./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/memsafety/test-0218.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/memsafety/test-0218.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 6f18184220956fe7b92d880dad06de43e18c04f3 ............................................................................................................................................................................................................................................................................................................................ 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-f6fb2bb [2019-11-19 20:08:28,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:08:28,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:08:28,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:08:28,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:08:28,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:08:28,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:08:28,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:08:28,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:08:28,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:08:28,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:08:28,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:08:28,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:08:28,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:08:28,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:08:28,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:08:28,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:08:28,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:08:28,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:08:28,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:08:28,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:08:28,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:08:28,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:08:28,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:08:28,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:08:28,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:08:28,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:08:28,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:08:28,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:08:28,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:08:28,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:08:28,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:08:28,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:08:28,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:08:28,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:08:28,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:08:28,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:08:28,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:08:28,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:08:28,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:08:28,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:08:28,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:08:28,881 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:08:28,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:08:28,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:08:28,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:08:28,885 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:08:28,886 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:08:28,886 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:08:28,886 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:08:28,886 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:08:28,887 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:08:28,888 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:08:28,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:08:28,889 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:08:28,889 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:08:28,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:08:28,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:08:28,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:08:28,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:08:28,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:08:28,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:08:28,891 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:08:28,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:08:28,891 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:08:28,892 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:08:28,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:08:28,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:08:28,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:08:28,893 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:08:28,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:08:28,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:08:28,894 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:08:28,896 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:08:28,896 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 -> /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 -> 6f18184220956fe7b92d880dad06de43e18c04f3 [2019-11-19 20:08:29,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:08:29,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:08:29,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:08:29,213 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:08:29,214 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:08:29,215 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0218.i [2019-11-19 20:08:29,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b6452a4c/0d6db55c1c2d4c088228773d7396b7b9/FLAGb9fba7132 [2019-11-19 20:08:29,866 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:08:29,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0218.i [2019-11-19 20:08:29,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b6452a4c/0d6db55c1c2d4c088228773d7396b7b9/FLAGb9fba7132 [2019-11-19 20:08:30,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b6452a4c/0d6db55c1c2d4c088228773d7396b7b9 [2019-11-19 20:08:30,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:08:30,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:08:30,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:08:30,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:08:30,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:08:30,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:30" (1/1) ... [2019-11-19 20:08:30,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dced0ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30, skipping insertion in model container [2019-11-19 20:08:30,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:30" (1/1) ... [2019-11-19 20:08:30,128 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:08:30,192 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:08:30,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:08:30,665 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:08:30,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:08:30,796 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:08:30,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30 WrapperNode [2019-11-19 20:08:30,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:08:30,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:08:30,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:08:30,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:08:30,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30" (1/1) ... [2019-11-19 20:08:30,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30" (1/1) ... [2019-11-19 20:08:30,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:08:30,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:08:30,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:08:30,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:08:30,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30" (1/1) ... [2019-11-19 20:08:30,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30" (1/1) ... [2019-11-19 20:08:30,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30" (1/1) ... [2019-11-19 20:08:30,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30" (1/1) ... [2019-11-19 20:08:30,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30" (1/1) ... [2019-11-19 20:08:30,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30" (1/1) ... [2019-11-19 20:08:30,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30" (1/1) ... [2019-11-19 20:08:30,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:08:30,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:08:30,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:08:30,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:08:30,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30" (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 [2019-11-19 20:08:30,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-19 20:08:30,995 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-19 20:08:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 20:08:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-19 20:08:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:08:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 20:08:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 20:08:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-19 20:08:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:08:30,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:08:31,197 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-19 20:08:31,555 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:08:31,555 INFO L285 CfgBuilder]: Removed 21 assume(true) statements. [2019-11-19 20:08:31,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:31 BoogieIcfgContainer [2019-11-19 20:08:31,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:08:31,557 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:08:31,557 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:08:31,561 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:08:31,562 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:31,562 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:08:30" (1/3) ... [2019-11-19 20:08:31,563 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40a1204a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:08:31, skipping insertion in model container [2019-11-19 20:08:31,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:31,563 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:30" (2/3) ... [2019-11-19 20:08:31,564 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40a1204a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:08:31, skipping insertion in model container [2019-11-19 20:08:31,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:31,564 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:31" (3/3) ... [2019-11-19 20:08:31,568 INFO L371 chiAutomizerObserver]: Analyzing ICFG test-0218.i [2019-11-19 20:08:31,609 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:08:31,609 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:08:31,609 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:08:31,609 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:08:31,610 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:08:31,610 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:08:31,610 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:08:31,610 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:08:31,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states. [2019-11-19 20:08:31,649 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2019-11-19 20:08:31,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:31,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:31,655 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 20:08:31,656 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:08:31,656 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:08:31,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states. [2019-11-19 20:08:31,660 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2019-11-19 20:08:31,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:31,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:31,661 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 20:08:31,661 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:08:31,668 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.allocOnStack(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); 7#L-1true havoc main_#res;havoc main_#t~ret30, main_#t~nondet29, main_#t~ret32, main_#t~nondet31, main_#t~nondet28, main_#t~nondet33, main_#t~mem34.base, main_#t~mem34.offset, main_#t~mem35.base, main_#t~mem35.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 36#L715-2true [2019-11-19 20:08:31,669 INFO L796 eck$LassoCheckResult]: Loop: 36#L715-2true assume !!(0 != main_#t~nondet28);havoc main_#t~nondet28; 13#L713-2true assume !true; 44#L715-1true assume !true; 36#L715-2true [2019-11-19 20:08:31,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:31,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2019-11-19 20:08:31,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:31,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110618257] [2019-11-19 20:08:31,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:31,815 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:31,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:31,817 INFO L82 PathProgramCache]: Analyzing trace with hash 52490, now seen corresponding path program 1 times [2019-11-19 20:08:31,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:31,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637803818] [2019-11-19 20:08:31,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:31,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:31,856 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637803818] [2019-11-19 20:08:31,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:08:31,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 20:08:31,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325327022] [2019-11-19 20:08:31,866 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:08:31,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:08:31,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 20:08:31,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 20:08:31,889 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2019-11-19 20:08:31,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:08:31,905 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2019-11-19 20:08:31,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 20:08:31,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 72 transitions. [2019-11-19 20:08:31,910 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2019-11-19 20:08:31,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 48 states and 68 transitions. [2019-11-19 20:08:31,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2019-11-19 20:08:31,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2019-11-19 20:08:31,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2019-11-19 20:08:31,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:31,921 INFO L688 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2019-11-19 20:08:31,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2019-11-19 20:08:31,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2019-11-19 20:08:31,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-19 20:08:31,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2019-11-19 20:08:31,963 INFO L711 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2019-11-19 20:08:31,963 INFO L591 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2019-11-19 20:08:31,963 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:08:31,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 68 transitions. [2019-11-19 20:08:31,965 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2019-11-19 20:08:31,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:31,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:31,965 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 20:08:31,966 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:08:31,966 INFO L794 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 135#L-1 havoc main_#res;havoc main_#t~ret30, main_#t~nondet29, main_#t~ret32, main_#t~nondet31, main_#t~nondet28, main_#t~nondet33, main_#t~mem34.base, main_#t~mem34.offset, main_#t~mem35.base, main_#t~mem35.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 136#L715-2 [2019-11-19 20:08:31,966 INFO L796 eck$LassoCheckResult]: Loop: 136#L715-2 assume !!(0 != main_#t~nondet28);havoc main_#t~nondet28; 113#L713-2 assume !(0 != main_#t~nondet29);havoc main_#t~nondet29; 119#L715-1 assume !(0 != main_#t~nondet31);havoc main_#t~nondet31; 136#L715-2 [2019-11-19 20:08:31,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:31,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2019-11-19 20:08:31,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:31,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381932710] [2019-11-19 20:08:31,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:31,991 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:31,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:31,992 INFO L82 PathProgramCache]: Analyzing trace with hash 49962, now seen corresponding path program 1 times [2019-11-19 20:08:31,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:31,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161688723] [2019-11-19 20:08:31,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,003 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:32,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:32,004 INFO L82 PathProgramCache]: Analyzing trace with hash 37288712, now seen corresponding path program 1 times [2019-11-19 20:08:32,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:32,004 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287146459] [2019-11-19 20:08:32,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,027 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:32,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:08:32 BoogieIcfgContainer [2019-11-19 20:08:32,209 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:08:32,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:08:32,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:08:32,211 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:08:32,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:31" (3/4) ... [2019-11-19 20:08:32,216 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 20:08:32,276 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:08:32,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:08:32,285 INFO L168 Benchmark]: Toolchain (without parser) took 2164.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -81.0 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:32,287 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:08:32,288 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:32,289 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.69 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. [2019-11-19 20:08:32,291 INFO L168 Benchmark]: Boogie Preprocessor took 52.63 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:32,292 INFO L168 Benchmark]: RCFGBuilder took 634.15 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: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:32,296 INFO L168 Benchmark]: BuchiAutomizer took 651.90 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: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:32,297 INFO L168 Benchmark]: Witness Printer took 67.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:08:32,304 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 683.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.69 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 52.63 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 634.15 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: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 651.90 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: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. * Witness Printer took 67.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program 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 0.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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: 712]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9404} State at position 1 is {cursor=0, NULL=0, \result=0, end_point=0, NULL=9404, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22a50357=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f973767=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@7b0b184f=0, NULL=0, list=9403, list=0, next=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6447a8a4=12, next=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@696dccf5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@1d0cfdf0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@1d0cfdf0=0, cursor=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e4d6487=0, direction=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@7b0b184f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23185ebf=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 712]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L711] static list_t list; Loop: [L712] COND TRUE __VERIFIER_nondet_int() [L713] COND FALSE !(__VERIFIER_nondet_int()) [L715] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...