./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/for_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/for_infinite_loop_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/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 32bit --witnessprinter.graph.data.programhash fa73ad1a0f138950efa961688e68ed3fdb6cd647 .......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:46:58,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:46:58,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:46:58,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:46:58,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:46:58,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:46:58,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:46:58,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:46:58,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:46:58,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:46:58,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:46:58,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:46:58,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:46:58,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:46:58,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:46:58,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:46:58,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:46:58,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:46:58,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:46:58,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:46:58,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:46:58,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:46:58,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:46:58,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:46:58,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:46:58,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:46:58,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:46:58,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:46:58,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:46:58,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:46:58,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:46:58,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:46:58,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:46:58,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:46:58,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:46:58,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:46:58,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:46:58,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:46:58,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:46:58,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:46:58,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:46:58,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:46:58,618 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:46:58,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:46:58,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:46:58,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:46:58,619 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:46:58,619 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:46:58,619 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:46:58,620 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:46:58,620 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:46:58,620 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:46:58,620 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:46:58,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:46:58,623 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:46:58,624 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:46:58,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:46:58,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:46:58,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:46:58,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:46:58,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:46:58,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:46:58,625 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:46:58,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:46:58,626 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:46:58,626 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:46:58,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:46:58,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:46:58,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:46:58,627 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:46:58,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:46:58,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:46:58,629 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:46:58,629 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:46:58,630 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa73ad1a0f138950efa961688e68ed3fdb6cd647 [2019-11-25 08:46:58,829 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:46:58,839 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:46:58,843 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:46:58,845 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:46:58,846 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:46:58,846 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/../../sv-benchmarks/c/loops/for_infinite_loop_1.c [2019-11-25 08:46:58,909 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/data/8eb485a07/7dd2e8d44f2e4228944d0dc52b0c3571/FLAG008b0c9a0 [2019-11-25 08:46:59,306 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:46:59,306 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/sv-benchmarks/c/loops/for_infinite_loop_1.c [2019-11-25 08:46:59,312 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/data/8eb485a07/7dd2e8d44f2e4228944d0dc52b0c3571/FLAG008b0c9a0 [2019-11-25 08:46:59,747 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/data/8eb485a07/7dd2e8d44f2e4228944d0dc52b0c3571 [2019-11-25 08:46:59,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:46:59,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:46:59,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:59,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:46:59,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:46:59,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:59" (1/1) ... [2019-11-25 08:46:59,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b3a69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:59, skipping insertion in model container [2019-11-25 08:46:59,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:59" (1/1) ... [2019-11-25 08:46:59,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:46:59,790 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:46:59,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:00,003 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:47:00,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:00,122 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:47:00,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00 WrapperNode [2019-11-25 08:47:00,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:00,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:00,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:47:00,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:47:00,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00" (1/1) ... [2019-11-25 08:47:00,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00" (1/1) ... [2019-11-25 08:47:00,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:00,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:47:00,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:47:00,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:47:00,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00" (1/1) ... [2019-11-25 08:47:00,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00" (1/1) ... [2019-11-25 08:47:00,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00" (1/1) ... [2019-11-25 08:47:00,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00" (1/1) ... [2019-11-25 08:47:00,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00" (1/1) ... [2019-11-25 08:47:00,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00" (1/1) ... [2019-11-25 08:47:00,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00" (1/1) ... [2019-11-25 08:47:00,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:47:00,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:47:00,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:47:00,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:47:00,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:47:00,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:47:00,439 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:47:00,439 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 08:47:00,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:00 BoogieIcfgContainer [2019-11-25 08:47:00,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:47:00,441 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:47:00,441 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:47:00,444 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:47:00,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:00,445 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:46:59" (1/3) ... [2019-11-25 08:47:00,447 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@482fa0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:47:00, skipping insertion in model container [2019-11-25 08:47:00,447 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:00,447 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:00" (2/3) ... [2019-11-25 08:47:00,448 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@482fa0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:47:00, skipping insertion in model container [2019-11-25 08:47:00,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:00,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:00" (3/3) ... [2019-11-25 08:47:00,450 INFO L371 chiAutomizerObserver]: Analyzing ICFG for_infinite_loop_1.c [2019-11-25 08:47:00,510 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:47:00,510 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:47:00,510 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:47:00,511 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:47:00,511 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:47:00,511 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:47:00,511 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:47:00,512 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:47:00,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-25 08:47:00,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:47:00,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:00,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:00,557 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:47:00,557 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:47:00,560 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:47:00,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-25 08:47:00,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:47:00,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:00,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:00,563 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:47:00,564 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:47:00,571 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~i~0, main_~x~0, main_~y~0, main_~n~0;main_~i~0 := 0;main_~x~0 := 0;main_~y~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L17true assume !!(main_~n~0 > 0);main_~i~0 := 0; 8#L18-2true [2019-11-25 08:47:00,572 INFO L796 eck$LassoCheckResult]: Loop: 8#L18-2true assume !false;__VERIFIER_assert_#in~cond := (if 0 == main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 4#L5true assume !(0 == __VERIFIER_assert_~cond); 14#L5-2true main_#t~post2 := main_~i~0;main_~i~0 := 1 + main_#t~post2;havoc main_#t~post2; 8#L18-2true [2019-11-25 08:47:00,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:00,578 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-11-25 08:47:00,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:00,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504167009] [2019-11-25 08:47:00,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:00,662 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:00,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:00,664 INFO L82 PathProgramCache]: Analyzing trace with hash 43921, now seen corresponding path program 1 times [2019-11-25 08:47:00,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:00,664 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392756693] [2019-11-25 08:47:00,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:00,689 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:00,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:00,690 INFO L82 PathProgramCache]: Analyzing trace with hash 29745548, now seen corresponding path program 1 times [2019-11-25 08:47:00,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:00,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283620454] [2019-11-25 08:47:00,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:00,710 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:00,764 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:00,764 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:00,764 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:00,765 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:00,765 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:47:00,765 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:00,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:00,765 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:00,765 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_1.c_Iteration1_Loop [2019-11-25 08:47:00,766 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:00,766 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:00,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:00,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:00,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:00,946 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:00,947 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:00,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:00,957 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:47:00,968 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:00,968 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/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 [2019-11-25 08:47:00,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:00,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:47:00,978 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:00,978 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/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 [2019-11-25 08:47:00,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:00,983 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/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 [2019-11-25 08:47:01,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:47:01,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:47:01,022 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:01,022 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=1}, {ULTIMATE.start_main_~i~0=2}, {ULTIMATE.start_main_~i~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] [2019-11-25 08:47:01,053 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:01,053 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:01,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:01,053 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:01,054 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:47:01,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:01,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:01,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:01,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_1.c_Iteration1_Lasso [2019-11-25 08:47:01,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:01,054 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:01,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:01,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:01,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:01,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:01,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:01,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:01,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:01,249 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:01,249 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/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 [2019-11-25 08:47:01,261 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:01,262 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/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 [2019-11-25 08:47:01,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:47:01,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:47:01,295 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:01,295 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=1}, {ULTIMATE.start_main_~i~0=2}, {ULTIMATE.start_main_~i~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:47:01,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:01,314 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:01,319 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:01,319 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/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) [2019-11-25 08:47:01,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:01,339 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:01,346 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:01,346 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=0} Honda state: {ULTIMATE.start_main_~n~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:47:01,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:01,367 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:01,372 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:01,372 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:01,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:01,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:47:01,389 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:01,389 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start_main_~x~0=0, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:01,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:01,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:47:01,397 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:01,398 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:47:01,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:01,409 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:01,414 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:47:01,414 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2019-11-25 08:47:01,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:47:01 BoogieIcfgContainer [2019-11-25 08:47:01,437 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:47:01,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:47:01,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:47:01,438 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:47:01,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:00" (3/4) ... [2019-11-25 08:47:01,441 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:47:01,488 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d21dad83-a874-4d33-adce-dae01f5d7bbd/bin/uautomizer/witness.graphml [2019-11-25 08:47:01,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:47:01,494 INFO L168 Benchmark]: Toolchain (without parser) took 1739.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 950.1 MB in the beginning and 980.4 MB in the end (delta: -30.3 MB). Peak memory consumption was 103.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:01,497 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:01,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:01,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:01,499 INFO L168 Benchmark]: Boogie Preprocessor took 17.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:01,499 INFO L168 Benchmark]: RCFGBuilder took 268.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:01,499 INFO L168 Benchmark]: BuchiAutomizer took 996.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.4 MB in the end (delta: 127.1 MB). Peak memory consumption was 127.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:01,500 INFO L168 Benchmark]: Witness Printer took 51.28 ms. Allocated memory is still 1.2 GB. Free memory is still 980.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:01,502 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 369.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 268.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 996.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.4 MB in the end (delta: 127.1 MB). Peak memory consumption was 127.1 MB. Max. memory is 11.5 GB. * Witness Printer took 51.28 ms. Allocated memory is still 1.2 GB. Free memory is still 980.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital28 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite144 ukn100 eq199 hnf92 smp47 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {cond=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@568e85ba=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@34eaa3a8=0, x=0, n=0, y=0, i=0} State at position 1 is {cond=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@568e85ba=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@34eaa3a8=0, x=0, n=1, y=0, i=0} For i>1, the state at position i is {cond=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@568e85ba=0 + sum_{k=0}^i 0, \old(cond)=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@34eaa3a8=0 + sum_{k=0}^i 0, x=0 + sum_{k=0}^i 0, n=1 + sum_{k=0}^i 0, y=0 + sum_{k=0}^i 0, i=0 + sum_{k=0}^i 1 + 2 + -2} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 1, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 18]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L14] unsigned int i=0; [L15] int x=0, y=0; [L16] int n=__VERIFIER_nondet_int(); [L17] COND FALSE !(!(n>0)) [L18] i=0 Loop: [L18] COND TRUE 1 [L5] COND FALSE !(!(cond)) [L18] i++ End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...