java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.logsizewrapperfluid.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK --sifa.max.parallel.explicit.values 2 --sifa.sizelimitfluid.max.disjunctions 4 -i ../../../trunk/examples/svcomp/ldv-regression/test04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-ba7495b [2019-09-25 17:03:58,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-25 17:03:58,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-25 17:03:58,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-25 17:03:58,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-25 17:03:58,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-25 17:03:58,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-25 17:03:58,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-25 17:03:58,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-25 17:03:58,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-25 17:03:58,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-25 17:03:58,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-25 17:03:58,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-25 17:03:58,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-25 17:03:58,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-25 17:03:58,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-25 17:03:58,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-25 17:03:58,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-25 17:03:58,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-25 17:03:58,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-25 17:03:58,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-25 17:03:58,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-25 17:03:58,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-25 17:03:59,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-25 17:03:59,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-25 17:03:59,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-25 17:03:59,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-25 17:03:59,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-25 17:03:59,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-25 17:03:59,029 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-25 17:03:59,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-25 17:03:59,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-25 17:03:59,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-25 17:03:59,031 INFO L138 SettingsManager]: * Use SBE=true [2019-09-25 17:03:59,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-25 17:03:59,032 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-25 17:03:59,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-25 17:03:59,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-25 17:03:59,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-25 17:03:59,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-25 17:03:59,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-25 17:03:59,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-25 17:03:59,033 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-25 17:03:59,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-25 17:03:59,034 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-25 17:03:59,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-25 17:03:59,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-25 17:03:59,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-25 17:03:59,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-25 17:03:59,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-25 17:03:59,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-25 17:03:59,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-25 17:03:59,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-25 17:03:59,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-25 17:03:59,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-25 17:03:59,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-25 17:03:59,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-25 17:03:59,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: LogSizeWrapperFluid Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Max. Parallel Explicit Values -> 2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: SizeLimitFluid Max. Disjunctions -> 4 [2019-09-25 17:03:59,080 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-25 17:03:59,094 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-25 17:03:59,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-25 17:03:59,104 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-25 17:03:59,104 INFO L275 PluginConnector]: CDTParser initialized [2019-09-25 17:03:59,106 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test04.c [2019-09-25 17:03:59,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7ac073d/0be6a25ee8b0467a9f196739e8eb671a/FLAG130ed39aa [2019-09-25 17:03:59,654 INFO L306 CDTParser]: Found 1 translation units. [2019-09-25 17:03:59,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test04.c [2019-09-25 17:03:59,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7ac073d/0be6a25ee8b0467a9f196739e8eb671a/FLAG130ed39aa [2019-09-25 17:04:00,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7ac073d/0be6a25ee8b0467a9f196739e8eb671a [2019-09-25 17:04:00,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-25 17:04:00,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-25 17:04:00,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-25 17:04:00,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-25 17:04:00,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-25 17:04:00,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:04:00" (1/1) ... [2019-09-25 17:04:00,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@adcb3cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:00, skipping insertion in model container [2019-09-25 17:04:00,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:04:00" (1/1) ... [2019-09-25 17:04:00,074 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-25 17:04:00,087 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-25 17:04:00,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-25 17:04:00,295 INFO L188 MainTranslator]: Completed pre-run [2019-09-25 17:04:00,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-25 17:04:00,331 INFO L192 MainTranslator]: Completed translation [2019-09-25 17:04:00,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:00 WrapperNode [2019-09-25 17:04:00,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-25 17:04:00,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-25 17:04:00,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-25 17:04:00,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-25 17:04:00,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:00" (1/1) ... [2019-09-25 17:04:00,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:00" (1/1) ... [2019-09-25 17:04:00,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:00" (1/1) ... [2019-09-25 17:04:00,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:00" (1/1) ... [2019-09-25 17:04:00,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:00" (1/1) ... [2019-09-25 17:04:00,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:00" (1/1) ... [2019-09-25 17:04:00,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:00" (1/1) ... [2019-09-25 17:04:00,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-25 17:04:00,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-25 17:04:00,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-25 17:04:00,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-25 17:04:00,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:04:00" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-25 17:04:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-25 17:04:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-25 17:04:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-25 17:04:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-25 17:04:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-25 17:04:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-25 17:04:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-25 17:04:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-25 17:04:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-25 17:04:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-25 17:04:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-25 17:04:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-25 17:04:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-25 17:04:00,815 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-25 17:04:00,815 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-25 17:04:00,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:04:00 BoogieIcfgContainer [2019-09-25 17:04:00,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-25 17:04:00,817 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-25 17:04:00,818 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-25 17:04:00,818 INFO L275 PluginConnector]: Sifa initialized [2019-09-25 17:04:00,822 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:04:00" (1/1) ... [2019-09-25 17:04:00,823 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=ExplicitValueDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=4 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-09-25 17:04:00,846 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-25 17:04:00,846 INFO L169 IcfgInterpreter]: Building call graph [2019-09-25 17:04:00,854 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-25 17:04:00,863 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-25 17:04:00,865 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-25 17:04:01,015 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 17 for LOIs [2019-09-25 17:04:01,238 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-25 17:04:01,238 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-25 17:04:01,240 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 22#(and (= |#NULL.base| 0) (= |main_~#b~0.offset| 0) (= |#NULL.offset| 0) (= |main_~#a~0.offset| 0)) [2019-09-25 17:04:01,253 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-25 17:04:01,253 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-25 17:04:01,256 INFO L168 Benchmark]: Toolchain (without parser) took 1203.35 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 87.1 MB in the beginning and 141.2 MB in the end (delta: -54.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2019-09-25 17:04:01,257 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-25 17:04:01,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.31 ms. Allocated memory is still 139.5 MB. Free memory was 86.7 MB in the beginning and 77.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-25 17:04:01,259 INFO L168 Benchmark]: Boogie Preprocessor took 120.08 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 77.2 MB in the beginning and 177.0 MB in the end (delta: -99.8 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-09-25 17:04:01,260 INFO L168 Benchmark]: RCFGBuilder took 364.73 ms. Allocated memory is still 199.2 MB. Free memory was 176.4 MB in the beginning and 161.5 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2019-09-25 17:04:01,261 INFO L168 Benchmark]: Sifa took 436.16 ms. Allocated memory is still 199.2 MB. Free memory was 161.5 MB in the beginning and 141.2 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-09-25 17:04:01,265 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.31 ms. Allocated memory is still 139.5 MB. Free memory was 86.7 MB in the beginning and 77.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.08 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 77.2 MB in the beginning and 177.0 MB in the end (delta: -99.8 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 364.73 ms. Allocated memory is still 199.2 MB. Free memory was 176.4 MB in the beginning and 161.5 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * Sifa took 436.16 ms. Allocated memory is still 199.2 MB. Free memory was 161.5 MB in the beginning and 141.2 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 394, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 9, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 6, TOOLS_POST_TIME[ms]: 100, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME[ms]: 171, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 6, TOOLS_QUANTIFIERELIM_APPLICATIONS: 11, TOOLS_QUANTIFIERELIM_TIME[ms]: 263, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 151, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 9, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME[ms]: 54, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 0, DOMAIN_ISBOTTOM_TIME[ms]: 0, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 0, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 107, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 107, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 4, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 11, DAG_COMPRESSION_PROCESSED_NODES: 34, DAG_COMPRESSION_RETAINED_NODES: 22 - UnprovableResult [Line: 22]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 22#(and (= |#NULL.base| 0) (= |main_~#b~0.offset| 0) (= |#NULL.offset| 0) (= |main_~#a~0.offset| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...