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/reducercommutativity/sep.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-09 16:24:20,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 16:24:20,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 16:24:20,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 16:24:20,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 16:24:20,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 16:24:20,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 16:24:21,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 16:24:21,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 16:24:21,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 16:24:21,004 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 16:24:21,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 16:24:21,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 16:24:21,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 16:24:21,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 16:24:21,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 16:24:21,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 16:24:21,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 16:24:21,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 16:24:21,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 16:24:21,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 16:24:21,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 16:24:21,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 16:24:21,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 16:24:21,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-09 16:24:21,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 16:24:21,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 16:24:21,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 16:24:21,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 16:24:21,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 16:24:21,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 16:24:21,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 16:24:21,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 16:24:21,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 16:24:21,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 16:24:21,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 16:24:21,031 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 [2019-08-09 16:24:21,046 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-09 16:24:21,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-09 16:24:21,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-09 16:24:21,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-09 16:24:21,048 INFO L138 SettingsManager]: * Use SBE=true [2019-08-09 16:24:21,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-09 16:24:21,048 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-09 16:24:21,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-09 16:24:21,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-09 16:24:21,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-09 16:24:21,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-09 16:24:21,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-09 16:24:21,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-09 16:24:21,050 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-09 16:24:21,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-09 16:24:21,050 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-09 16:24:21,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-09 16:24:21,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-09 16:24:21,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-09 16:24:21,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-09 16:24:21,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-09 16:24:21,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-09 16:24:21,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-09 16:24:21,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-09 16:24:21,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-09 16:24:21,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-09 16:24:21,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-09 16:24:21,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-09 16:24:21,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-09 16:24:21,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 16:24:21,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 16:24:21,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 16:24:21,109 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-09 16:24:21,109 INFO L275 PluginConnector]: CDTParser initialized [2019-08-09 16:24:21,110 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/sep.i [2019-08-09 16:24:21,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d12fab6de/8c135154d2f84caf9e2da90c0ed3b080/FLAGbfc63bf04 [2019-08-09 16:24:21,666 INFO L306 CDTParser]: Found 1 translation units. [2019-08-09 16:24:21,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/sep.i [2019-08-09 16:24:21,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d12fab6de/8c135154d2f84caf9e2da90c0ed3b080/FLAGbfc63bf04 [2019-08-09 16:24:22,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d12fab6de/8c135154d2f84caf9e2da90c0ed3b080 [2019-08-09 16:24:22,041 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 16:24:22,043 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-09 16:24:22,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-09 16:24:22,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-09 16:24:22,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-09 16:24:22,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:24:22" (1/1) ... [2019-08-09 16:24:22,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17426bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:24:22, skipping insertion in model container [2019-08-09 16:24:22,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:24:22" (1/1) ... [2019-08-09 16:24:22,065 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-09 16:24:22,091 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-09 16:24:22,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:24:22,364 INFO L188 MainTranslator]: Completed pre-run [2019-08-09 16:24:22,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:24:22,521 INFO L192 MainTranslator]: Completed translation [2019-08-09 16:24:22,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:24:22 WrapperNode [2019-08-09 16:24:22,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-09 16:24:22,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 16:24:22,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 16:24:22,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 16:24:22,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:24:22" (1/1) ... [2019-08-09 16:24:22,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:24:22" (1/1) ... [2019-08-09 16:24:22,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:24:22" (1/1) ... [2019-08-09 16:24:22,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:24:22" (1/1) ... [2019-08-09 16:24:22,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:24:22" (1/1) ... [2019-08-09 16:24:22,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:24:22" (1/1) ... [2019-08-09 16:24:22,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:24:22" (1/1) ... [2019-08-09 16:24:22,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 16:24:22,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 16:24:22,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 16:24:22,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 16:24:22,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:24:22" (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 [2019-08-09 16:24:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-09 16:24:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-09 16:24:22,663 INFO L138 BoogieDeclarations]: Found implementation of procedure sep [2019-08-09 16:24:22,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-09 16:24:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-09 16:24:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-09 16:24:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure sep [2019-08-09 16:24:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-09 16:24:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-09 16:24:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-09 16:24:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-09 16:24:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-09 16:24:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-09 16:24:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-09 16:24:23,085 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-09 16:24:23,085 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-09 16:24:23,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:24:23 BoogieIcfgContainer [2019-08-09 16:24:23,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 16:24:23,087 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 16:24:23,088 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 16:24:23,088 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 16:24:23,089 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:24:23" (1/1) ... [2019-08-09 16:24:23,565 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 16:24:23,577 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 16:24:23,580 INFO L168 Benchmark]: Toolchain (without parser) took 1536.14 ms. Allocated memory was 141.0 MB in the beginning and 199.2 MB in the end (delta: 58.2 MB). Free memory was 89.1 MB in the beginning and 126.1 MB in the end (delta: -37.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-08-09 16:24:23,582 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-09 16:24:23,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 474.12 ms. Allocated memory was 141.0 MB in the beginning and 199.2 MB in the end (delta: 58.2 MB). Free memory was 88.6 MB in the beginning and 178.6 MB in the end (delta: -90.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-08-09 16:24:23,586 INFO L168 Benchmark]: Boogie Preprocessor took 69.02 ms. Allocated memory is still 199.2 MB. Free memory was 177.6 MB in the beginning and 175.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-08-09 16:24:23,588 INFO L168 Benchmark]: RCFGBuilder took 495.41 ms. Allocated memory is still 199.2 MB. Free memory was 175.4 MB in the beginning and 159.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-08-09 16:24:23,589 INFO L168 Benchmark]: Symbolic Interpretation took 489.88 ms. Allocated memory is still 199.2 MB. Free memory was 159.1 MB in the beginning and 126.1 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2019-08-09 16:24:23,600 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 42]: 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. Predicate is 74#(and (or (not (= main_~ret~1 main_~ret2~0)) (not (= main_~ret~1 main_~ret5~0))) (exists ((v_prenex_15 Int) (v_sep_~ret~0_BEFORE_RETURN_3 Int)) (or (and (not (<= (mod v_sep_~ret~0_BEFORE_RETURN_3 4294967296) 2147483647)) (= main_~temp~0 (select (select |#memory_int| |main_~#x~0.base|) (+ (* 4 ~N~0) |main_~#x~0.offset| (- 4)))) (<= main_~ret5~0 2147483647) (= main_~ret5~0 (+ (mod v_sep_~ret~0_BEFORE_RETURN_3 4294967296) (- 4294967296))) (<= 0 (+ main_~ret5~0 2147483648)) (not (< (+ main_~i~1 1) ~N~0))) (and (= (mod v_prenex_15 4294967296) main_~ret5~0) (= main_~temp~0 (select (select |#memory_int| |main_~#x~0.base|) (+ (* 4 ~N~0) |main_~#x~0.offset| (- 4)))) (<= (mod v_prenex_15 4294967296) 2147483647) (<= main_~ret5~0 2147483647) (<= 0 (+ main_~ret5~0 2147483648)) (not (< (+ main_~i~1 1) ~N~0)))))). 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 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 474.12 ms. Allocated memory was 141.0 MB in the beginning and 199.2 MB in the end (delta: 58.2 MB). Free memory was 88.6 MB in the beginning and 178.6 MB in the end (delta: -90.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.02 ms. Allocated memory is still 199.2 MB. Free memory was 177.6 MB in the beginning and 175.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 495.41 ms. Allocated memory is still 199.2 MB. Free memory was 175.4 MB in the beginning and 159.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 489.88 ms. Allocated memory is still 199.2 MB. Free memory was 159.1 MB in the beginning and 126.1 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...