/usr/bin/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 CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loop-invgen/nested6.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 10:10:15,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 10:10:15,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 10:10:15,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 10:10:15,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 10:10:15,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 10:10:15,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 10:10:15,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 10:10:15,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 10:10:15,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 10:10:15,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 10:10:15,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 10:10:15,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 10:10:15,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 10:10:15,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 10:10:15,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 10:10:15,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 10:10:15,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 10:10:15,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 10:10:15,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 10:10:15,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 10:10:15,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 10:10:15,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 10:10:15,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 10:10:15,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 10:10:15,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 10:10:15,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 10:10:15,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 10:10:15,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 10:10:15,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 10:10:15,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 10:10:15,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 10:10:15,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 10:10:15,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 10:10:15,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 10:10:15,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 10:10:15,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 10:10:15,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 10:10:15,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 10:10:15,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 10:10:15,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 10:10:15,235 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 [2019-11-07 10:10:15,271 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 10:10:15,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 10:10:15,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 10:10:15,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 10:10:15,276 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 10:10:15,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 10:10:15,277 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 10:10:15,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 10:10:15,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 10:10:15,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 10:10:15,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 10:10:15,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 10:10:15,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 10:10:15,278 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 10:10:15,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 10:10:15,278 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 10:10:15,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 10:10:15,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 10:10:15,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 10:10:15,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 10:10:15,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 10:10:15,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 10:10:15,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 10:10:15,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 10:10:15,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 10:10:15,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 10:10:15,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 10:10:15,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 10:10:15,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain 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: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 10:10:15,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 10:10:15,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 10:10:15,594 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 10:10:15,596 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 10:10:15,596 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 10:10:15,597 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nested6.i [2019-11-07 10:10:15,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812f824fe/8e7102975e554c798f3d6d1d53f3bf7d/FLAG50058819c [2019-11-07 10:10:16,143 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 10:10:16,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nested6.i [2019-11-07 10:10:16,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812f824fe/8e7102975e554c798f3d6d1d53f3bf7d/FLAG50058819c [2019-11-07 10:10:16,536 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812f824fe/8e7102975e554c798f3d6d1d53f3bf7d [2019-11-07 10:10:16,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 10:10:16,547 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 10:10:16,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 10:10:16,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 10:10:16,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 10:10:16,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:10:16" (1/1) ... [2019-11-07 10:10:16,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:10:16, skipping insertion in model container [2019-11-07 10:10:16,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:10:16" (1/1) ... [2019-11-07 10:10:16,564 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 10:10:16,581 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 10:10:16,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 10:10:16,783 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 10:10:16,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 10:10:16,821 INFO L192 MainTranslator]: Completed translation [2019-11-07 10:10:16,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:10:16 WrapperNode [2019-11-07 10:10:16,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 10:10:16,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 10:10:16,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 10:10:16,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 10:10:16,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:10:16" (1/1) ... [2019-11-07 10:10:16,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:10:16" (1/1) ... [2019-11-07 10:10:16,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:10:16" (1/1) ... [2019-11-07 10:10:16,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:10:16" (1/1) ... [2019-11-07 10:10:16,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:10:16" (1/1) ... [2019-11-07 10:10:16,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:10:16" (1/1) ... [2019-11-07 10:10:16,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:10:16" (1/1) ... [2019-11-07 10:10:16,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 10:10:16,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 10:10:16,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 10:10:16,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 10:10:16,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:10:16" (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 [2019-11-07 10:10:16,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 10:10:16,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 10:10:16,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 10:10:16,977 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 10:10:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 10:10:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 10:10:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 10:10:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 10:10:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 10:10:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 10:10:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 10:10:17,231 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 10:10:17,231 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-07 10:10:17,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:10:17 BoogieIcfgContainer [2019-11-07 10:10:17,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 10:10:17,240 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-07 10:10:17,240 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-07 10:10:17,241 INFO L275 PluginConnector]: Sifa initialized [2019-11-07 10:10:17,245 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:10:17" (1/1) ... [2019-11-07 10:10:17,246 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ 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=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-11-07 10:10:17,275 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-07 10:10:17,276 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 10:10:17,284 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 10:10:17,294 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 10:10:17,295 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 10:10:17,353 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-11-07 10:10:18,231 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2019-11-07 10:10:18,232 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 10:10:18,251 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-07 10:10:18,251 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-07 10:10:18,256 INFO L168 Benchmark]: Toolchain (without parser) took 1706.40 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 103.7 MB in the beginning and 107.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 58.6 MB. Max. memory is 7.1 GB. [2019-11-07 10:10:18,257 INFO L168 Benchmark]: CDTParser took 1.19 ms. Allocated memory is still 139.5 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 10:10:18,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.86 ms. Allocated memory is still 139.5 MB. Free memory was 103.7 MB in the beginning and 94.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-11-07 10:10:18,260 INFO L168 Benchmark]: Boogie Preprocessor took 104.21 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 94.1 MB in the beginning and 181.1 MB in the end (delta: -87.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-11-07 10:10:18,262 INFO L168 Benchmark]: RCFGBuilder took 309.75 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 165.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2019-11-07 10:10:18,263 INFO L168 Benchmark]: Sifa took 1011.66 ms. Allocated memory is still 202.4 MB. Free memory was 165.7 MB in the beginning and 107.9 MB in the end (delta: 57.8 MB). Peak memory consumption was 57.8 MB. Max. memory is 7.1 GB. [2019-11-07 10:10:18,274 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19 ms. Allocated memory is still 139.5 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 273.86 ms. Allocated memory is still 139.5 MB. Free memory was 103.7 MB in the beginning and 94.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.21 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 94.1 MB in the beginning and 181.1 MB in the end (delta: -87.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 309.75 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 165.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * Sifa took 1011.66 ms. Allocated memory is still 202.4 MB. Free memory was 165.7 MB in the beginning and 107.9 MB in the end (delta: 57.8 MB). Peak memory consumption was 57.8 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]: 960, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 6, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 62, TOOLS_POST_TIME[ms]: 101, TOOLS_POST_CALL_APPLICATIONS: 22, TOOLS_POST_CALL_TIME[ms]: 139, TOOLS_POST_RETURN_APPLICATIONS: 18, TOOLS_POST_RETURN_TIME[ms]: 44, TOOLS_QUANTIFIERELIM_APPLICATIONS: 102, TOOLS_QUANTIFIERELIM_TIME[ms]: 230, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 15, FLUID_QUERY_TIME[ms]: 9, FLUID_QUERIES: 135, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 6, DOMAIN_JOIN_TIME[ms]: 151, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 9, DOMAIN_WIDEN_TIME[ms]: 341, DOMAIN_ISSUBSETEQ_APPLICATIONS: 18, DOMAIN_ISSUBSETEQ_TIME[ms]: 65, DOMAIN_ISBOTTOM_APPLICATIONS: 6, DOMAIN_ISBOTTOM_TIME[ms]: 13, LOOP_SUMMARIZER_APPLICATIONS: 9, LOOP_SUMMARIZER_CACHE_MISSES: 9, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 813, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 812, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 18, CALL_SUMMARIZER_APPLICATIONS: 18, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 61, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 60, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 19, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 17, DAG_COMPRESSION_PROCESSED_NODES: 127, DAG_COMPRESSION_RETAINED_NODES: 64 - UnprovableResult [Line: 5]: 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 190#(and (<= 0 |__VERIFIER_assert_#in~cond|) (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0)) (<= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...