./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/for_infinite_loop_1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/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-cad4683 [2019-10-22 08:54:53,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:53,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:53,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:53,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:53,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:53,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:53,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:53,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:53,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:53,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:53,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:53,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:53,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:53,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:53,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:53,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:53,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:53,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:53,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:53,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:53,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:53,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:53,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:53,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:53,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:53,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:53,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:53,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:53,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:53,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:53,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:53,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:53,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:53,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:53,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:53,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:53,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:53,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:53,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:53,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:53,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:54:53,234 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:53,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:53,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:53,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:53,236 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:53,236 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:54:53,236 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:54:53,236 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:54:53,236 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:54:53,236 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:54:53,237 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:54:53,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:53,237 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:53,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:54:53,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:53,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:53,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:53,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:54:53,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:54:53,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:54:53,238 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:53,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:53,238 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:54:53,239 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:53,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:54:53,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:53,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:53,239 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:54:53,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:53,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:53,240 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:54:53,240 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:54:53,241 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/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/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 [2019-10-22 08:54:53,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:53,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:53,283 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:53,285 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:53,286 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:53,286 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/../../sv-benchmarks/c/loops/for_infinite_loop_1.c [2019-10-22 08:54:53,337 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/data/6c7c91a9f/a5ac608b272b4c15815779d8a48784a6/FLAG735a01dfd [2019-10-22 08:54:53,703 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:53,705 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/sv-benchmarks/c/loops/for_infinite_loop_1.c [2019-10-22 08:54:53,712 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/data/6c7c91a9f/a5ac608b272b4c15815779d8a48784a6/FLAG735a01dfd [2019-10-22 08:54:53,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/data/6c7c91a9f/a5ac608b272b4c15815779d8a48784a6 [2019-10-22 08:54:53,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:53,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:53,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:53,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:53,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:53,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:53" (1/1) ... [2019-10-22 08:54:53,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aefa56d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:53, skipping insertion in model container [2019-10-22 08:54:53,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:53" (1/1) ... [2019-10-22 08:54:53,749 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:53,764 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:53,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:53,923 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:54,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:54,020 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:54,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54 WrapperNode [2019-10-22 08:54:54,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:54,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:54,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:54,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:54,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54" (1/1) ... [2019-10-22 08:54:54,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54" (1/1) ... [2019-10-22 08:54:54,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:54,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:54,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:54,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:54,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54" (1/1) ... [2019-10-22 08:54:54,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54" (1/1) ... [2019-10-22 08:54:54,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54" (1/1) ... [2019-10-22 08:54:54,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54" (1/1) ... [2019-10-22 08:54:54,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54" (1/1) ... [2019-10-22 08:54:54,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54" (1/1) ... [2019-10-22 08:54:54,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54" (1/1) ... [2019-10-22 08:54:54,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:54,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:54,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:54,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:54,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/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 [2019-10-22 08:54:54,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:54,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:54,265 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:54,265 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 08:54:54,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:54 BoogieIcfgContainer [2019-10-22 08:54:54,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:54,267 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:54:54,267 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:54:54,270 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:54:54,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:54:54,271 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:54:53" (1/3) ... [2019-10-22 08:54:54,272 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44fbf58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:54:54, skipping insertion in model container [2019-10-22 08:54:54,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:54:54,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:54" (2/3) ... [2019-10-22 08:54:54,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44fbf58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:54:54, skipping insertion in model container [2019-10-22 08:54:54,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:54:54,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:54" (3/3) ... [2019-10-22 08:54:54,275 INFO L371 chiAutomizerObserver]: Analyzing ICFG for_infinite_loop_1.c [2019-10-22 08:54:54,317 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:54:54,317 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:54:54,317 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:54:54,317 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:54,317 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:54,318 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:54:54,318 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:54,318 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:54:54,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-10-22 08:54:54,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:54:54,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:54:54,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:54:54,357 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:54:54,358 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 08:54:54,358 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:54:54,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-10-22 08:54:54,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:54:54,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:54:54,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:54:54,359 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:54:54,359 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 08:54:54,366 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~i~0, main_~x~0, main_~y~0, main_~n~0;main_~i~0 := 0;main_~x~0 := 0;main_~y~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L17true assume !!(main_~n~0 > 0);main_~i~0 := 0; 8#L18-2true [2019-10-22 08:54:54,367 INFO L793 eck$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 [2019-10-22 08:54:54,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:54,372 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-10-22 08:54:54,380 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:54,380 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501170096] [2019-10-22 08:54:54,380 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:54,380 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:54,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:54,489 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:54,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:54,491 INFO L82 PathProgramCache]: Analyzing trace with hash 43921, now seen corresponding path program 1 times [2019-10-22 08:54:54,491 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:54,491 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138556899] [2019-10-22 08:54:54,491 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:54,491 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:54,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:54,506 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:54,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:54,508 INFO L82 PathProgramCache]: Analyzing trace with hash 29745548, now seen corresponding path program 1 times [2019-10-22 08:54:54,508 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:54,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716539227] [2019-10-22 08:54:54,509 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:54,509 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:54,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:54,526 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:54,567 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:54:54,568 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:54:54,568 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:54:54,568 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:54:54,568 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:54:54,569 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:54,569 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:54:54,569 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:54:54,569 INFO L131 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_1.c_Iteration1_Loop [2019-10-22 08:54:54,569 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:54:54,569 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:54:54,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:54,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:54,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:54,686 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:54:54,687 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/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 [2019-10-22 08:54:54,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:54,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:54:54,709 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:54,709 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/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:54:54,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:54,731 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:54,736 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:54,736 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/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:54:54,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:54,744 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:54:54,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:54:54,758 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:54,778 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:54,779 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] [2019-10-22 08:54:54,814 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:54:54,814 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:54:54,814 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:54:54,814 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:54:54,814 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:54:54,815 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:54,815 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:54:54,816 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:54:54,816 INFO L131 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_1.c_Iteration1_Lasso [2019-10-22 08:54:54,816 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:54:54,816 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:54:54,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:54,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:54,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:54,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:54,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:54,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:54,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:54,956 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:54:54,956 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/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 [2019-10-22 08:54:54,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:54,967 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/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) [2019-10-22 08:54:54,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:54:54,980 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 [2019-10-22 08:54:54,993 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:54,993 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/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:55,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:55,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:54:55,003 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:55,004 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/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:55,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:55,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:54:55,011 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:55,011 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/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:55,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:55,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:54:55,021 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:55,021 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/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/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 [2019-10-22 08:54:55,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:55,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:54:55,035 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:55,035 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/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/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 [2019-10-22 08:54:55,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:55,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:54:55,050 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:55,050 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/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:55,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:55,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:54:55,069 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:55,069 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: [] [2019-10-22 08:54:55,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:54:55 BoogieIcfgContainer [2019-10-22 08:54:55,091 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:54:55,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:55,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:55,092 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:55,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:54" (3/4) ... [2019-10-22 08:54:55,095 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:54:55,124 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0d1e0bc7-be66-4e03-a71b-e34e4a3afe69/bin/uautomizer/witness.graphml [2019-10-22 08:54:55,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:55,126 INFO L168 Benchmark]: Toolchain (without parser) took 1396.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 949.9 MB in the beginning and 984.1 MB in the end (delta: -34.2 MB). Peak memory consumption was 103.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:55,127 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:55,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:55,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.35 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: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:55,128 INFO L168 Benchmark]: Boogie Preprocessor took 17.32 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. [2019-10-22 08:54:55,129 INFO L168 Benchmark]: RCFGBuilder took 197.43 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:55,129 INFO L168 Benchmark]: BuchiAutomizer took 824.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.1 MB in the end (delta: 127.4 MB). Peak memory consumption was 127.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:55,129 INFO L168 Benchmark]: Witness Printer took 32.86 ms. Allocated memory is still 1.2 GB. Free memory is still 984.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:55,132 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.35 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: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.32 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 197.43 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 824.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.1 MB in the end (delta: 127.4 MB). Peak memory consumption was 127.4 MB. Max. memory is 11.5 GB. * Witness Printer took 32.86 ms. Allocated memory is still 1.2 GB. Free memory is still 984.1 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 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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: 0.1s - 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@8902d43=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@7e8b94e3=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@8902d43=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@7e8b94e3=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@8902d43=0 + sum_{k=0}^i 0, \old(cond)=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@7e8b94e3=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...