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 IntervalDomain -i ../../../trunk/examples/svcomp/reducercommutativity/avg40-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-05 15:27:16,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 15:27:16,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 15:27:16,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-05 15:27:16,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-05 15:27:16,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-05 15:27:16,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-05 15:27:16,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-05 15:27:16,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-05 15:27:16,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-05 15:27:16,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-05 15:27:16,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-05 15:27:16,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 15:27:16,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 15:27:16,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 15:27:16,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 15:27:16,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 15:27:16,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 15:27:16,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 15:27:16,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 15:27:16,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 15:27:16,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 15:27:16,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 15:27:16,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 15:27:16,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-05 15:27:16,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-05 15:27:16,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-05 15:27:16,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-05 15:27:16,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-05 15:27:16,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-05 15:27:16,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-05 15:27:16,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-05 15:27:16,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-05 15:27:16,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 15:27:16,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 15:27:16,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 15:27:16,222 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 [2019-09-05 15:27:16,238 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 15:27:16,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 15:27:16,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-05 15:27:16,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-05 15:27:16,240 INFO L138 SettingsManager]: * Use SBE=true [2019-09-05 15:27:16,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 15:27:16,241 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 15:27:16,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-05 15:27:16,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 15:27:16,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 15:27:16,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 15:27:16,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 15:27:16,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 15:27:16,242 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 15:27:16,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 15:27:16,243 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-05 15:27:16,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 15:27:16,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 15:27:16,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 15:27:16,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-05 15:27:16,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-05 15:27:16,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 15:27:16,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 15:27:16,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 15:27:16,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-05 15:27:16,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-05 15:27:16,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 15:27:16,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 15:27:16,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2019-09-05 15:27:16,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 15:27:16,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 15:27:16,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 15:27:16,292 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 15:27:16,292 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 15:27:16,293 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/avg40-2.i [2019-09-05 15:27:16,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2caf32f25/7175434fd68a48c887709ef8ddff0a2d/FLAG284f60e58 [2019-09-05 15:27:16,765 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 15:27:16,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/avg40-2.i [2019-09-05 15:27:16,774 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2caf32f25/7175434fd68a48c887709ef8ddff0a2d/FLAG284f60e58 [2019-09-05 15:27:17,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2caf32f25/7175434fd68a48c887709ef8ddff0a2d [2019-09-05 15:27:17,152 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 15:27:17,154 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 15:27:17,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 15:27:17,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 15:27:17,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 15:27:17,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 03:27:17" (1/1) ... [2019-09-05 15:27:17,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5a3695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 03:27:17, skipping insertion in model container [2019-09-05 15:27:17,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 03:27:17" (1/1) ... [2019-09-05 15:27:17,171 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 15:27:17,191 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 15:27:17,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 15:27:17,420 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 15:27:17,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 15:27:17,589 INFO L192 MainTranslator]: Completed translation [2019-09-05 15:27:17,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 03:27:17 WrapperNode [2019-09-05 15:27:17,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 15:27:17,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 15:27:17,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 15:27:17,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 15:27:17,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 03:27:17" (1/1) ... [2019-09-05 15:27:17,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 03:27:17" (1/1) ... [2019-09-05 15:27:17,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 03:27:17" (1/1) ... [2019-09-05 15:27:17,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 03:27:17" (1/1) ... [2019-09-05 15:27:17,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 03:27:17" (1/1) ... [2019-09-05 15:27:17,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 03:27:17" (1/1) ... [2019-09-05 15:27:17,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 03:27:17" (1/1) ... [2019-09-05 15:27:17,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 15:27:17,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 15:27:17,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 15:27:17,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 15:27:17,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 03:27:17" (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 [2019-09-05 15:27:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 15:27:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 15:27:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure avg [2019-09-05 15:27:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 15:27:17,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 15:27:17,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-05 15:27:17,708 INFO L130 BoogieDeclarations]: Found specification of procedure avg [2019-09-05 15:27:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-05 15:27:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 15:27:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-05 15:27:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-05 15:27:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-05 15:27:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 15:27:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 15:27:18,001 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 15:27:18,002 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-05 15:27:18,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 03:27:18 BoogieIcfgContainer [2019-09-05 15:27:18,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 15:27:18,004 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-05 15:27:18,004 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-05 15:27:18,004 INFO L275 PluginConnector]: Sifa initialized [2019-09-05 15:27:18,006 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 03:27:18" (1/1) ... [2019-09-05 15:27:18,007 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=NONE ♦ Intern Fluid=SizeLimitFluid [2019-09-05 15:27:18,029 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-05 15:27:18,029 INFO L169 IcfgInterpreter]: Building call graph [2019-09-05 15:27:18,036 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-05 15:27:18,046 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-05 15:27:18,047 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-05 15:27:18,140 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 17 for LOIs [2019-09-05 15:27:18,524 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-05 15:27:18,620 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-05 15:27:18,621 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-05 15:27:18,626 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 80#(and (<= 0 (+ main_~ret2~0 2147483648)) (<= main_~ret~1 2147483647) (<= 39 main_~i~2) (<= main_~ret5~0 2147483647) (<= 0 (+ main_~ret5~0 2147483648)) (<= 40 main_~i~1) (<= main_~ret2~0 2147483647) (<= 0 (+ main_~ret~1 2147483648))) [2019-09-05 15:27:18,651 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-05 15:27:18,651 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-05 15:27:18,654 INFO L168 Benchmark]: Toolchain (without parser) took 1499.29 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.3 MB in the beginning and 121.2 MB in the end (delta: -32.8 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2019-09-05 15:27:18,656 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 133.2 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-05 15:27:18,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.33 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.9 MB in the beginning and 177.3 MB in the end (delta: -89.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-09-05 15:27:18,659 INFO L168 Benchmark]: Boogie Preprocessor took 56.10 ms. Allocated memory is still 199.8 MB. Free memory was 177.3 MB in the beginning and 175.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-09-05 15:27:18,660 INFO L168 Benchmark]: RCFGBuilder took 355.97 ms. Allocated memory is still 199.8 MB. Free memory was 175.0 MB in the beginning and 158.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-09-05 15:27:18,661 INFO L168 Benchmark]: Sifa took 648.04 ms. Allocated memory is still 199.8 MB. Free memory was 158.8 MB in the beginning and 121.2 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2019-09-05 15:27:18,664 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 133.2 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 435.33 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.9 MB in the beginning and 177.3 MB in the end (delta: -89.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.10 ms. Allocated memory is still 199.8 MB. Free memory was 177.3 MB in the beginning and 175.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 355.97 ms. Allocated memory is still 199.8 MB. Free memory was 175.0 MB in the beginning and 158.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * Sifa took 648.04 ms. Allocated memory is still 199.8 MB. Free memory was 158.8 MB in the beginning and 121.2 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 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]: 597, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 53, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 40, TOOLS_POST_TIME[ms]: 371, TOOLS_POST_CALL_APPLICATIONS: 7, TOOLS_POST_CALL_TIME[ms]: 28, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME[ms]: 8, TOOLS_QUANTIFIERELIM_TIME[ms]: 378, FLUID_QUERY_TIME[ms]: 6, FLUID_QUERIES: 59, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME[ms]: 33, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 6, DOMAIN_ISSUBSETEQ_APPLICATIONS: 10, DOMAIN_ISSUBSETEQ_TIME[ms]: 25, DOMAIN_ISBOTTOM_APPLICATIONS: 7, DOMAIN_ISBOTTOM_TIME[ms]: 12, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 210, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 209, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 59, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 32, DAG_COMPRESSION_PROCESSED_NODES: 164, DAG_COMPRESSION_RETAINED_NODES: 108 - UnprovableResult [Line: 39]: 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 80#(and (<= 0 (+ main_~ret2~0 2147483648)) (<= main_~ret~1 2147483647) (<= 39 main_~i~2) (<= main_~ret5~0 2147483647) (<= 0 (+ main_~ret5~0 2147483648)) (<= 40 main_~i~1) (<= main_~ret2~0 2147483647) (<= 0 (+ main_~ret~1 2147483648))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...