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/Problem18_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f3d0b09 [2019-08-08 11:08:19,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-08 11:08:19,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-08 11:08:19,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-08 11:08:19,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-08 11:08:19,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-08 11:08:19,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-08 11:08:19,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-08 11:08:19,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-08 11:08:19,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-08 11:08:19,544 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-08 11:08:19,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-08 11:08:19,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-08 11:08:19,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-08 11:08:19,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-08 11:08:19,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-08 11:08:19,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-08 11:08:19,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-08 11:08:19,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-08 11:08:19,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-08 11:08:19,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-08 11:08:19,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-08 11:08:19,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-08 11:08:19,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-08 11:08:19,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-08 11:08:19,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-08 11:08:19,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-08 11:08:19,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-08 11:08:19,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-08 11:08:19,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-08 11:08:19,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-08 11:08:19,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-08 11:08:19,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-08 11:08:19,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-08 11:08:19,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-08 11:08:19,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-08 11:08:19,572 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 11:08:19,586 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-08 11:08:19,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-08 11:08:19,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-08 11:08:19,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-08 11:08:19,588 INFO L138 SettingsManager]: * Use SBE=true [2019-08-08 11:08:19,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-08 11:08:19,589 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-08 11:08:19,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-08 11:08:19,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-08 11:08:19,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-08 11:08:19,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-08 11:08:19,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-08 11:08:19,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-08 11:08:19,590 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-08 11:08:19,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-08 11:08:19,590 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-08 11:08:19,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-08 11:08:19,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-08 11:08:19,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-08 11:08:19,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-08 11:08:19,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-08 11:08:19,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-08 11:08:19,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-08 11:08:19,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-08 11:08:19,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-08 11:08:19,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-08 11:08:19,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-08 11:08:19,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-08 11:08:19,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-08 11:08:19,636 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-08 11:08:19,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-08 11:08:19,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-08 11:08:19,658 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-08 11:08:19,658 INFO L275 PluginConnector]: CDTParser initialized [2019-08-08 11:08:19,659 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label56.c [2019-08-08 11:08:19,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f11753446/649891e9da6c45c288a3164f71607db6/FLAGf613e9bd5 [2019-08-08 11:08:20,506 INFO L306 CDTParser]: Found 1 translation units. [2019-08-08 11:08:20,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label56.c [2019-08-08 11:08:20,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f11753446/649891e9da6c45c288a3164f71607db6/FLAGf613e9bd5 [2019-08-08 11:08:21,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f11753446/649891e9da6c45c288a3164f71607db6 [2019-08-08 11:08:21,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-08 11:08:21,073 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-08 11:08:21,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-08 11:08:21,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-08 11:08:21,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-08 11:08:21,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:08:21" (1/1) ... [2019-08-08 11:08:21,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@636b256e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:08:21, skipping insertion in model container [2019-08-08 11:08:21,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:08:21" (1/1) ... [2019-08-08 11:08:21,089 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-08 11:08:21,203 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-08 11:08:22,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:08:22,668 INFO L188 MainTranslator]: Completed pre-run [2019-08-08 11:08:23,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:08:23,141 INFO L192 MainTranslator]: Completed translation [2019-08-08 11:08:23,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:08:23 WrapperNode [2019-08-08 11:08:23,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-08 11:08:23,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-08 11:08:23,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-08 11:08:23,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-08 11:08:23,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:08:23" (1/1) ... [2019-08-08 11:08:23,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:08:23" (1/1) ... [2019-08-08 11:08:23,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:08:23" (1/1) ... [2019-08-08 11:08:23,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:08:23" (1/1) ... [2019-08-08 11:08:23,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:08:23" (1/1) ... [2019-08-08 11:08:23,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:08:23" (1/1) ... [2019-08-08 11:08:23,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:08:23" (1/1) ... [2019-08-08 11:08:23,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-08 11:08:23,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-08 11:08:23,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-08 11:08:23,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-08 11:08:23,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:08:23" (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 11:08:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-08 11:08:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-08 11:08:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-08 11:08:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-08-08 11:08:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-08-08 11:08:23,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-08 11:08:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-08 11:08:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-08-08 11:08:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-08-08 11:08:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-08 11:08:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-08 11:08:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-08 11:08:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-08 11:08:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-08 11:08:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-08 11:08:30,978 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-08 11:08:30,979 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-08 11:08:30,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:08:30 BoogieIcfgContainer [2019-08-08 11:08:30,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-08 11:08:30,983 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-08 11:08:30,983 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-08 11:08:30,983 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-08 11:08:30,984 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:08:30" (1/1) ... [2019-08-08 11:08:30,997 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-08 11:08:30,999 INFO L155 IcfgInterpreter]: Building call graph [2019-08-08 11:08:31,016 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-08 11:08:31,022 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-08 11:08:31,023 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-08 11:08:31,074 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 37 [2019-08-08 11:09:04,617 INFO L185 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 13 [2019-08-08 11:09:04,798 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-08 11:09:04,798 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-08 11:09:04,801 INFO L179 IcfgInterpreter]: Location calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 985620#(and (= ~a15~0 4) (< 417 ~a3~0) (= ~a18~0 10) (= ~a24~0 2)) [2019-08-08 11:09:04,802 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-08 11:09:04,808 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-08 11:09:04,811 INFO L168 Benchmark]: Toolchain (without parser) took 43737.26 ms. Allocated memory was 132.6 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 79.2 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2019-08-08 11:09:04,812 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 132.6 MB. Free memory is still 107.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-08 11:09:04,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2068.49 ms. Allocated memory was 132.6 MB in the beginning and 233.8 MB in the end (delta: 101.2 MB). Free memory was 79.2 MB in the beginning and 147.0 MB in the end (delta: -67.7 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. [2019-08-08 11:09:04,814 INFO L168 Benchmark]: Boogie Preprocessor took 323.73 ms. Allocated memory is still 233.8 MB. Free memory was 147.0 MB in the beginning and 125.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-08-08 11:09:04,815 INFO L168 Benchmark]: RCFGBuilder took 7515.56 ms. Allocated memory was 233.8 MB in the beginning and 371.7 MB in the end (delta: 137.9 MB). Free memory was 125.0 MB in the beginning and 206.5 MB in the end (delta: -81.5 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. [2019-08-08 11:09:04,816 INFO L168 Benchmark]: Symbolic Interpretation took 33825.74 ms. Allocated memory was 371.7 MB in the beginning and 2.0 GB in the end (delta: 1.6 GB). Free memory was 206.5 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2019-08-08 11:09:04,821 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 153]: 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 0.45 ms. Allocated memory is still 132.6 MB. Free memory is still 107.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2068.49 ms. Allocated memory was 132.6 MB in the beginning and 233.8 MB in the end (delta: 101.2 MB). Free memory was 79.2 MB in the beginning and 147.0 MB in the end (delta: -67.7 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 323.73 ms. Allocated memory is still 233.8 MB. Free memory was 147.0 MB in the beginning and 125.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7515.56 ms. Allocated memory was 233.8 MB in the beginning and 371.7 MB in the end (delta: 137.9 MB). Free memory was 125.0 MB in the beginning and 206.5 MB in the end (delta: -81.5 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 33825.74 ms. Allocated memory was 371.7 MB in the beginning and 2.0 GB in the end (delta: 1.6 GB). Free memory was 206.5 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...