:38:51,657 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:38:51,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-11-29 19:38:51,718 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 19:38:51,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:38:51,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:38:51,730 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:38:51,730 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:38:51,730 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:38:51,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-11-29 19:38:51,736 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 19:38:51,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:38:51,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:38:51,738 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:38:51,738 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:38:51,750 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_#t~nondet9, main_~n~0, main_~head~1.base, main_~head~1.offset;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7;init_cll_#in~n := main_~n~0;havoc init_cll_#res.base, init_cll_#res.offset;havoc init_cll_#t~malloc2.base, init_cll_#t~malloc2.offset, init_cll_#t~malloc4.base, init_cll_#t~malloc4.offset, init_cll_#t~post3, init_cll_~i~0, init_cll_~next_node~0.base, init_cll_~next_node~0.offset, init_cll_~n, init_cll_~head~0.base, init_cll_~head~0.offset, init_cll_~curr~0.base, init_cll_~curr~0.offset;init_cll_~n := init_cll_#in~n;havoc init_cll_~head~0.base, init_cll_~head~0.offset;call init_cll_#t~malloc2.base, init_cll_#t~malloc2.offset := #Ultimate.allocOnHeap(12);init_cll_~curr~0.base, init_cll_~curr~0.offset := init_cll_#t~malloc2.base, init_cll_#t~malloc2.offset;call write~int(0, init_cll_~curr~0.base, init_cll_~curr~0.offset, 4);init_cll_~head~0.base, init_cll_~head~0.offset := init_cll_~curr~0.base, init_cll_~curr~0.offset;init_cll_~i~0 := 1; 13#L552-3true [2020-11-29 19:38:51,751 INFO L796 eck$LassoCheckResult]: Loop: 13#L552-3true assume !!(init_cll_~i~0 < init_cll_~n);call init_cll_#t~malloc4.base, init_cll_#t~malloc4.offset := #Ultimate.allocOnHeap(12);init_cll_~next_node~0.base, init_cll_~next_node~0.offset := init_cll_#t~malloc4.base, init_cll_#t~malloc4.offset;call write~int(init_cll_~i~0, init_cll_~next_node~0.base, init_cll_~next_node~0.offset, 4);call write~$Pointer$(init_cll_~next_node~0.base, init_cll_~next_node~0.offset, init_cll_~curr~0.base, 4 + init_cll_~curr~0.offset, 8);init_cll_~curr~0.base, init_cll_~curr~0.offset := init_cll_~next_node~0.base, init_cll_~next_node~0.offset; 11#L552-2true init_cll_#t~post3 := init_cll_~i~0;init_cll_~i~0 := 1 + init_cll_#t~post3;havoc init_cll_#t~post3; 13#L552-3true [2020-11-29 19:38:51,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:51,764 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 19:38:51,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:51,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909745058] [2020-11-29 19:38:51,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:51,979 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:52,006 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:52,040 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:52,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:52,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2020-11-29 19:38:52,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:52,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052272226] [2020-11-29 19:38:52,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:52,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:52,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:52,121 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:52,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:52,124 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-11-29 19:38:52,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:52,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303163002] [2020-11-29 19:38:52,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:52,197 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:52,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:52,322 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:52,959 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-11-29 19:38:53,109 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 19:38:53,308 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 19:38:53,312 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:38:53,326 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 19:38:53,619 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-29 19:38:53,620 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:38:53,624 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 19:38:53,625 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:156, output treesize:158 [2020-11-29 19:38:53,832 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-29 19:38:54,396 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-11-29 19:38:54,544 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-11-29 19:38:54,567 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:38:54,568 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:38:54,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:38:54,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:38:54,570 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:38:54,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:54,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:38:54,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:38:54,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: cll_search-alloca-2.i_Iteration1_Lasso [2020-11-29 19:38:54,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:38:54,572 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:38:54,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:54,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:54,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:54,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:54,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:54,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:54,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:54,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:54,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:54,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:54,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:54,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:55,055 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-11-29 19:38:55,454 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 19:38:55,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:38:56,322 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 18 [2020-11-29 19:38:56,396 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:38:56,404 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) [2020-11-29 19:38:56,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:56,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:56,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:56,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:56,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:56,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:56,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:56,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:56,441 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:56,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:56,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:56,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:56,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:56,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:56,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:56,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:56,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:56,511 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:56,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:56,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:56,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:56,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:56,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:56,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:56,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:56,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:56,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:56,602 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:56,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:56,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:56,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:56,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:56,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:56,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:56,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:56,616 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:56,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:56,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:56,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:56,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:56,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:56,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:56,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:56,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:56,670 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:56,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:56,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:56,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:56,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:56,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:56,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:38:56,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:38:56,733 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) [2020-11-29 19:38:56,773 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:56,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:56,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:56,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:56,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:56,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:56,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:56,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:56,781 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 [2020-11-29 19:38:56,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:56,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:56,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:56,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:56,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:56,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:56,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:56,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:56,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:56,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:56,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:56,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:56,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:56,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:56,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:38:56,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:38:56,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 [2020-11-29 19:38:56,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:56,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:56,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:56,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:56,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:56,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:56,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:56,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:56,972 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 [2020-11-29 19:38:57,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:57,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:57,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:57,020 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:57,064 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:57,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:57,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:57,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 [2020-11-29 19:38:57,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,141 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:38:57,141 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:38:57,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 [2020-11-29 19:38:57,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:57,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:57,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:57,214 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 [2020-11-29 19:38:57,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,274 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:38:57,274 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:38:57,292 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 [2020-11-29 19:38:57,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,355 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:38:57,355 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:38:57,365 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 [2020-11-29 19:38:57,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:57,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:57,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:57,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) [2020-11-29 19:38:57,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,485 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:38:57,485 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:57,493 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 [2020-11-29 19:38:57,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:38:57,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:38:57,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) [2020-11-29 19:38:57,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:57,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:57,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:57,652 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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 [2020-11-29 19:38:57,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:38:57,726 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:38:57,736 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:57,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:38:57,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:38:57,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:38:57,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:57,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:38:57,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:38:57,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:38:57,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:38:57,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:38:57,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:38:57,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:38:57,872 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:38:58,082 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-29 19:38:58,083 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:38:58,090 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:38:58,096 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:38:58,096 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:38:58,097 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_init_cll_~n, ULTIMATE.start_init_cll_~i~0) = 1*ULTIMATE.start_init_cll_~n - 1*ULTIMATE.start_init_cll_~i~0 Supporting invariants [] [2020-11-29 19:38:58,180 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-11-29 19:38:58,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:58,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:38:58,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:38:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:58,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:38:58,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:38:58,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:58,422 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:38:58,424 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2020-11-29 19:38:58,504 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 30 states and 39 transitions. Complement of second has 7 states. [2020-11-29 19:38:58,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 19:38:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:38:58,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2020-11-29 19:38:58,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-29 19:38:58,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:38:58,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-29 19:38:58,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:38:58,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-29 19:38:58,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:38:58,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2020-11-29 19:38:58,532 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:38:58,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 9 states and 11 transitions. [2020-11-29 19:38:58,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-29 19:38:58,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 19:38:58,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2020-11-29 19:38:58,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:38:58,543 INFO L691 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-11-29 19:38:58,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2020-11-29 19:38:58,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-29 19:38:58,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-29 19:38:58,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2020-11-29 19:38:58,579 INFO L714 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-11-29 19:38:58,579 INFO L594 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-11-29 19:38:58,580 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:38:58,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2020-11-29 19:38:58,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:38:58,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:38:58,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:38:58,582 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 19:38:58,582 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:38:58,582 INFO L794 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 93#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_#t~nondet9, main_~n~0, main_~head~1.base, main_~head~1.offset;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7;init_cll_#in~n := main_~n~0;havoc init_cll_#res.base, init_cll_#res.offset;havoc init_cll_#t~malloc2.base, init_cll_#t~malloc2.offset, init_cll_#t~malloc4.base, init_cll_#t~malloc4.offset, init_cll_#t~post3, init_cll_~i~0, init_cll_~next_node~0.base, init_cll_~next_node~0.offset, init_cll_~n, init_cll_~head~0.base, init_cll_~head~0.offset, init_cll_~curr~0.base, init_cll_~curr~0.offset;init_cll_~n := init_cll_#in~n;havoc init_cll_~head~0.base, init_cll_~head~0.offset;call init_cll_#t~malloc2.base, init_cll_#t~malloc2.offset := #Ultimate.allocOnHeap(12);init_cll_~curr~0.base, init_cll_~curr~0.offset := init_cll_#t~malloc2.base, init_cll_#t~malloc2.offset;call write~int(0, init_cll_~curr~0.base, init_cll_~curr~0.offset, 4);init_cll_~head~0.base, init_cll_~head~0.offset := init_cll_~curr~0.base, init_cll_~curr~0.offset;init_cll_~i~0 := 1; 94#L552-3 assume !(init_cll_~i~0 < init_cll_~n); 95#L552-4 call write~$Pointer$(init_cll_~head~0.base, init_cll_~head~0.offset, init_cll_~curr~0.base, 4 + init_cll_~curr~0.offset, 8);init_cll_#res.base, init_cll_#res.offset := init_cll_~head~0.base, init_cll_~head~0.offset; 96#L559 main_#t~ret8.base, main_#t~ret8.offset := init_cll_#res.base, init_cll_#res.offset;main_~head~1.base, main_~head~1.offset := main_#t~ret8.base, main_#t~ret8.offset;havoc main_#t~ret8.base, main_#t~ret8.offset;search_#in~head.base, search_#in~head.offset, search_#in~i := main_~head~1.base, main_~head~1.offset, main_#t~nondet9;havoc search_#t~mem6.base, search_#t~mem6.offset, search_#t~mem5, search_~head.base, search_~head.offset, search_~i, search_~curr~1.base, search_~curr~1.offset;search_~head.base, search_~head.offset := search_#in~head.base, search_#in~head.offset;search_~i := search_#in~i;search_~curr~1.base, search_~curr~1.offset := search_~head.base, search_~head.offset; 98#L564-3 [2020-11-29 19:38:58,582 INFO L796 eck$LassoCheckResult]: Loop: 98#L564-3 call search_#t~mem5 := read~int(search_~curr~1.base, search_~curr~1.offset, 4); 97#L564-1 assume !!(search_#t~mem5 != search_~i);havoc search_#t~mem5;call search_#t~mem6.base, search_#t~mem6.offset := read~$Pointer$(search_~curr~1.base, 4 + search_~curr~1.offset, 8);search_~curr~1.base, search_~curr~1.offset := search_#t~mem6.base, search_#t~mem6.offset;havoc search_#t~mem6.base, search_#t~mem6.offset; 98#L564-3 [2020-11-29 19:38:58,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:58,583 INFO L82 PathProgramCache]: Analyzing trace with hash 28696935, now seen corresponding path program 1 times [2020-11-29 19:38:58,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:58,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612172995] [2020-11-29 19:38:58,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:58,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:58,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:58,678 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:58,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:58,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1702, now seen corresponding path program 1 times [2020-11-29 19:38:58,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:58,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528687800] [2020-11-29 19:38:58,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:58,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:58,719 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:58,722 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:58,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:58,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1807951500, now seen corresponding path program 1 times [2020-11-29 19:38:58,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:58,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022009929] [2020-11-29 19:38:58,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:58,762 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:38:58,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:38:58,800 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:38:58,924 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-11-29 19:38:59,913 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 115 [2020-11-29 19:38:59,984 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 19:39:00,367 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-11-29 19:39:00,368 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:39:00,395 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 19:39:00,715 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-11-29 19:39:00,715 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:39:00,718 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 19:39:00,719 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:189, output treesize:165 [2020-11-29 19:39:01,009 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-11-29 19:39:01,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:39:01 BoogieIcfgContainer [2020-11-29 19:39:01,065 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:39:01,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:39:01,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:39:01,067 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:39:01,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:51" (3/4) ... [2020-11-29 19:39:01,072 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:39:01,152 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_33828c06-4c33-4b9c-a3e0-661f6a470056/bin/uautomizer/witness.graphml [2020-11-29 19:39:01,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:39:01,155 INFO L168 Benchmark]: Toolchain (without parser) took 11505.91 ms. Allocated memory was 113.2 MB in the beginning and 163.6 MB in the end (delta: 50.3 MB). Free memory was 80.8 MB in the beginning and 103.7 MB in the end (delta: -22.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:01,156 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 75.5 MB. Free memory was 36.0 MB in the beginning and 36.0 MB in the end (delta: 41.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:39:01,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.05 ms. Allocated memory is still 113.2 MB. Free memory was 80.8 MB in the beginning and 79.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:01,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.90 ms. Allocated memory is still 113.2 MB. Free memory was 79.0 MB in the beginning and 77.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:01,165 INFO L168 Benchmark]: Boogie Preprocessor took 56.95 ms. Allocated memory is still 113.2 MB. Free memory was 77.3 MB in the beginning and 75.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:39:01,166 INFO L168 Benchmark]: RCFGBuilder took 861.88 ms. Allocated memory is still 113.2 MB. Free memory was 75.9 MB in the beginning and 60.5 MB in the end (delta: 15.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:01,167 INFO L168 Benchmark]: BuchiAutomizer took 9533.52 ms. Allocated memory was 113.2 MB in the beginning and 163.6 MB in the end (delta: 50.3 MB). Free memory was 60.1 MB in the beginning and 105.7 MB in the end (delta: -45.6 MB). Peak memory consumption was 65.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:01,174 INFO L168 Benchmark]: Witness Printer took 86.37 ms. Allocated memory is still 163.6 MB. Free memory was 105.7 MB in the beginning and 103.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:01,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 75.5 MB. Free memory was 36.0 MB in the beginning and 36.0 MB in the end (delta: 41.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 830.05 ms. Allocated memory is still 113.2 MB. Free memory was 80.8 MB in the beginning and 79.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 121.90 ms. Allocated memory is still 113.2 MB. Free memory was 79.0 MB in the beginning and 77.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.95 ms. Allocated memory is still 113.2 MB. Free memory was 77.3 MB in the beginning and 75.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 861.88 ms. Allocated memory is still 113.2 MB. Free memory was 75.9 MB in the beginning and 60.5 MB in the end (delta: 15.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 9533.52 ms. Allocated memory was 113.2 MB in the beginning and 163.6 MB in the end (delta: 50.3 MB). Free memory was 60.1 MB in the beginning and 105.7 MB in the end (delta: -45.6 MB). Peak memory consumption was 65.5 MB. Max. memory is 16.1 GB. * Witness Printer took 86.37 ms. Allocated memory is still 163.6 MB. Free memory was 105.7 MB in the beginning and 103.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function n + -1 * i and consists of 5 locations. The remainder module has 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 8.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 10 SDslu, 16 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital263 mio100 ax100 hnf100 lsp97 ukn43 mio100 lsp27 div100 bol100 ite100 ukn100 eq177 hnf92 smp100 dnf172 smp93 tf100 neg95 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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: 564]: 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 {i=1, NULL=0, curr=-1, \result=0, head=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@217d57c1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3db9549a=0, next_node=0, \result=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@633aa237=16, next_node=0, head=-1, head=-1, \old(i)=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@217d57c1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6056c3fc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@705ea01b=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@a8c6061=0, i=16, curr=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a95ae1b=0, head=-1, \old(n)=0, n=0, head=-1, head=0, n=0, head=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19bd8ef2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a95ae1b=0, curr=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19bd8ef2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@705ea01b=0, curr=-1, head=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 564]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L570] int n = __VERIFIER_nondet_int(); [L548] node_t* head; [L549] node_t* curr = malloc(sizeof(node_t)); [L550] curr->val = 0 [L551] head = curr [L552] int i = 1; [L552] COND FALSE !(i < n) [L558] curr->next = head [L559] return head; [L571] node_t* head = init_cll(n); [L563] node_t* curr = head; Loop: [L564] EXPR curr->val [L564] COND TRUE curr->val != i [L565] EXPR curr->next [L565] curr = curr->next End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...