./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/for_infinite_loop_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/for_infinite_loop_2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/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 e1df1cc3b7becbc475eb123d613ca77d2c5c5b02 ................................................................................................................................................................................................................................................................................................................................................................................................. 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-cad4683 [2019-11-15 21:56:20,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:56:20,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:56:20,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:56:20,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:56:20,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:56:20,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:56:20,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:56:20,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:56:20,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:56:20,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:56:20,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:56:20,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:56:20,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:56:20,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:56:20,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:56:20,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:56:20,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:56:20,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:56:20,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:56:20,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:56:20,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:56:20,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:56:20,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:56:20,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:56:20,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:56:20,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:56:20,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:56:20,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:56:20,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:56:20,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:56:20,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:56:20,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:56:20,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:56:20,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:56:20,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:56:20,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:56:20,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:56:20,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:56:20,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:56:20,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:56:20,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 21:56:20,207 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:56:20,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:56:20,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:56:20,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:56:20,210 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:56:20,210 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 21:56:20,210 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 21:56:20,211 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 21:56:20,211 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 21:56:20,211 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 21:56:20,212 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 21:56:20,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:56:20,212 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:56:20,213 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:56:20,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:56:20,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:56:20,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:56:20,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 21:56:20,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 21:56:20,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 21:56:20,217 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:56:20,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:56:20,217 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 21:56:20,220 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:56:20,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 21:56:20,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:56:20,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:56:20,221 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 21:56:20,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:56:20,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:56:20,222 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 21:56:20,223 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 21:56:20,223 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_d3795f7e-0563-4eca-ab57-3725734e7eaa/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 -> e1df1cc3b7becbc475eb123d613ca77d2c5c5b02 [2019-11-15 21:56:20,254 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:56:20,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:56:20,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:56:20,270 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:56:20,271 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:56:20,271 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/../../sv-benchmarks/c/loops/for_infinite_loop_2.c [2019-11-15 21:56:20,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/data/3a0cbf0d6/0eeab6b9a22c49579c4c10ecfff2a2f4/FLAGc7d55fd3f [2019-11-15 21:56:20,763 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:56:20,764 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/sv-benchmarks/c/loops/for_infinite_loop_2.c [2019-11-15 21:56:20,771 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/data/3a0cbf0d6/0eeab6b9a22c49579c4c10ecfff2a2f4/FLAGc7d55fd3f [2019-11-15 21:56:21,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/data/3a0cbf0d6/0eeab6b9a22c49579c4c10ecfff2a2f4 [2019-11-15 21:56:21,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:56:21,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:56:21,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:56:21,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:56:21,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:56:21,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:56:21" (1/1) ... [2019-11-15 21:56:21,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714c62d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21, skipping insertion in model container [2019-11-15 21:56:21,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:56:21" (1/1) ... [2019-11-15 21:56:21,216 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:56:21,235 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:56:21,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:56:21,474 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:56:21,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:56:21,500 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:56:21,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21 WrapperNode [2019-11-15 21:56:21,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:56:21,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:56:21,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:56:21,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:56:21,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21" (1/1) ... [2019-11-15 21:56:21,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21" (1/1) ... [2019-11-15 21:56:21,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:56:21,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:56:21,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:56:21,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:56:21,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21" (1/1) ... [2019-11-15 21:56:21,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21" (1/1) ... [2019-11-15 21:56:21,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21" (1/1) ... [2019-11-15 21:56:21,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21" (1/1) ... [2019-11-15 21:56:21,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21" (1/1) ... [2019-11-15 21:56:21,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21" (1/1) ... [2019-11-15 21:56:21,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21" (1/1) ... [2019-11-15 21:56:21,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:56:21,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:56:21,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:56:21,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:56:21,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/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 [2019-11-15 21:56:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:56:21,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:56:21,812 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:56:21,813 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-15 21:56:21,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:56:21 BoogieIcfgContainer [2019-11-15 21:56:21,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:56:21,815 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 21:56:21,815 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 21:56:21,819 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 21:56:21,820 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:56:21,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 09:56:21" (1/3) ... [2019-11-15 21:56:21,821 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c5d84a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:56:21, skipping insertion in model container [2019-11-15 21:56:21,822 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:56:21,822 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:21" (2/3) ... [2019-11-15 21:56:21,823 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c5d84a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:56:21, skipping insertion in model container [2019-11-15 21:56:21,823 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:56:21,823 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:56:21" (3/3) ... [2019-11-15 21:56:21,825 INFO L371 chiAutomizerObserver]: Analyzing ICFG for_infinite_loop_2.c [2019-11-15 21:56:21,880 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 21:56:21,880 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 21:56:21,880 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 21:56:21,880 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:56:21,881 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:56:21,881 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 21:56:21,881 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:56:21,881 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 21:56:21,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-15 21:56:21,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 21:56:21,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:56:21,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:56:21,929 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 21:56:21,929 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:56:21,929 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 21:56:21,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-15 21:56:21,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 21:56:21,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:56:21,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:56:21,932 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 21:56:21,932 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:56:21,941 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~i~0, main_~x~0, main_~y~0, main_~n~0;main_~i~0 := 0;main_~x~0 := 0;main_~y~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L17true assume !!(main_~n~0 > 0);main_~i~0 := 0; 8#L18-2true [2019-11-15 21:56:21,941 INFO L793 eck$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 [2019-11-15 21:56:21,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:56:21,949 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-11-15 21:56:21,958 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:56:21,958 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222703154] [2019-11-15 21:56:21,959 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:21,959 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:21,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:56:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:56:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:56:22,072 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:56:22,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:56:22,074 INFO L82 PathProgramCache]: Analyzing trace with hash 43921, now seen corresponding path program 1 times [2019-11-15 21:56:22,074 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:56:22,075 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261895732] [2019-11-15 21:56:22,075 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:22,075 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:22,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:56:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:56:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:56:22,101 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:56:22,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:56:22,103 INFO L82 PathProgramCache]: Analyzing trace with hash 29745548, now seen corresponding path program 1 times [2019-11-15 21:56:22,103 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:56:22,103 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109789132] [2019-11-15 21:56:22,104 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:22,104 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:22,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:56:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:56:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:56:22,127 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:56:22,204 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:56:22,205 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:56:22,205 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:56:22,205 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:56:22,206 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 21:56:22,206 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:56:22,206 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:56:22,206 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:56:22,206 INFO L131 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_2.c_Iteration1_Loop [2019-11-15 21:56:22,207 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:56:22,207 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:56:22,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:56:22,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:56:22,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:56:22,388 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:56:22,388 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/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 [2019-11-15 21:56:22,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:56:22,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 21:56:22,407 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:56:22,407 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: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/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 [2019-11-15 21:56:22,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:56:22,418 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 21:56:22,423 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:56:22,423 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_d3795f7e-0563-4eca-ab57-3725734e7eaa/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 [2019-11-15 21:56:22,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:56:22,430 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/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 [2019-11-15 21:56:22,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 21:56:22,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 21:56:22,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:56:22,460 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] [2019-11-15 21:56:22,505 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:56:22,505 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:56:22,505 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:56:22,506 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:56:22,506 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 21:56:22,506 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:56:22,506 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:56:22,506 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:56:22,506 INFO L131 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_2.c_Iteration1_Lasso [2019-11-15 21:56:22,507 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:56:22,507 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:56:22,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:56:22,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:56:22,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:56:22,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:56:22,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:56:22,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:56:22,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:56:22,736 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:56:22,736 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:56:22,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:56:22,750 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:56:22,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 21:56:22,776 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:56:22,800 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:56:22,800 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_d3795f7e-0563-4eca-ab57-3725734e7eaa/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) [2019-11-15 21:56:22,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:56:22,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 21:56:22,821 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:56:22,821 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_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:56:22,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:56:22,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 21:56:22,840 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:56:22,840 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_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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 [2019-11-15 21:56:22,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:56:22,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 21:56:22,870 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:56:22,870 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_d3795f7e-0563-4eca-ab57-3725734e7eaa/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) [2019-11-15 21:56:22,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:56:22,888 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:56:22,899 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:56:22,899 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_d3795f7e-0563-4eca-ab57-3725734e7eaa/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 [2019-11-15 21:56:22,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:56:22,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 21:56:22,909 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:56:22,910 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_d3795f7e-0563-4eca-ab57-3725734e7eaa/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) [2019-11-15 21:56:22,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:56:22,931 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 [2019-11-15 21:56:22,937 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:56:22,937 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: [] [2019-11-15 21:56:22,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 09:56:22 BoogieIcfgContainer [2019-11-15 21:56:22,973 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 21:56:22,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:56:22,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:56:22,974 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:56:22,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:56:21" (3/4) ... [2019-11-15 21:56:22,980 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 21:56:23,049 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d3795f7e-0563-4eca-ab57-3725734e7eaa/bin/uautomizer/witness.graphml [2019-11-15 21:56:23,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:56:23,053 INFO L168 Benchmark]: Toolchain (without parser) took 1854.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -67.4 MB). Peak memory consumption was 93.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:56:23,057 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-15 21:56:23,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -207.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:56:23,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:56:23,061 INFO L168 Benchmark]: Boogie Preprocessor took 19.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:56:23,062 INFO L168 Benchmark]: RCFGBuilder took 259.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:56:23,063 INFO L168 Benchmark]: BuchiAutomizer took 1157.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 117.6 MB). Peak memory consumption was 117.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:56:23,063 INFO L168 Benchmark]: Witness Printer took 75.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:56:23,065 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 301.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -207.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 259.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1157.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 117.6 MB). Peak memory consumption was 117.6 MB. Max. memory is 11.5 GB. * Witness Printer took 75.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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 1.0s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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 smp49 dnf95 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@52d55994=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@610beec9=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@52d55994=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@610beec9=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@52d55994=0 + sum_{k=0}^i 0, \old(cond)=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@610beec9=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...