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/loop-acceleration/simple_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f3d0b09 [2019-08-08 11:46:13,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-08 11:46:13,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-08 11:46:13,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-08 11:46:13,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-08 11:46:13,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-08 11:46:13,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-08 11:46:13,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-08 11:46:13,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-08 11:46:13,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-08 11:46:13,443 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-08 11:46:13,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-08 11:46:13,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-08 11:46:13,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-08 11:46:13,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-08 11:46:13,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-08 11:46:13,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-08 11:46:13,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-08 11:46:13,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-08 11:46:13,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-08 11:46:13,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-08 11:46:13,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-08 11:46:13,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-08 11:46:13,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-08 11:46:13,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-08 11:46:13,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-08 11:46:13,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-08 11:46:13,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-08 11:46:13,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-08 11:46:13,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-08 11:46:13,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-08 11:46:13,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-08 11:46:13,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-08 11:46:13,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-08 11:46:13,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-08 11:46:13,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-08 11:46:13,472 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 11:46:13,487 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-08 11:46:13,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-08 11:46:13,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-08 11:46:13,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-08 11:46:13,489 INFO L138 SettingsManager]: * Use SBE=true [2019-08-08 11:46:13,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-08 11:46:13,490 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-08 11:46:13,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-08 11:46:13,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-08 11:46:13,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-08 11:46:13,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-08 11:46:13,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-08 11:46:13,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-08 11:46:13,492 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-08 11:46:13,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-08 11:46:13,492 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-08 11:46:13,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-08 11:46:13,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-08 11:46:13,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-08 11:46:13,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-08 11:46:13,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-08 11:46:13,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-08 11:46:13,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-08 11:46:13,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-08 11:46:13,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-08 11:46:13,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-08 11:46:13,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-08 11:46:13,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-08 11:46:13,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-08 11:46:13,524 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-08 11:46:13,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-08 11:46:13,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-08 11:46:13,543 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-08 11:46:13,544 INFO L275 PluginConnector]: CDTParser initialized [2019-08-08 11:46:13,545 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_1-2.c [2019-08-08 11:46:13,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8970c0d/89029a6e5dd045d5b0c35232b6f48175/FLAGcd1b5ab4e [2019-08-08 11:46:14,068 INFO L306 CDTParser]: Found 1 translation units. [2019-08-08 11:46:14,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_1-2.c [2019-08-08 11:46:14,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8970c0d/89029a6e5dd045d5b0c35232b6f48175/FLAGcd1b5ab4e [2019-08-08 11:46:14,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8970c0d/89029a6e5dd045d5b0c35232b6f48175 [2019-08-08 11:46:14,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-08 11:46:14,433 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-08 11:46:14,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-08 11:46:14,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-08 11:46:14,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-08 11:46:14,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:14,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a15d0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14, skipping insertion in model container [2019-08-08 11:46:14,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:14,449 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-08 11:46:14,463 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-08 11:46:14,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:46:14,625 INFO L188 MainTranslator]: Completed pre-run [2019-08-08 11:46:14,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:46:14,663 INFO L192 MainTranslator]: Completed translation [2019-08-08 11:46:14,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14 WrapperNode [2019-08-08 11:46:14,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-08 11:46:14,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-08 11:46:14,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-08 11:46:14,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-08 11:46:14,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:14,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:14,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:14,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:14,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:14,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:14,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:14,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-08 11:46:14,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-08 11:46:14,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-08 11:46:14,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-08 11:46:14,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (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 11:46:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-08 11:46:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-08 11:46:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-08 11:46:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-08 11:46:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-08 11:46:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-08 11:46:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-08 11:46:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-08 11:46:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-08 11:46:15,028 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-08 11:46:15,029 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-08 11:46:15,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:46:15 BoogieIcfgContainer [2019-08-08 11:46:15,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-08 11:46:15,031 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-08 11:46:15,031 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-08 11:46:15,031 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-08 11:46:15,032 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:46:15" (1/1) ... [2019-08-08 11:46:15,042 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-08 11:46:15,044 INFO L155 IcfgInterpreter]: Building call graph [2019-08-08 11:46:15,051 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-08 11:46:15,058 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-08 11:46:15,060 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-08 11:46:15,092 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-08 11:46:15,159 INFO L185 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 28 [2019-08-08 11:46:15,166 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-08 11:46:15,166 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-08 11:46:15,169 INFO L179 IcfgInterpreter]: Location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 34#(and (exists ((v_main_~x~0_BEFORE_CALL_1 Int)) (and (< (mod (+ v_main_~x~0_BEFORE_CALL_1 4294967294) 4294967296) 268435455) (not (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) 268435455)) (= |__VERIFIER_assert_#in~cond| (ite (= (mod (ite (and (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) 0) (not (= (mod v_main_~x~0_BEFORE_CALL_1 2) 0))) (+ (mod v_main_~x~0_BEFORE_CALL_1 2) (- 2)) (mod v_main_~x~0_BEFORE_CALL_1 2)) 4294967296) 0) 1 0)))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-08-08 11:46:15,170 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-08 11:46:15,176 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-08 11:46:15,179 INFO L168 Benchmark]: Toolchain (without parser) took 745.44 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 87.1 MB in the beginning and 162.2 MB in the end (delta: -75.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-08 11:46:15,180 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-08 11:46:15,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.43 ms. Allocated memory is still 139.5 MB. Free memory was 86.7 MB in the beginning and 77.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:15,182 INFO L168 Benchmark]: Boogie Preprocessor took 116.29 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 77.7 MB in the beginning and 178.8 MB in the end (delta: -101.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:15,183 INFO L168 Benchmark]: RCFGBuilder took 248.63 ms. Allocated memory is still 200.3 MB. Free memory was 178.8 MB in the beginning and 168.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:15,184 INFO L168 Benchmark]: Symbolic Interpretation took 145.82 ms. Allocated memory is still 200.3 MB. Free memory was 168.2 MB in the beginning and 162.2 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:15,188 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 5]: 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 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 230.43 ms. Allocated memory is still 139.5 MB. Free memory was 86.7 MB in the beginning and 77.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.29 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 77.7 MB in the beginning and 178.8 MB in the end (delta: -101.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 248.63 ms. Allocated memory is still 200.3 MB. Free memory was 178.8 MB in the beginning and 168.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 145.82 ms. Allocated memory is still 200.3 MB. Free memory was 168.2 MB in the beginning and 162.2 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...