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/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-18 06:18:44,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-18 06:18:44,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-18 06:18:44,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-18 06:18:44,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-18 06:18:44,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-18 06:18:44,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-18 06:18:44,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-18 06:18:44,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-18 06:18:44,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-18 06:18:44,470 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-18 06:18:44,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-18 06:18:44,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-18 06:18:44,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-18 06:18:44,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-18 06:18:44,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-18 06:18:44,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-18 06:18:44,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-18 06:18:44,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-18 06:18:44,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-18 06:18:44,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-18 06:18:44,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-18 06:18:44,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-18 06:18:44,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-18 06:18:44,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-18 06:18:44,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-18 06:18:44,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-18 06:18:44,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-18 06:18:44,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-18 06:18:44,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-18 06:18:44,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-18 06:18:44,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-18 06:18:44,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-18 06:18:44,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-18 06:18:44,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-18 06:18:44,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-18 06:18:44,495 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 [2019-08-18 06:18:44,514 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-18 06:18:44,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-18 06:18:44,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-18 06:18:44,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-18 06:18:44,517 INFO L138 SettingsManager]: * Use SBE=true [2019-08-18 06:18:44,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-18 06:18:44,518 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-18 06:18:44,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-18 06:18:44,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-18 06:18:44,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-18 06:18:44,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-18 06:18:44,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-18 06:18:44,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-18 06:18:44,519 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-18 06:18:44,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-18 06:18:44,519 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-18 06:18:44,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-18 06:18:44,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-18 06:18:44,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-18 06:18:44,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-18 06:18:44,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-18 06:18:44,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-18 06:18:44,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-18 06:18:44,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-18 06:18:44,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-18 06:18:44,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-18 06:18:44,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-18 06:18:44,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-18 06:18:44,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-18 06:18:44,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-18 06:18:44,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-18 06:18:44,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-18 06:18:44,577 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-18 06:18:44,578 INFO L275 PluginConnector]: CDTParser initialized [2019-08-18 06:18:44,578 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c [2019-08-18 06:18:44,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7479fc525/23781cd778fe4037b3e6b5bb62ee28c4/FLAG920819f1d [2019-08-18 06:18:45,069 INFO L306 CDTParser]: Found 1 translation units. [2019-08-18 06:18:45,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Float_div_bad.i.p+cfa-reducer.c [2019-08-18 06:18:45,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7479fc525/23781cd778fe4037b3e6b5bb62ee28c4/FLAG920819f1d [2019-08-18 06:18:45,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7479fc525/23781cd778fe4037b3e6b5bb62ee28c4 [2019-08-18 06:18:45,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-18 06:18:45,510 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-18 06:18:45,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-18 06:18:45,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-18 06:18:45,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-18 06:18:45,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:18:45" (1/1) ... [2019-08-18 06:18:45,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fbe2446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:45, skipping insertion in model container [2019-08-18 06:18:45,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:18:45" (1/1) ... [2019-08-18 06:18:45,527 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-18 06:18:45,545 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-18 06:18:45,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 06:18:45,769 INFO L188 MainTranslator]: Completed pre-run [2019-08-18 06:18:45,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 06:18:45,801 INFO L192 MainTranslator]: Completed translation [2019-08-18 06:18:45,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:45 WrapperNode [2019-08-18 06:18:45,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-18 06:18:45,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-18 06:18:45,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-18 06:18:45,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-18 06:18:45,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:45" (1/1) ... [2019-08-18 06:18:45,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:45" (1/1) ... [2019-08-18 06:18:45,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:45" (1/1) ... [2019-08-18 06:18:45,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:45" (1/1) ... [2019-08-18 06:18:45,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:45" (1/1) ... [2019-08-18 06:18:45,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:45" (1/1) ... [2019-08-18 06:18:45,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:45" (1/1) ... [2019-08-18 06:18:45,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-18 06:18:45,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-18 06:18:45,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-18 06:18:45,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-18 06:18:45,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:18:45" (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 [2019-08-18 06:18:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-18 06:18:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-18 06:18:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-18 06:18:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-18 06:18:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-18 06:18:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-18 06:18:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-18 06:18:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-18 06:18:46,127 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-18 06:18:46,127 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-18 06:18:46,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:18:46 BoogieIcfgContainer [2019-08-18 06:18:46,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-18 06:18:46,130 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-18 06:18:46,130 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-18 06:18:46,130 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-18 06:18:46,131 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:18:46" (1/1) ... [2019-08-18 06:18:46,142 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-18 06:18:46,145 INFO L155 IcfgInterpreter]: Building call graph [2019-08-18 06:18:46,151 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-18 06:18:46,160 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-18 06:18:46,161 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-18 06:18:46,208 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 3 [2019-08-18 06:18:46,228 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-18 06:18:46,228 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-18 06:18:46,234 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 22#(and (= main_~__VERIFIER_assert__cond~0 0) (or (and (= 1.0 main_~main__x~0) (= ~__return_main~0 0)) (= ~__return_main~0 0)) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (or (= main_~__tmp_1~0 1) (= main_~__tmp_1~0 0))) [2019-08-18 06:18:46,245 INFO L92 terpretationObserver]: ✘ Some locations of interest might be reachable, see reported results. [2019-08-18 06:18:46,246 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-18 06:18:46,248 INFO L168 Benchmark]: Toolchain (without parser) took 736.91 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 87.7 MB in the beginning and 161.6 MB in the end (delta: -73.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-18 06:18:46,249 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-18 06:18:46,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.62 ms. Allocated memory is still 140.5 MB. Free memory was 87.5 MB in the beginning and 78.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-18 06:18:46,251 INFO L168 Benchmark]: Boogie Preprocessor took 119.55 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 78.2 MB in the beginning and 178.3 MB in the end (delta: -100.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-08-18 06:18:46,252 INFO L168 Benchmark]: RCFGBuilder took 207.21 ms. Allocated memory is still 200.3 MB. Free memory was 178.3 MB in the beginning and 167.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-08-18 06:18:46,253 INFO L168 Benchmark]: Symbolic Interpretation took 116.17 ms. Allocated memory is still 200.3 MB. Free memory was 167.5 MB in the beginning and 161.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2019-08-18 06:18:46,257 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 25]: 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 22#(and (= main_~__VERIFIER_assert__cond~0 0) (or (and (= 1.0 main_~main__x~0) (= ~__return_main~0 0)) (= ~__return_main~0 0)) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (or (= main_~__tmp_1~0 1) (= main_~__tmp_1~0 0))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 290.62 ms. Allocated memory is still 140.5 MB. Free memory was 87.5 MB in the beginning and 78.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.55 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 78.2 MB in the beginning and 178.3 MB in the end (delta: -100.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 207.21 ms. Allocated memory is still 200.3 MB. Free memory was 178.3 MB in the beginning and 167.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 116.17 ms. Allocated memory is still 200.3 MB. Free memory was 167.5 MB in the beginning and 161.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...