./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/memsafety/test-0217_true-valid-memsafety_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/memsafety/test-0217_true-valid-memsafety_false-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 6deae1cf94a35817940360d74a8fa8af1a7547c7 ............................................................................................................................................................................................................................................................................................................................ 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 0.1.24-91b1670 [2018-11-29 00:11:50,966 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-29 00:11:50,968 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-29 00:11:50,986 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-29 00:11:50,987 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-29 00:11:50,989 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-29 00:11:50,990 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-29 00:11:50,993 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-29 00:11:50,995 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-29 00:11:50,996 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-29 00:11:50,997 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-29 00:11:50,997 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-29 00:11:50,999 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-29 00:11:51,000 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-29 00:11:51,001 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-29 00:11:51,002 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-29 00:11:51,003 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-29 00:11:51,005 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-29 00:11:51,007 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-29 00:11:51,009 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-29 00:11:51,010 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-29 00:11:51,012 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-29 00:11:51,014 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-29 00:11:51,015 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-29 00:11:51,015 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-29 00:11:51,016 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-29 00:11:51,017 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-29 00:11:51,018 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-29 00:11:51,019 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-29 00:11:51,020 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-29 00:11:51,020 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-29 00:11:51,021 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-29 00:11:51,021 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-29 00:11:51,021 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-29 00:11:51,022 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-29 00:11:51,024 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-29 00:11:51,024 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-29 00:11:51,043 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-29 00:11:51,044 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-29 00:11:51,045 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-29 00:11:51,045 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-29 00:11:51,045 INFO L133 SettingsManager]: * Use SBE=true [2018-11-29 00:11:51,049 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-29 00:11:51,049 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-29 00:11:51,049 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-29 00:11:51,049 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-29 00:11:51,049 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-29 00:11:51,050 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-29 00:11:51,050 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-29 00:11:51,050 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-29 00:11:51,050 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-29 00:11:51,050 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-29 00:11:51,050 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-29 00:11:51,052 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-29 00:11:51,053 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-29 00:11:51,053 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-29 00:11:51,053 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-29 00:11:51,053 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-29 00:11:51,053 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-29 00:11:51,054 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-29 00:11:51,054 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-29 00:11:51,054 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-29 00:11:51,054 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-29 00:11:51,054 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-29 00:11:51,054 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-29 00:11:51,055 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-29 00:11:51,055 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-29 00:11:51,055 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-29 00:11:51,059 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-29 00:11:51,060 INFO L133 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 6deae1cf94a35817940360d74a8fa8af1a7547c7 [2018-11-29 00:11:51,111 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-29 00:11:51,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-29 00:11:51,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-29 00:11:51,129 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-29 00:11:51,130 INFO L276 PluginConnector]: CDTParser initialized [2018-11-29 00:11:51,131 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety/test-0217_true-valid-memsafety_false-termination.i [2018-11-29 00:11:51,194 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e891cf0a/ec9861b1504349c187f537707b0b4e0f/FLAG1aebb24a8 [2018-11-29 00:11:51,705 INFO L307 CDTParser]: Found 1 translation units. [2018-11-29 00:11:51,706 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety/test-0217_true-valid-memsafety_false-termination.i [2018-11-29 00:11:51,724 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e891cf0a/ec9861b1504349c187f537707b0b4e0f/FLAG1aebb24a8 [2018-11-29 00:11:51,982 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e891cf0a/ec9861b1504349c187f537707b0b4e0f [2018-11-29 00:11:51,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-29 00:11:51,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-29 00:11:51,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-29 00:11:51,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-29 00:11:51,993 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-29 00:11:51,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:11:51" (1/1) ... [2018-11-29 00:11:51,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f035571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:51, skipping insertion in model container [2018-11-29 00:11:51,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:11:51" (1/1) ... [2018-11-29 00:11:52,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-29 00:11:52,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-29 00:11:52,550 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-29 00:11:52,564 INFO L191 MainTranslator]: Completed pre-run [2018-11-29 00:11:52,693 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-29 00:11:52,778 INFO L195 MainTranslator]: Completed translation [2018-11-29 00:11:52,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52 WrapperNode [2018-11-29 00:11:52,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-29 00:11:52,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-29 00:11:52,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-29 00:11:52,780 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-29 00:11:52,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-29 00:11:52,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-29 00:11:52,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-29 00:11:52,859 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-29 00:11:52,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-29 00:11:52,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-29 00:11:52,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-29 00:11:52,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-29 00:11:52,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-29 00:11:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-29 00:11:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-29 00:11:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-11-29 00:11:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-11-29 00:11:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-29 00:11:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-29 00:11:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-29 00:11:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-29 00:11:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-29 00:11:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-29 00:11:53,189 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-29 00:11:53,849 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-29 00:11:53,849 INFO L280 CfgBuilder]: Removed 21 assue(true) statements. [2018-11-29 00:11:53,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:11:53 BoogieIcfgContainer [2018-11-29 00:11:53,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-29 00:11:53,852 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-29 00:11:53,852 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-29 00:11:53,856 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-29 00:11:53,857 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:11:53,858 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 12:11:51" (1/3) ... [2018-11-29 00:11:53,859 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@753e311a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:11:53, skipping insertion in model container [2018-11-29 00:11:53,860 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:11:53,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (2/3) ... [2018-11-29 00:11:53,860 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@753e311a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:11:53, skipping insertion in model container [2018-11-29 00:11:53,860 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:11:53,861 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:11:53" (3/3) ... [2018-11-29 00:11:53,864 INFO L375 chiAutomizerObserver]: Analyzing ICFG test-0217_true-valid-memsafety_false-termination.i [2018-11-29 00:11:53,916 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-29 00:11:53,916 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-29 00:11:53,916 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-29 00:11:53,917 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-29 00:11:53,917 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-29 00:11:53,917 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-29 00:11:53,917 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-29 00:11:53,917 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-29 00:11:53,917 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-29 00:11:53,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states. [2018-11-29 00:11:53,964 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2018-11-29 00:11:53,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:11:53,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:11:53,972 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-29 00:11:53,973 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-29 00:11:53,973 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-29 00:11:53,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states. [2018-11-29 00:11:53,977 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2018-11-29 00:11:53,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:11:53,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:11:53,978 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-29 00:11:53,978 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-29 00:11:53,986 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call ~#list~0.base, ~#list~0.offset := #Ultimate.alloc(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 8#L-1true havoc main_#res;havoc main_#t~ret28, main_#t~nondet27, main_#t~ret30, main_#t~nondet29, main_#t~nondet26, main_#t~nondet31, main_#t~mem32.base, main_#t~mem32.offset, main_#t~mem33.base, main_#t~mem33.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 37#L832-2true [2018-11-29 00:11:53,986 INFO L796 eck$LassoCheckResult]: Loop: 37#L832-2true assume !!(0 != main_#t~nondet26);havoc main_#t~nondet26; 14#L830-2true assume !true; 45#L832-1true assume !true; 37#L832-2true [2018-11-29 00:11:53,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:11:53,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2018-11-29 00:11:53,994 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:11:53,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:11:54,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:11:54,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:11:54,108 INFO L82 PathProgramCache]: Analyzing trace with hash 52490, now seen corresponding path program 1 times [2018-11-29 00:11:54,109 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:11:54,109 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:11:54,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:11:54,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-29 00:11:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-29 00:11:54,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-29 00:11:54,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-29 00:11:54,149 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-29 00:11:54,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-29 00:11:54,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-29 00:11:54,165 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2018-11-29 00:11:54,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-29 00:11:54,179 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2018-11-29 00:11:54,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-29 00:11:54,181 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 72 transitions. [2018-11-29 00:11:54,185 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2018-11-29 00:11:54,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 48 states and 68 transitions. [2018-11-29 00:11:54,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2018-11-29 00:11:54,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2018-11-29 00:11:54,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2018-11-29 00:11:54,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-29 00:11:54,195 INFO L705 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2018-11-29 00:11:54,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2018-11-29 00:11:54,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-11-29 00:11:54,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-29 00:11:54,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2018-11-29 00:11:54,234 INFO L728 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2018-11-29 00:11:54,234 INFO L608 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2018-11-29 00:11:54,234 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-29 00:11:54,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 68 transitions. [2018-11-29 00:11:54,236 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2018-11-29 00:11:54,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:11:54,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:11:54,237 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-29 00:11:54,237 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-29 00:11:54,237 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call ~#list~0.base, ~#list~0.offset := #Ultimate.alloc(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 138#L-1 havoc main_#res;havoc main_#t~ret28, main_#t~nondet27, main_#t~ret30, main_#t~nondet29, main_#t~nondet26, main_#t~nondet31, main_#t~mem32.base, main_#t~mem32.offset, main_#t~mem33.base, main_#t~mem33.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 139#L832-2 [2018-11-29 00:11:54,237 INFO L796 eck$LassoCheckResult]: Loop: 139#L832-2 assume !!(0 != main_#t~nondet26);havoc main_#t~nondet26; 116#L830-2 assume !(0 != main_#t~nondet27);havoc main_#t~nondet27; 123#L832-1 assume !(0 != main_#t~nondet29);havoc main_#t~nondet29; 139#L832-2 [2018-11-29 00:11:54,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:11:54,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2018-11-29 00:11:54,238 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:11:54,238 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:11:54,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:11:54,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:11:54,257 INFO L82 PathProgramCache]: Analyzing trace with hash 49962, now seen corresponding path program 1 times [2018-11-29 00:11:54,257 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:11:54,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:11:54,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,259 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-29 00:11:54,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:11:54,271 INFO L82 PathProgramCache]: Analyzing trace with hash 37288712, now seen corresponding path program 1 times [2018-11-29 00:11:54,271 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:11:54,271 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:11:54,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:11:54,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,655 WARN L180 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-11-29 00:11:54,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 12:11:54 BoogieIcfgContainer [2018-11-29 00:11:54,762 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-29 00:11:54,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-29 00:11:54,763 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-29 00:11:54,763 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-29 00:11:54,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:11:53" (3/4) ... [2018-11-29 00:11:54,767 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-29 00:11:54,807 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-29 00:11:54,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-29 00:11:54,808 INFO L168 Benchmark]: Toolchain (without parser) took 2821.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -80.5 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,810 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-29 00:11:54,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.56 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,812 INFO L168 Benchmark]: Boogie Preprocessor took 64.90 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. [2018-11-29 00:11:54,813 INFO L168 Benchmark]: RCFGBuilder took 927.43 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: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,814 INFO L168 Benchmark]: BuchiAutomizer took 910.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,814 INFO L168 Benchmark]: Witness Printer took 44.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,825 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 789.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.56 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.90 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 927.43 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: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 910.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * Witness Printer took 44.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 48 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 48 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 829]: 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 {cursor=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@327cd1ba=0, \result=0, end_point=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@6b63daa2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16cdbfd6=0, NULL=0, list=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@6b63daa2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@720f7ac1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@720f7ac1=0, list=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@561eb98=0, next=0, next=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3de87559=0, cursor=0, direction=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f63ee8a=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fbc269c=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 829]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L828] static list_t list; Loop: [L829] COND TRUE __VERIFIER_nondet_int() [L830] COND FALSE !(__VERIFIER_nondet_int()) [L832] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...