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/float-benchs/interpolation2.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-10 01:27:00,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-10 01:27:00,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-10 01:27:00,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-10 01:27:00,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-10 01:27:00,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-10 01:27:00,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-10 01:27:00,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-10 01:27:00,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-10 01:27:00,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-10 01:27:00,412 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-10 01:27:00,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-10 01:27:00,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-10 01:27:00,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-10 01:27:00,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-10 01:27:00,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-10 01:27:00,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-10 01:27:00,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-10 01:27:00,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-10 01:27:00,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-10 01:27:00,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-10 01:27:00,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-10 01:27:00,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-10 01:27:00,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-10 01:27:00,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-10 01:27:00,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-10 01:27:00,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-10 01:27:00,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-10 01:27:00,438 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 [2019-08-10 01:27:00,453 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-10 01:27:00,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-10 01:27:00,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-10 01:27:00,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-10 01:27:00,455 INFO L138 SettingsManager]: * Use SBE=true [2019-08-10 01:27:00,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-10 01:27:00,455 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-10 01:27:00,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-10 01:27:00,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-10 01:27:00,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-10 01:27:00,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-10 01:27:00,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-10 01:27:00,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-10 01:27:00,457 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-10 01:27:00,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-10 01:27:00,457 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-10 01:27:00,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-10 01:27:00,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-10 01:27:00,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-10 01:27:00,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-10 01:27:00,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-10 01:27:00,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 01:27:00,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-10 01:27:00,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-10 01:27:00,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-10 01:27:00,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-10 01:27:00,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-10 01:27:00,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-10 01:27:00,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-10 01:27:00,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-10 01:27:00,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-10 01:27:00,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-10 01:27:00,511 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-10 01:27:00,511 INFO L275 PluginConnector]: CDTParser initialized [2019-08-10 01:27:00,512 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/interpolation2.c.v+cfa-reducer.c [2019-08-10 01:27:00,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5239bec/219516712f9e48a0930f78b0bf138aff/FLAGf0ec715a7 [2019-08-10 01:27:01,051 INFO L306 CDTParser]: Found 1 translation units. [2019-08-10 01:27:01,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/interpolation2.c.v+cfa-reducer.c [2019-08-10 01:27:01,059 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5239bec/219516712f9e48a0930f78b0bf138aff/FLAGf0ec715a7 [2019-08-10 01:27:01,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5239bec/219516712f9e48a0930f78b0bf138aff [2019-08-10 01:27:01,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-10 01:27:01,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-10 01:27:01,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-10 01:27:01,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-10 01:27:01,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-10 01:27:01,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:27:01" (1/1) ... [2019-08-10 01:27:01,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4d3b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:27:01, skipping insertion in model container [2019-08-10 01:27:01,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:27:01" (1/1) ... [2019-08-10 01:27:01,448 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-10 01:27:01,468 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-10 01:27:01,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:27:01,697 INFO L188 MainTranslator]: Completed pre-run [2019-08-10 01:27:01,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:27:01,853 INFO L192 MainTranslator]: Completed translation [2019-08-10 01:27:01,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:27:01 WrapperNode [2019-08-10 01:27:01,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-10 01:27:01,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-10 01:27:01,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-10 01:27:01,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-10 01:27:01,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:27:01" (1/1) ... [2019-08-10 01:27:01,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:27:01" (1/1) ... [2019-08-10 01:27:01,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:27:01" (1/1) ... [2019-08-10 01:27:01,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:27:01" (1/1) ... [2019-08-10 01:27:01,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:27:01" (1/1) ... [2019-08-10 01:27:01,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:27:01" (1/1) ... [2019-08-10 01:27:01,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:27:01" (1/1) ... [2019-08-10 01:27:01,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-10 01:27:01,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-10 01:27:01,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-10 01:27:01,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-10 01:27:01,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:27:01" (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 [2019-08-10 01:27:01,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-10 01:27:01,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-10 01:27:01,955 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-10 01:27:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-10 01:27:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-08-10 01:27:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-10 01:27:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-10 01:27:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-10 01:27:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-10 01:27:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-08-10 01:27:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-08-10 01:27:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-10 01:27:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-10 01:27:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-10 01:27:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-08-10 01:27:02,228 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-10 01:27:02,228 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-10 01:27:02,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:27:02 BoogieIcfgContainer [2019-08-10 01:27:02,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-10 01:27:02,231 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-10 01:27:02,231 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-10 01:27:02,231 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-10 01:27:02,232 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:27:02" (1/1) ... [2019-08-10 01:27:02,511 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-10 01:27:02,520 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-10 01:27:02,525 INFO L168 Benchmark]: Toolchain (without parser) took 1090.83 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 86.3 MB in the beginning and 144.9 MB in the end (delta: -58.6 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-10 01:27:02,527 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-10 01:27:02,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.07 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 86.1 MB in the beginning and 175.6 MB in the end (delta: -89.6 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2019-08-10 01:27:02,530 INFO L168 Benchmark]: Boogie Preprocessor took 47.54 ms. Allocated memory is still 199.2 MB. Free memory was 175.6 MB in the beginning and 173.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-10 01:27:02,533 INFO L168 Benchmark]: RCFGBuilder took 328.28 ms. Allocated memory is still 199.2 MB. Free memory was 173.7 MB in the beginning and 156.5 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2019-08-10 01:27:02,534 INFO L168 Benchmark]: Symbolic Interpretation took 290.27 ms. Allocated memory is still 199.2 MB. Free memory was 156.5 MB in the beginning and 144.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-08-10 01:27:02,541 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 48]: 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 66#(and (= main_~__tmp_1~0 main_~main____CPAchecker_TMP_1~0) (= main_~__VERIFIER_assert__cond~0 0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 421.07 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 86.1 MB in the beginning and 175.6 MB in the end (delta: -89.6 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.54 ms. Allocated memory is still 199.2 MB. Free memory was 175.6 MB in the beginning and 173.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 328.28 ms. Allocated memory is still 199.2 MB. Free memory was 173.7 MB in the beginning and 156.5 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 290.27 ms. Allocated memory is still 199.2 MB. Free memory was 156.5 MB in the beginning and 144.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...