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/loops/n.c40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 11:14:21,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 11:14:21,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 11:14:21,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-05 11:14:21,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-05 11:14:21,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-05 11:14:21,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-05 11:14:21,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-05 11:14:21,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-05 11:14:21,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-05 11:14:21,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-05 11:14:21,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-05 11:14:21,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 11:14:21,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 11:14:21,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 11:14:21,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 11:14:21,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 11:14:21,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 11:14:21,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 11:14:21,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 11:14:21,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 11:14:21,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 11:14:21,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 11:14:21,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 11:14:21,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-05 11:14:21,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-05 11:14:21,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-05 11:14:21,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-05 11:14:21,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-05 11:14:21,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-05 11:14:21,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-05 11:14:21,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-05 11:14:21,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-05 11:14:21,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 11:14:21,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 11:14:21,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 11:14:21,158 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 11:14:21,175 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 11:14:21,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 11:14:21,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-05 11:14:21,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-05 11:14:21,177 INFO L138 SettingsManager]: * Use SBE=true [2019-09-05 11:14:21,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 11:14:21,177 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 11:14:21,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-05 11:14:21,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 11:14:21,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 11:14:21,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 11:14:21,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 11:14:21,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 11:14:21,178 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 11:14:21,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 11:14:21,179 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-05 11:14:21,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 11:14:21,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 11:14:21,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 11:14:21,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-05 11:14:21,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-05 11:14:21,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 11:14:21,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 11:14:21,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 11:14:21,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-05 11:14:21,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-05 11:14:21,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 11:14:21,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 11:14:21,181 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 11:14:21,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 11:14:21,224 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 11:14:21,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 11:14:21,229 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 11:14:21,230 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 11:14:21,230 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c40.c [2019-09-05 11:14:21,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c1eff298/623bd78d7bdc41818317db230cf38ab4/FLAG36a084da6 [2019-09-05 11:14:21,769 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 11:14:21,772 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c [2019-09-05 11:14:21,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c1eff298/623bd78d7bdc41818317db230cf38ab4/FLAG36a084da6 [2019-09-05 11:14:22,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c1eff298/623bd78d7bdc41818317db230cf38ab4 [2019-09-05 11:14:22,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 11:14:22,164 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 11:14:22,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 11:14:22,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 11:14:22,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 11:14:22,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 11:14:22" (1/1) ... [2019-09-05 11:14:22,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d26225c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:14:22, skipping insertion in model container [2019-09-05 11:14:22,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 11:14:22" (1/1) ... [2019-09-05 11:14:22,182 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 11:14:22,202 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 11:14:22,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 11:14:22,461 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 11:14:22,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 11:14:22,516 INFO L192 MainTranslator]: Completed translation [2019-09-05 11:14:22,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:14:22 WrapperNode [2019-09-05 11:14:22,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 11:14:22,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 11:14:22,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 11:14:22,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 11:14:22,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:14:22" (1/1) ... [2019-09-05 11:14:22,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:14:22" (1/1) ... [2019-09-05 11:14:22,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:14:22" (1/1) ... [2019-09-05 11:14:22,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:14:22" (1/1) ... [2019-09-05 11:14:22,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:14:22" (1/1) ... [2019-09-05 11:14:22,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:14:22" (1/1) ... [2019-09-05 11:14:22,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:14:22" (1/1) ... [2019-09-05 11:14:22,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 11:14:22,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 11:14:22,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 11:14:22,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 11:14:22,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:14:22" (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 11:14:22,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 11:14:22,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 11:14:22,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 11:14:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 11:14:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-05 11:14:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 11:14:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-05 11:14:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-05 11:14:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 11:14:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-05 11:14:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 11:14:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-05 11:14:22,981 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 11:14:22,981 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-05 11:14:22,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 11:14:22 BoogieIcfgContainer [2019-09-05 11:14:22,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 11:14:22,983 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-05 11:14:22,983 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-05 11:14:22,984 INFO L275 PluginConnector]: Sifa initialized [2019-09-05 11:14:22,985 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 11:14:22" (1/1) ... [2019-09-05 11:14:22,985 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 11:14:23,009 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-05 11:14:23,010 INFO L169 IcfgInterpreter]: Building call graph [2019-09-05 11:14:23,026 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-05 11:14:23,049 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-05 11:14:23,051 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-05 11:14:23,167 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2019-09-05 11:14:23,361 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-05 11:14:23,361 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-05 11:14:23,366 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 25#(and (<= 0 |old(~k~0)|) (<= |#NULL.base| 0) (<= |old(~k~0)| 0) (<= 0 |~#x~0.offset|) (<= |~#y~0.offset| 0) (<= |old(~i~0)| 0) (<= 0 |#NULL.base|) (<= |~#x~0.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |~#y~0.offset|) (<= ~j~0 0) (<= ~k~0 2147483647) (<= 0 |old(~i~0)|) (<= 0 ~j~0) (<= 0 ~i~0) (<= 0 ~k~0)) [2019-09-05 11:14:23,383 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-05 11:14:23,383 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-05 11:14:23,385 INFO L168 Benchmark]: Toolchain (without parser) took 1220.30 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 87.1 MB in the beginning and 144.7 MB in the end (delta: -57.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-09-05 11:14:23,386 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 131.1 MB. Free memory was 105.3 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-05 11:14:23,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.60 ms. Allocated memory is still 131.1 MB. Free memory was 86.9 MB in the beginning and 76.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-09-05 11:14:23,388 INFO L168 Benchmark]: Boogie Preprocessor took 156.15 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 76.6 MB in the beginning and 174.3 MB in the end (delta: -97.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-09-05 11:14:23,389 INFO L168 Benchmark]: RCFGBuilder took 308.19 ms. Allocated memory is still 198.7 MB. Free memory was 174.3 MB in the beginning and 160.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-09-05 11:14:23,390 INFO L168 Benchmark]: Sifa took 399.89 ms. Allocated memory is still 198.7 MB. Free memory was 160.7 MB in the beginning and 144.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-05 11:14:23,393 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 131.1 MB. Free memory was 105.3 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 351.60 ms. Allocated memory is still 131.1 MB. Free memory was 86.9 MB in the beginning and 76.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.15 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 76.6 MB in the beginning and 174.3 MB in the end (delta: -97.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 308.19 ms. Allocated memory is still 198.7 MB. Free memory was 174.3 MB in the beginning and 160.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * Sifa took 399.89 ms. Allocated memory is still 198.7 MB. Free memory was 160.7 MB in the beginning and 144.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions 354 OVERALL_TIME[ms], 2 ICFG_INTERPRETER_ENTERED_PROCEDURES, 17 DAG_INTERPRETER_EARLY_EXIT_QUERIES, 0 DAG_INTERPRETER_EARLY_EXITS, 14 TOOLS_POST_APPLICATIONS, 154 TOOLS_POST_TIME[ms], 2 TOOLS_POST_CALL_APPLICATIONS, 26 TOOLS_POST_CALL_TIME[ms], 1 TOOLS_POST_RETURN_APPLICATIONS, 5 TOOLS_POST_RETURN_TIME[ms], 166 TOOLS_QUANTIFIERELIM_TIME[ms], 5 FLUID_QUERY_TIME[ms], 19 FLUID_QUERIES, 0 FLUID_YES_ANSWERS, 5 DOMAIN_JOIN_APPLICATIONS, 31 DOMAIN_JOIN_TIME[ms], 0 DOMAIN_ALPHA_APPLICATIONS, 0 DOMAIN_ALPHA_TIME[ms], 1 DOMAIN_WIDEN_APPLICATIONS, 7 DOMAIN_WIDEN_TIME[ms], 2 DOMAIN_ISSUBSETEQ_APPLICATIONS, 6 DOMAIN_ISSUBSETEQ_TIME[ms], 1 DOMAIN_ISBOTTOM_APPLICATIONS, 2 DOMAIN_ISBOTTOM_TIME[ms], 1 LOOP_SUMMARIZER_APPLICATIONS, 1 LOOP_SUMMARIZER_CACHE_MISSES, 126 LOOP_SUMMARIZER_OVERALL_TIME[ms], 125 LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms], 2 LOOP_SUMMARIZER_FIXPOINT_ITERATIONS, 1 CALL_SUMMARIZER_APPLICATIONS, 0 CALL_SUMMARIZER_CACHE_MISSES, 31 CALL_SUMMARIZER_OVERALL_TIME[ms], 0 CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms], 8 PROCEDURE_GRAPH_BUILDER_TIME[ms], 5 PATH_EXPR_TIME[ms], 11 REGEX_TO_DAG_TIME[ms], 19 DAG_COMPRESSION_TIME[ms], 63 DAG_COMPRESSION_PROCESSED_NODES, 35 DAG_COMPRESSION_RETAINED_NODES - UnprovableResult [Line: 20]: 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 25#(and (<= 0 |old(~k~0)|) (<= |#NULL.base| 0) (<= |old(~k~0)| 0) (<= 0 |~#x~0.offset|) (<= |~#y~0.offset| 0) (<= |old(~i~0)| 0) (<= 0 |#NULL.base|) (<= |~#x~0.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |~#y~0.offset|) (<= ~j~0 0) (<= ~k~0 2147483647) (<= 0 |old(~i~0)|) (<= 0 ~j~0) (<= 0 ~i~0) (<= 0 ~k~0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...