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/interpolation.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 19:39:15,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 19:39:15,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 19:39:15,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 19:39:15,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 19:39:15,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 19:39:15,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 19:39:15,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 19:39:15,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 19:39:15,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 19:39:15,337 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 19:39:15,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 19:39:15,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 19:39:15,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 19:39:15,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 19:39:15,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 19:39:15,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 19:39:15,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 19:39:15,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 19:39:15,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 19:39:15,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 19:39:15,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 19:39:15,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 19:39:15,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 19:39:15,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-14 19:39:15,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-14 19:39:15,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-14 19:39:15,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-14 19:39:15,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-14 19:39:15,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-14 19:39:15,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-14 19:39:15,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-14 19:39:15,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-14 19:39:15,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-14 19:39:15,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-14 19:39:15,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-14 19:39:15,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-14 19:39:15,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-14 19:39:15,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 19:39:15,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 19:39:15,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 19:39:15,369 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 [2019-08-14 19:39:15,393 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 19:39:15,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 19:39:15,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 19:39:15,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 19:39:15,396 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 19:39:15,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 19:39:15,397 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 19:39:15,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 19:39:15,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 19:39:15,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 19:39:15,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 19:39:15,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 19:39:15,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 19:39:15,399 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 19:39:15,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 19:39:15,400 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 19:39:15,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 19:39:15,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 19:39:15,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 19:39:15,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 19:39:15,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 19:39:15,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 19:39:15,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 19:39:15,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 19:39:15,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 19:39:15,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 19:39:15,402 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 19:39:15,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 19:39:15,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 19:39:15,449 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 19:39:15,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 19:39:15,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 19:39:15,464 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 19:39:15,465 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 19:39:15,466 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/interpolation.c.v+cfa-reducer.c [2019-08-14 19:39:15,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d035c001/62b19b4c09d3469195c64dad303c0cde/FLAGe6495e615 [2019-08-14 19:39:15,977 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 19:39:15,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/interpolation.c.v+cfa-reducer.c [2019-08-14 19:39:15,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d035c001/62b19b4c09d3469195c64dad303c0cde/FLAGe6495e615 [2019-08-14 19:39:16,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d035c001/62b19b4c09d3469195c64dad303c0cde [2019-08-14 19:39:16,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 19:39:16,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 19:39:16,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 19:39:16,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 19:39:16,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 19:39:16,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 07:39:16" (1/1) ... [2019-08-14 19:39:16,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790fcaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:39:16, skipping insertion in model container [2019-08-14 19:39:16,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 07:39:16" (1/1) ... [2019-08-14 19:39:16,359 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 19:39:16,380 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 19:39:16,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 19:39:16,582 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 19:39:16,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 19:39:16,717 INFO L192 MainTranslator]: Completed translation [2019-08-14 19:39:16,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:39:16 WrapperNode [2019-08-14 19:39:16,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 19:39:16,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 19:39:16,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 19:39:16,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 19:39:16,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:39:16" (1/1) ... [2019-08-14 19:39:16,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:39:16" (1/1) ... [2019-08-14 19:39:16,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:39:16" (1/1) ... [2019-08-14 19:39:16,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:39:16" (1/1) ... [2019-08-14 19:39:16,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:39:16" (1/1) ... [2019-08-14 19:39:16,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:39:16" (1/1) ... [2019-08-14 19:39:16,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:39:16" (1/1) ... [2019-08-14 19:39:16,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 19:39:16,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 19:39:16,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 19:39:16,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 19:39:16,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 07:39:16" (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 [2019-08-14 19:39:16,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 19:39:16,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 19:39:16,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 19:39:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 19:39:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-08-14 19:39:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-14 19:39:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-14 19:39:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 19:39:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-14 19:39:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-08-14 19:39:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-08-14 19:39:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-14 19:39:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 19:39:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 19:39:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-08-14 19:39:17,068 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 19:39:17,069 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-14 19:39:17,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 07:39:17 BoogieIcfgContainer [2019-08-14 19:39:17,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 19:39:17,071 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 19:39:17,071 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 19:39:17,071 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 19:39:17,072 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 07:39:17" (1/1) ... [2019-08-14 19:39:17,360 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 19:39:17,364 INFO L168 Benchmark]: Toolchain (without parser) took 1021.56 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 84.8 MB in the beginning and 148.0 MB in the end (delta: -63.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-14 19:39:17,366 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-14 19:39:17,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.66 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 84.6 MB in the beginning and 177.1 MB in the end (delta: -92.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-08-14 19:39:17,368 INFO L168 Benchmark]: Boogie Preprocessor took 40.58 ms. Allocated memory is still 198.7 MB. Free memory was 177.1 MB in the beginning and 174.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-08-14 19:39:17,369 INFO L168 Benchmark]: RCFGBuilder took 308.92 ms. Allocated memory is still 198.7 MB. Free memory was 174.7 MB in the beginning and 159.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2019-08-14 19:39:17,370 INFO L168 Benchmark]: Symbolic Interpretation took 289.73 ms. Allocated memory is still 198.7 MB. Free memory was 159.6 MB in the beginning and 148.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-08-14 19:39:17,374 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 46]: 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 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 0.38 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 376.66 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 84.6 MB in the beginning and 177.1 MB in the end (delta: -92.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.58 ms. Allocated memory is still 198.7 MB. Free memory was 177.1 MB in the beginning and 174.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 308.92 ms. Allocated memory is still 198.7 MB. Free memory was 174.7 MB in the beginning and 159.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 289.73 ms. Allocated memory is still 198.7 MB. Free memory was 159.6 MB in the beginning and 148.0 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...