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/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-15 00:43:33,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-15 00:43:33,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-15 00:43:33,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-15 00:43:33,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-15 00:43:33,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-15 00:43:33,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-15 00:43:33,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-15 00:43:33,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-15 00:43:33,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-15 00:43:33,301 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-15 00:43:33,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-15 00:43:33,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-15 00:43:33,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-15 00:43:33,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-15 00:43:33,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-15 00:43:33,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-15 00:43:33,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-15 00:43:33,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-15 00:43:33,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-15 00:43:33,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-15 00:43:33,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-15 00:43:33,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-15 00:43:33,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-15 00:43:33,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-15 00:43:33,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-15 00:43:33,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-15 00:43:33,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-15 00:43:33,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-15 00:43:33,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-15 00:43:33,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-15 00:43:33,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-15 00:43:33,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-15 00:43:33,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-15 00:43:33,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-15 00:43:33,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-15 00:43:33,351 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 [2019-08-15 00:43:33,378 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-15 00:43:33,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-15 00:43:33,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-15 00:43:33,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-15 00:43:33,380 INFO L138 SettingsManager]: * Use SBE=true [2019-08-15 00:43:33,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-15 00:43:33,381 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-15 00:43:33,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-15 00:43:33,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-15 00:43:33,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-15 00:43:33,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-15 00:43:33,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-15 00:43:33,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-15 00:43:33,384 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-15 00:43:33,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-15 00:43:33,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-15 00:43:33,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-15 00:43:33,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-15 00:43:33,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-15 00:43:33,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-15 00:43:33,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-15 00:43:33,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-15 00:43:33,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-15 00:43:33,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-15 00:43:33,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-15 00:43:33,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-15 00:43:33,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-15 00:43:33,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-15 00:43:33,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-15 00:43:33,444 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-15 00:43:33,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-15 00:43:33,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-15 00:43:33,467 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-15 00:43:33,468 INFO L275 PluginConnector]: CDTParser initialized [2019-08-15 00:43:33,468 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-08-15 00:43:33,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/653dabd44/a8c10fb638df493296f909fc614f1e43/FLAGe6fd5aae8 [2019-08-15 00:43:34,040 INFO L306 CDTParser]: Found 1 translation units. [2019-08-15 00:43:34,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-08-15 00:43:34,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/653dabd44/a8c10fb638df493296f909fc614f1e43/FLAGe6fd5aae8 [2019-08-15 00:43:34,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/653dabd44/a8c10fb638df493296f909fc614f1e43 [2019-08-15 00:43:34,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-15 00:43:34,320 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-15 00:43:34,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-15 00:43:34,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-15 00:43:34,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-15 00:43:34,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 12:43:34" (1/1) ... [2019-08-15 00:43:34,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@254113f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 12:43:34, skipping insertion in model container [2019-08-15 00:43:34,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 12:43:34" (1/1) ... [2019-08-15 00:43:34,336 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-15 00:43:34,393 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-15 00:43:34,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-15 00:43:34,765 INFO L188 MainTranslator]: Completed pre-run [2019-08-15 00:43:34,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-15 00:43:34,891 INFO L192 MainTranslator]: Completed translation [2019-08-15 00:43:34,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 12:43:34 WrapperNode [2019-08-15 00:43:34,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-15 00:43:34,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-15 00:43:34,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-15 00:43:34,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-15 00:43:34,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 12:43:34" (1/1) ... [2019-08-15 00:43:34,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 12:43:34" (1/1) ... [2019-08-15 00:43:34,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 12:43:34" (1/1) ... [2019-08-15 00:43:34,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 12:43:34" (1/1) ... [2019-08-15 00:43:34,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 12:43:34" (1/1) ... [2019-08-15 00:43:34,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 12:43:34" (1/1) ... [2019-08-15 00:43:34,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 12:43:34" (1/1) ... [2019-08-15 00:43:34,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-15 00:43:34,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-15 00:43:34,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-15 00:43:34,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-15 00:43:34,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 12:43:34" (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 [2019-08-15 00:43:35,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-15 00:43:35,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-15 00:43:35,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-15 00:43:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-15 00:43:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-08-15 00:43:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-08-15 00:43:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-08-15 00:43:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-08-15 00:43:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-15 00:43:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-08-15 00:43:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-08-15 00:43:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-08-15 00:43:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-08-15 00:43:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-08-15 00:43:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-08-15 00:43:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-08-15 00:43:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-08-15 00:43:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-15 00:43:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-15 00:43:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-15 00:43:35,781 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-15 00:43:35,783 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-15 00:43:35,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.08 12:43:35 BoogieIcfgContainer [2019-08-15 00:43:35,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-15 00:43:35,785 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-15 00:43:35,785 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-15 00:43:35,785 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-15 00:43:35,787 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.08 12:43:35" (1/1) ... [2019-08-15 00:43:36,133 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-08-15 00:43:36,335 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-08-15 00:43:38,120 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-15 00:43:38,122 INFO L168 Benchmark]: Toolchain (without parser) took 3802.39 ms. Allocated memory was 132.6 MB in the beginning and 327.7 MB in the end (delta: 195.0 MB). Free memory was 86.1 MB in the beginning and 247.9 MB in the end (delta: -161.8 MB). Peak memory consumption was 136.3 MB. Max. memory is 7.1 GB. [2019-08-15 00:43:38,123 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-15 00:43:38,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 572.41 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 85.9 MB in the beginning and 172.1 MB in the end (delta: -86.2 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2019-08-15 00:43:38,125 INFO L168 Benchmark]: Boogie Preprocessor took 61.83 ms. Allocated memory is still 199.8 MB. Free memory was 172.1 MB in the beginning and 169.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-08-15 00:43:38,126 INFO L168 Benchmark]: RCFGBuilder took 829.06 ms. Allocated memory is still 199.8 MB. Free memory was 169.5 MB in the beginning and 117.5 MB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. [2019-08-15 00:43:38,127 INFO L168 Benchmark]: Symbolic Interpretation took 2335.56 ms. Allocated memory was 199.8 MB in the beginning and 327.7 MB in the end (delta: 127.9 MB). Free memory was 117.5 MB in the beginning and 247.9 MB in the end (delta: -130.4 MB). Peak memory consumption was 100.6 MB. Max. memory is 7.1 GB. [2019-08-15 00:43:38,131 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 339]: 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 1687#(and (= ~__return_3148~0 main_~check__tmp~1) (= main_~main__c1~0 ~__return_3148~0) (= main_~__tmp_2~0 main_~assert__arg~1) (= (mod main_~assert__arg~1 256) 0) (= main_~__tmp_2~0 (ite (= main_~main__c1~0 0) 0 1))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 572.41 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 85.9 MB in the beginning and 172.1 MB in the end (delta: -86.2 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.83 ms. Allocated memory is still 199.8 MB. Free memory was 172.1 MB in the beginning and 169.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 829.06 ms. Allocated memory is still 199.8 MB. Free memory was 169.5 MB in the beginning and 117.5 MB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 2335.56 ms. Allocated memory was 199.8 MB in the beginning and 327.7 MB in the end (delta: 127.9 MB). Free memory was 117.5 MB in the beginning and 247.9 MB in the end (delta: -130.4 MB). Peak memory consumption was 100.6 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...