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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f3d0b09 [2019-08-08 11:01:37,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-08 11:01:37,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-08 11:01:37,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-08 11:01:37,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-08 11:01:37,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-08 11:01:37,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-08 11:01:37,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-08 11:01:37,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-08 11:01:37,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-08 11:01:37,293 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-08 11:01:37,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-08 11:01:37,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-08 11:01:37,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-08 11:01:37,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-08 11:01:37,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-08 11:01:37,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-08 11:01:37,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-08 11:01:37,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-08 11:01:37,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-08 11:01:37,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-08 11:01:37,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-08 11:01:37,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-08 11:01:37,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-08 11:01:37,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-08 11:01:37,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-08 11:01:37,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-08 11:01:37,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-08 11:01:37,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-08 11:01:37,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-08 11:01:37,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-08 11:01:37,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-08 11:01:37,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-08 11:01:37,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-08 11:01:37,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-08 11:01:37,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-08 11:01:37,318 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 [2019-08-08 11:01:37,333 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-08 11:01:37,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-08 11:01:37,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-08 11:01:37,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-08 11:01:37,334 INFO L138 SettingsManager]: * Use SBE=true [2019-08-08 11:01:37,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-08 11:01:37,335 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-08 11:01:37,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-08 11:01:37,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-08 11:01:37,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-08 11:01:37,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-08 11:01:37,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-08 11:01:37,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-08 11:01:37,336 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-08 11:01:37,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-08 11:01:37,337 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-08 11:01:37,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-08 11:01:37,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-08 11:01:37,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-08 11:01:37,338 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-08 11:01:37,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-08 11:01:37,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-08 11:01:37,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-08 11:01:37,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-08 11:01:37,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-08 11:01:37,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-08 11:01:37,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-08 11:01:37,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-08 11:01:37,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-08 11:01:37,367 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-08 11:01:37,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-08 11:01:37,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-08 11:01:37,384 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-08 11:01:37,384 INFO L275 PluginConnector]: CDTParser initialized [2019-08-08 11:01:37,385 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label47.c [2019-08-08 11:01:37,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ad5ac9c/992c4e3518ac49efb0d188b9b64a6640/FLAGb178e157a [2019-08-08 11:01:38,123 INFO L306 CDTParser]: Found 1 translation units. [2019-08-08 11:01:38,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label47.c [2019-08-08 11:01:38,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ad5ac9c/992c4e3518ac49efb0d188b9b64a6640/FLAGb178e157a [2019-08-08 11:01:38,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ad5ac9c/992c4e3518ac49efb0d188b9b64a6640 [2019-08-08 11:01:38,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-08 11:01:38,330 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-08 11:01:38,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-08 11:01:38,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-08 11:01:38,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-08 11:01:38,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:01:38" (1/1) ... [2019-08-08 11:01:38,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f929e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:01:38, skipping insertion in model container [2019-08-08 11:01:38,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:01:38" (1/1) ... [2019-08-08 11:01:38,348 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-08 11:01:38,424 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-08 11:01:39,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:01:39,250 INFO L188 MainTranslator]: Completed pre-run [2019-08-08 11:01:39,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:01:39,764 INFO L192 MainTranslator]: Completed translation [2019-08-08 11:01:39,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:01:39 WrapperNode [2019-08-08 11:01:39,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-08 11:01:39,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-08 11:01:39,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-08 11:01:39,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-08 11:01:39,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:01:39" (1/1) ... [2019-08-08 11:01:39,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:01:39" (1/1) ... [2019-08-08 11:01:39,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:01:39" (1/1) ... [2019-08-08 11:01:39,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:01:39" (1/1) ... [2019-08-08 11:01:39,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:01:39" (1/1) ... [2019-08-08 11:01:39,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:01:39" (1/1) ... [2019-08-08 11:01:39,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:01:39" (1/1) ... [2019-08-08 11:01:39,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-08 11:01:39,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-08 11:01:39,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-08 11:01:39,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-08 11:01:39,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:01:39" (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 [2019-08-08 11:01:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-08 11:01:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-08 11:01:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-08 11:01:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-08-08 11:01:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-08 11:01:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-08 11:01:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-08-08 11:01:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-08 11:01:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-08 11:01:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-08 11:01:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-08 11:01:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-08 11:01:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-08 11:01:45,301 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-08 11:01:45,301 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-08 11:01:45,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:01:45 BoogieIcfgContainer [2019-08-08 11:01:45,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-08 11:01:45,304 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-08 11:01:45,304 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-08 11:01:45,304 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-08 11:01:45,305 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:01:45" (1/1) ... [2019-08-08 11:01:45,318 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-08 11:01:45,320 INFO L155 IcfgInterpreter]: Building call graph [2019-08-08 11:01:45,333 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-08 11:01:45,341 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-08 11:01:45,342 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-08 11:01:45,389 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 39 [2019-08-08 11:02:23,358 INFO L185 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 13 [2019-08-08 11:02:23,480 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-08 11:02:23,480 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-08 11:02:23,482 INFO L179 IcfgInterpreter]: Location calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 1044754#(and (<= (+ ~a18~0 156) 0) (= ~a12~0 7) (= ~a15~0 3) (= ~a16~0 10)) [2019-08-08 11:02:23,483 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-08 11:02:23,490 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-08 11:02:23,493 INFO L168 Benchmark]: Toolchain (without parser) took 45162.22 ms. Allocated memory was 136.8 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 80.0 MB in the beginning and 541.0 MB in the end (delta: -461.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2019-08-08 11:02:23,494 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 102.9 MB in the beginning and 102.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-08 11:02:23,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1432.57 ms. Allocated memory was 136.8 MB in the beginning and 216.5 MB in the end (delta: 79.7 MB). Free memory was 79.8 MB in the beginning and 166.5 MB in the end (delta: -86.7 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. [2019-08-08 11:02:23,496 INFO L168 Benchmark]: Boogie Preprocessor took 196.57 ms. Allocated memory is still 216.5 MB. Free memory was 166.5 MB in the beginning and 156.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-08-08 11:02:23,497 INFO L168 Benchmark]: RCFGBuilder took 5339.91 ms. Allocated memory was 216.5 MB in the beginning and 284.2 MB in the end (delta: 67.6 MB). Free memory was 156.1 MB in the beginning and 96.1 MB in the end (delta: 59.9 MB). Peak memory consumption was 127.6 MB. Max. memory is 7.1 GB. [2019-08-08 11:02:23,498 INFO L168 Benchmark]: Symbolic Interpretation took 38186.66 ms. Allocated memory was 284.2 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 96.1 MB in the beginning and 541.0 MB in the end (delta: -444.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2019-08-08 11:02:23,503 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 202]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Interpreter reached this location of interest. Location might be reachable.. Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 102.9 MB in the beginning and 102.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1432.57 ms. Allocated memory was 136.8 MB in the beginning and 216.5 MB in the end (delta: 79.7 MB). Free memory was 79.8 MB in the beginning and 166.5 MB in the end (delta: -86.7 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 196.57 ms. Allocated memory is still 216.5 MB. Free memory was 166.5 MB in the beginning and 156.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5339.91 ms. Allocated memory was 216.5 MB in the beginning and 284.2 MB in the end (delta: 67.6 MB). Free memory was 156.1 MB in the beginning and 96.1 MB in the end (delta: 59.9 MB). Peak memory consumption was 127.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 38186.66 ms. Allocated memory was 284.2 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 96.1 MB in the beginning and 541.0 MB in the end (delta: -444.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...