./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/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 c28500fb39e284eb130c0904f2ebec477741685a ............................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 03:50:42,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:50:42,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:50:42,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:50:42,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:50:42,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:50:42,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:50:42,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:50:42,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:50:42,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:50:42,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:50:42,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:50:42,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:50:42,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:50:42,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:50:42,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:50:42,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:50:42,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:50:42,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:50:42,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:50:42,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:50:42,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:50:42,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:50:42,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:50:42,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:50:42,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:50:42,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:50:42,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:50:42,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:50:42,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:50:42,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:50:42,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:50:42,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:50:42,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:50:42,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:50:42,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:50:42,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:50:42,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:50:42,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:50:42,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:50:42,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:50:42,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 03:50:42,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:50:42,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:50:42,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:50:42,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:50:42,125 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:50:42,125 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 03:50:42,125 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 03:50:42,125 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 03:50:42,126 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 03:50:42,126 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 03:50:42,127 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 03:50:42,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:50:42,127 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:50:42,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 03:50:42,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:50:42,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:50:42,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:50:42,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 03:50:42,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 03:50:42,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 03:50:42,129 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:50:42,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:50:42,129 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 03:50:42,130 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:50:42,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 03:50:42,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:50:42,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:50:42,131 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 03:50:42,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:50:42,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:50:42,131 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 03:50:42,132 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 03:50:42,132 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_91518961-9b46-4119-9a09-1e4305391c68/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 -> c28500fb39e284eb130c0904f2ebec477741685a [2019-11-20 03:50:42,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:50:42,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:50:42,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:50:42,287 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:50:42,287 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:50:42,288 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/bin/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_1.c [2019-11-20 03:50:42,348 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/bin/uautomizer/data/0b3f28a09/5833d071afc24a4aad60768b990cfc4b/FLAG21424fc11 [2019-11-20 03:50:42,724 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:50:42,724 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/sv-benchmarks/c/loops/while_infinite_loop_1.c [2019-11-20 03:50:42,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/bin/uautomizer/data/0b3f28a09/5833d071afc24a4aad60768b990cfc4b/FLAG21424fc11 [2019-11-20 03:50:42,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/bin/uautomizer/data/0b3f28a09/5833d071afc24a4aad60768b990cfc4b [2019-11-20 03:50:42,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:50:42,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:50:42,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:50:42,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:50:42,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:50:42,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:50:42" (1/1) ... [2019-11-20 03:50:42,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fc88e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42, skipping insertion in model container [2019-11-20 03:50:42,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:50:42" (1/1) ... [2019-11-20 03:50:42,760 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:50:42,774 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:50:42,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:50:42,908 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:50:42,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:50:42,997 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:50:42,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42 WrapperNode [2019-11-20 03:50:42,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:50:42,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:50:42,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:50:42,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:50:43,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42" (1/1) ... [2019-11-20 03:50:43,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42" (1/1) ... [2019-11-20 03:50:43,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:50:43,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:50:43,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:50:43,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:50:43,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42" (1/1) ... [2019-11-20 03:50:43,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42" (1/1) ... [2019-11-20 03:50:43,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42" (1/1) ... [2019-11-20 03:50:43,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42" (1/1) ... [2019-11-20 03:50:43,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42" (1/1) ... [2019-11-20 03:50:43,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42" (1/1) ... [2019-11-20 03:50:43,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42" (1/1) ... [2019-11-20 03:50:43,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:50:43,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:50:43,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:50:43,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:50:43,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/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 [2019-11-20 03:50:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:50:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:50:43,265 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:50:43,265 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 03:50:43,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:50:43 BoogieIcfgContainer [2019-11-20 03:50:43,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:50:43,267 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 03:50:43,267 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 03:50:43,270 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 03:50:43,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:50:43,271 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 03:50:42" (1/3) ... [2019-11-20 03:50:43,272 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cd3669f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:50:43, skipping insertion in model container [2019-11-20 03:50:43,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:50:43,274 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:50:42" (2/3) ... [2019-11-20 03:50:43,274 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cd3669f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:50:43, skipping insertion in model container [2019-11-20 03:50:43,274 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:50:43,274 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:50:43" (3/3) ... [2019-11-20 03:50:43,282 INFO L371 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_1.c [2019-11-20 03:50:43,336 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 03:50:43,336 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 03:50:43,336 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 03:50:43,338 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:50:43,338 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:50:43,338 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 03:50:43,338 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:50:43,339 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 03:50:43,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-20 03:50:43,377 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 03:50:43,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:50:43,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:50:43,381 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 03:50:43,381 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 03:50:43,381 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 03:50:43,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-20 03:50:43,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 03:50:43,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:50:43,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:50:43,383 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 03:50:43,384 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 03:50:43,391 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~x~0;main_~x~0 := 0; 9#L4-2true [2019-11-20 03:50:43,391 INFO L796 eck$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 [2019-11-20 03:50:43,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:50:43,398 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 03:50:43,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:50:43,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705262852] [2019-11-20 03:50:43,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:50:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:50:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:50:43,482 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:50:43,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:50:43,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-11-20 03:50:43,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:50:43,485 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594659546] [2019-11-20 03:50:43,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:50:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:50:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:50:43,505 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:50:43,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:50:43,506 INFO L82 PathProgramCache]: Analyzing trace with hash 31079, now seen corresponding path program 1 times [2019-11-20 03:50:43,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:50:43,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579346268] [2019-11-20 03:50:43,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:50:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:50:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:50:43,517 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:50:43,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 03:50:43 BoogieIcfgContainer [2019-11-20 03:50:43,601 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 03:50:43,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:50:43,601 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:50:43,602 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:50:43,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:50:43" (3/4) ... [2019-11-20 03:50:43,605 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 03:50:43,639 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_91518961-9b46-4119-9a09-1e4305391c68/bin/uautomizer/witness.graphml [2019-11-20 03:50:43,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:50:43,641 INFO L168 Benchmark]: Toolchain (without parser) took 891.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:50:43,642 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-11-20 03:50:43,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 03:50:43,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.01 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. [2019-11-20 03:50:43,643 INFO L168 Benchmark]: Boogie Preprocessor took 17.81 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. [2019-11-20 03:50:43,644 INFO L168 Benchmark]: RCFGBuilder took 224.87 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: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:50:43,645 INFO L168 Benchmark]: BuchiAutomizer took 334.17 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-20 03:50:43,645 INFO L168 Benchmark]: Witness Printer took 37.88 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. [2019-11-20 03:50:43,649 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 248.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.81 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 224.87 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: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 334.17 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Witness Printer took 37.88 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: [L11] int x=0; Loop: [L13] COND TRUE 1 [L4] COND FALSE !(!(cond)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...