./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/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 ac6fc95614e4af693eaa4f1b073012c44a5dd7d3 ............................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:54:41,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:41,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:41,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:41,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:41,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:41,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:41,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:41,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:41,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:41,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:41,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:41,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:41,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:41,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:41,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:41,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:41,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:41,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:41,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:41,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:41,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:41,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:41,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:41,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:41,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:41,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:41,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:41,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:41,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:41,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:41,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:41,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:41,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:41,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:41,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:41,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:41,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:41,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:41,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:41,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:41,220 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:54:41,246 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:41,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:41,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:41,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:41,257 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:41,257 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:54:41,257 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:54:41,257 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:54:41,258 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:54:41,258 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:54:41,258 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:54:41,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:41,258 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:41,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:54:41,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:54:41,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:41,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:41,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:54:41,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:54:41,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:54:41,261 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:41,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:41,261 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:54:41,261 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:41,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:54:41,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:41,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:41,262 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:54:41,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:41,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:54:41,263 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:54:41,264 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:54:41,265 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_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/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 -> ac6fc95614e4af693eaa4f1b073012c44a5dd7d3 [2019-11-25 08:54:41,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:41,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:41,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:41,450 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:41,450 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:41,451 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_2.c [2019-11-25 08:54:41,505 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/data/e6f3ccf0e/2bf5ce78a1164f8792ead6f670e10851/FLAG4af768a89 [2019-11-25 08:54:41,877 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:41,877 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/sv-benchmarks/c/loops/while_infinite_loop_2.c [2019-11-25 08:54:41,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/data/e6f3ccf0e/2bf5ce78a1164f8792ead6f670e10851/FLAG4af768a89 [2019-11-25 08:54:41,893 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/data/e6f3ccf0e/2bf5ce78a1164f8792ead6f670e10851 [2019-11-25 08:54:41,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:41,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:41,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:41,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:41,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:41,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:41,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54728782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41, skipping insertion in model container [2019-11-25 08:54:41,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:41,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:41,924 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:42,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:42,093 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:42,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:42,197 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:42,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42 WrapperNode [2019-11-25 08:54:42,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:42,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:42,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:42,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:42,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42" (1/1) ... [2019-11-25 08:54:42,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42" (1/1) ... [2019-11-25 08:54:42,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:42,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:42,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:42,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:42,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42" (1/1) ... [2019-11-25 08:54:42,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42" (1/1) ... [2019-11-25 08:54:42,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42" (1/1) ... [2019-11-25 08:54:42,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42" (1/1) ... [2019-11-25 08:54:42,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42" (1/1) ... [2019-11-25 08:54:42,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42" (1/1) ... [2019-11-25 08:54:42,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42" (1/1) ... [2019-11-25 08:54:42,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:42,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:42,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:42,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:42,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:42,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:42,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:42,426 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:42,426 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 08:54:42,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:42 BoogieIcfgContainer [2019-11-25 08:54:42,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:42,428 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:54:42,428 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:54:42,431 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:54:42,432 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:42,432 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:54:41" (1/3) ... [2019-11-25 08:54:42,434 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d9d2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:54:42, skipping insertion in model container [2019-11-25 08:54:42,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:42,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:42" (2/3) ... [2019-11-25 08:54:42,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d9d2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:54:42, skipping insertion in model container [2019-11-25 08:54:42,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:42,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:42" (3/3) ... [2019-11-25 08:54:42,444 INFO L371 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_2.c [2019-11-25 08:54:42,490 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:54:42,491 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:54:42,491 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:54:42,491 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:42,492 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:42,492 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:54:42,492 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:42,492 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:54:42,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-25 08:54:42,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:54:42,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:42,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:42,526 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:54:42,527 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:54:42,527 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:54:42,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-25 08:54:42,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:54:42,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:42,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:42,529 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:54:42,529 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:54:42,536 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~x~0;main_~x~0 := 0; 9#L4-2true [2019-11-25 08:54:42,536 INFO L796 eck$LassoCheckResult]: Loop: 9#L4-2true 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; 11#L4true assume !(0 == __VERIFIER_assert_~cond); 9#L4-2true [2019-11-25 08:54:42,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:42,542 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:54:42,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:42,550 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896943106] [2019-11-25 08:54:42,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:42,635 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:42,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:42,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-11-25 08:54:42,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:42,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659087970] [2019-11-25 08:54:42,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:42,654 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:42,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:42,655 INFO L82 PathProgramCache]: Analyzing trace with hash 31079, now seen corresponding path program 1 times [2019-11-25 08:54:42,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:42,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281229050] [2019-11-25 08:54:42,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:42,666 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:42,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:54:42 BoogieIcfgContainer [2019-11-25 08:54:42,759 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:54:42,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:42,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:42,760 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:42,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:42" (3/4) ... [2019-11-25 08:54:42,763 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:54:42,838 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2e350f93-ca50-4b3a-a587-bf584c7d1bf6/bin/uautomizer/witness.graphml [2019-11-25 08:54:42,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:42,842 INFO L168 Benchmark]: Toolchain (without parser) took 943.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:42,842 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:42,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -206.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:42,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.10 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. [2019-11-25 08:54:42,844 INFO L168 Benchmark]: Boogie Preprocessor took 17.38 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. [2019-11-25 08:54:42,845 INFO L168 Benchmark]: RCFGBuilder took 179.45 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:42,845 INFO L168 Benchmark]: BuchiAutomizer took 331.53 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: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:42,846 INFO L168 Benchmark]: Witness Printer took 78.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:42,849 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -206.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.10 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 17.38 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 179.45 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 331.53 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: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Witness Printer took 78.88 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. * 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 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {cond=1, \result=0, \old(cond)=1, x=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 3]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L10] int x=0; Loop: [L12] COND TRUE 1 [L4] COND FALSE !(!(cond)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...