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 AlwaysFluid --sifa.intern.fluid AlwaysFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/ldv-regression/test30-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-19 17:03:24,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-19 17:03:24,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-19 17:03:24,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-19 17:03:24,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-19 17:03:24,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-19 17:03:24,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-19 17:03:24,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-19 17:03:24,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-19 17:03:24,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-19 17:03:24,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-19 17:03:24,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-19 17:03:24,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-19 17:03:24,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-19 17:03:24,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-19 17:03:24,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-19 17:03:24,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-19 17:03:24,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-19 17:03:24,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-19 17:03:24,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-19 17:03:24,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-19 17:03:24,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-19 17:03:24,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-19 17:03:24,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-19 17:03:24,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-19 17:03:24,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-19 17:03:24,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-19 17:03:24,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-19 17:03:24,866 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 [2019-09-19 17:03:24,887 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-19 17:03:24,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-19 17:03:24,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-19 17:03:24,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-19 17:03:24,889 INFO L138 SettingsManager]: * Use SBE=true [2019-09-19 17:03:24,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-19 17:03:24,890 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-19 17:03:24,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-19 17:03:24,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-19 17:03:24,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-19 17:03:24,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-19 17:03:24,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-19 17:03:24,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-19 17:03:24,891 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-19 17:03:24,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-19 17:03:24,892 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-19 17:03:24,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-19 17:03:24,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-19 17:03:24,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-19 17:03:24,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-19 17:03:24,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-19 17:03:24,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-19 17:03:24,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-19 17:03:24,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-19 17:03:24,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-19 17:03:24,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-19 17:03:24,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-19 17:03:24,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-19 17:03:24,894 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 -> AlwaysFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> AlwaysFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-19 17:03:24,927 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-19 17:03:24,940 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-19 17:03:24,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-19 17:03:24,947 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-19 17:03:24,947 INFO L275 PluginConnector]: CDTParser initialized [2019-09-19 17:03:24,948 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test30-1.c [2019-09-19 17:03:25,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5ce6a02b/59a982ad829047e284a60214724d9e05/FLAG7720394cf [2019-09-19 17:03:25,438 INFO L306 CDTParser]: Found 1 translation units. [2019-09-19 17:03:25,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test30-1.c [2019-09-19 17:03:25,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5ce6a02b/59a982ad829047e284a60214724d9e05/FLAG7720394cf [2019-09-19 17:03:25,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5ce6a02b/59a982ad829047e284a60214724d9e05 [2019-09-19 17:03:25,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-19 17:03:25,840 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-19 17:03:25,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-19 17:03:25,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-19 17:03:25,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-19 17:03:25,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:03:25" (1/1) ... [2019-09-19 17:03:25,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377f0a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:03:25, skipping insertion in model container [2019-09-19 17:03:25,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:03:25" (1/1) ... [2019-09-19 17:03:25,859 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-19 17:03:25,877 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-19 17:03:26,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 17:03:26,115 INFO L188 MainTranslator]: Completed pre-run [2019-09-19 17:03:26,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 17:03:26,255 INFO L192 MainTranslator]: Completed translation [2019-09-19 17:03:26,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:03:26 WrapperNode [2019-09-19 17:03:26,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-19 17:03:26,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-19 17:03:26,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-19 17:03:26,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-19 17:03:26,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:03:26" (1/1) ... [2019-09-19 17:03:26,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:03:26" (1/1) ... [2019-09-19 17:03:26,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:03:26" (1/1) ... [2019-09-19 17:03:26,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:03:26" (1/1) ... [2019-09-19 17:03:26,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:03:26" (1/1) ... [2019-09-19 17:03:26,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:03:26" (1/1) ... [2019-09-19 17:03:26,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:03:26" (1/1) ... [2019-09-19 17:03:26,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-19 17:03:26,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-19 17:03:26,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-19 17:03:26,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-19 17:03:26,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:03:26" (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 [2019-09-19 17:03:26,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-19 17:03:26,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-19 17:03:26,363 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2019-09-19 17:03:26,364 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2019-09-19 17:03:26,364 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-19 17:03:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-19 17:03:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2019-09-19 17:03:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-19 17:03:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-19 17:03:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2019-09-19 17:03:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-19 17:03:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-19 17:03:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-19 17:03:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-19 17:03:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-19 17:03:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-19 17:03:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-19 17:03:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-19 17:03:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-19 17:03:26,686 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-19 17:03:26,687 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-19 17:03:26,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:03:26 BoogieIcfgContainer [2019-09-19 17:03:26,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-19 17:03:26,689 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-19 17:03:26,689 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-19 17:03:26,689 INFO L275 PluginConnector]: Sifa initialized [2019-09-19 17:03:26,691 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:03:26" (1/1) ... [2019-09-19 17:03:26,691 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=AlwaysFluid ♦ 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=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=AlwaysFluid [2019-09-19 17:03:26,715 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-19 17:03:26,715 INFO L169 IcfgInterpreter]: Building call graph [2019-09-19 17:03:26,721 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-19 17:03:26,730 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-19 17:03:26,731 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-19 17:03:26,996 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-19 17:03:27,224 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-19 17:03:27,392 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 10 for LOIs [2019-09-19 17:03:27,545 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-19 17:03:27,545 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-19 17:03:27,547 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 37#true [2019-09-19 17:03:27,560 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-19 17:03:27,560 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-19 17:03:27,562 INFO L168 Benchmark]: Toolchain (without parser) took 1721.78 ms. Allocated memory was 141.0 MB in the beginning and 227.5 MB in the end (delta: 86.5 MB). Free memory was 86.9 MB in the beginning and 199.2 MB in the end (delta: -112.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-19 17:03:27,563 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 141.0 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-19 17:03:27,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 412.95 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 86.4 MB in the beginning and 179.2 MB in the end (delta: -92.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-09-19 17:03:27,565 INFO L168 Benchmark]: Boogie Preprocessor took 50.83 ms. Allocated memory is still 200.8 MB. Free memory was 179.2 MB in the beginning and 177.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-09-19 17:03:27,566 INFO L168 Benchmark]: RCFGBuilder took 379.23 ms. Allocated memory is still 200.8 MB. Free memory was 177.0 MB in the beginning and 159.0 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2019-09-19 17:03:27,566 INFO L168 Benchmark]: Sifa took 871.51 ms. Allocated memory was 200.8 MB in the beginning and 227.5 MB in the end (delta: 26.7 MB). Free memory was 159.0 MB in the beginning and 199.2 MB in the end (delta: -40.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-19 17:03:27,570 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 141.0 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 412.95 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 86.4 MB in the beginning and 179.2 MB in the end (delta: -92.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.83 ms. Allocated memory is still 200.8 MB. Free memory was 179.2 MB in the beginning and 177.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 379.23 ms. Allocated memory is still 200.8 MB. Free memory was 177.0 MB in the beginning and 159.0 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * Sifa took 871.51 ms. Allocated memory was 200.8 MB in the beginning and 227.5 MB in the end (delta: 26.7 MB). Free memory was 159.0 MB in the beginning and 199.2 MB in the end (delta: -40.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 833, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 12, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 8, TOOLS_POST_TIME[ms]: 518, TOOLS_POST_CALL_APPLICATIONS: 4, TOOLS_POST_CALL_TIME[ms]: 25, TOOLS_POST_RETURN_APPLICATIONS: 3, TOOLS_POST_RETURN_TIME[ms]: 22, TOOLS_QUANTIFIERELIM_APPLICATIONS: 15, TOOLS_QUANTIFIERELIM_TIME[ms]: 546, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 431, FLUID_QUERY_TIME[ms]: 0, FLUID_QUERIES: 12, FLUID_YES_ANSWERS: 12, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME[ms]: 179, DOMAIN_ALPHA_APPLICATIONS: 12, DOMAIN_ALPHA_TIME[ms]: 27, 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: 3, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME[ms]: 726, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 724, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 14, DAG_COMPRESSION_PROCESSED_NODES: 43, DAG_COMPRESSION_RETAINED_NODES: 26 - UnprovableResult [Line: 31]: 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 37#true. Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...