java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:04:50,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:04:50,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:04:50,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:04:50,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:04:50,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:04:50,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:04:50,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:04:50,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:04:50,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:04:50,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:04:50,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:04:50,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:04:50,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:04:50,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:04:50,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:04:50,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:04:50,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:04:50,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:04:50,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:04:50,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-11 16:04:50,492 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:04:50,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:04:50,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:04:50,493 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:04:50,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:04:50,494 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:04:50,494 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:04:50,495 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:04:50,495 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:04:50,495 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:04:50,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:04:50,496 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:04:50,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:04:50,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:04:50,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:04:50,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:04:50,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:04:50,497 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:04:50,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:04:50,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:04:50,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:04:50,498 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:04:50,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:04:50,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:04:50,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:04:50,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:04:50,499 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:04:50,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:04:50,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:04:50,500 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:04:50,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:04:50,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:04:50,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:04:50,550 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:04:50,550 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:04:50,551 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c [2019-09-11 16:04:50,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7d3d4fb/34b5c9d2a26146a49b1bfa7c6f0fc895/FLAG8b14b98a0 [2019-09-11 16:04:51,047 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:04:51,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c [2019-09-11 16:04:51,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7d3d4fb/34b5c9d2a26146a49b1bfa7c6f0fc895/FLAG8b14b98a0 [2019-09-11 16:04:51,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7d3d4fb/34b5c9d2a26146a49b1bfa7c6f0fc895 [2019-09-11 16:04:51,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:04:51,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:04:51,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:04:51,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:04:51,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:04:51,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:04:51" (1/1) ... [2019-09-11 16:04:51,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3b1b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:51, skipping insertion in model container [2019-09-11 16:04:51,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:04:51" (1/1) ... [2019-09-11 16:04:51,528 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:04:51,549 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:04:51,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:04:51,771 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:04:51,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:04:51,808 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:04:51,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:51 WrapperNode [2019-09-11 16:04:51,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:04:51,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:04:51,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:04:51,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:04:51,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:51" (1/1) ... [2019-09-11 16:04:51,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:51" (1/1) ... [2019-09-11 16:04:51,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:51" (1/1) ... [2019-09-11 16:04:51,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:51" (1/1) ... [2019-09-11 16:04:51,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:51" (1/1) ... [2019-09-11 16:04:51,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:51" (1/1) ... [2019-09-11 16:04:51,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:51" (1/1) ... [2019-09-11 16:04:51,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:04:51,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:04:51,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:04:51,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:04:51,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:04:51" (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 [2019-09-11 16:04:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:04:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:04:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:04:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:04:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:04:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:04:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:04:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:04:52,129 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:04:52,129 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:04:52,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:04:52 BoogieIcfgContainer [2019-09-11 16:04:52,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:04:52,131 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:04:52,132 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:04:52,132 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:04:52,133 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:04:52" (1/1) ... [2019-09-11 16:04:52,161 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:04:52,235 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPLT has no precise implementation. [2019-09-11 16:04:52,236 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPGT has no precise implementation. [2019-09-11 16:04:52,308 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:04:52,327 INFO L272 AbstractInterpreter]: Visited 15 different actions 35 times. Merged at 6 different actions 14 times. Widened at 1 different actions 1 times. Performed 81 root evaluator evaluations with a maximum evaluation depth of 3. Performed 81 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 7 variables. [2019-09-11 16:04:52,327 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:04:52,330 INFO L168 Benchmark]: Toolchain (without parser) took 820.10 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 90.7 MB in the beginning and 160.3 MB in the end (delta: -69.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:04:52,331 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory is still 108.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:04:52,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.28 ms. Allocated memory is still 142.6 MB. Free memory was 90.7 MB in the beginning and 81.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:52,334 INFO L168 Benchmark]: Boogie Preprocessor took 127.59 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 81.1 MB in the beginning and 178.0 MB in the end (delta: -96.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:52,335 INFO L168 Benchmark]: RCFGBuilder took 193.40 ms. Allocated memory is still 200.8 MB. Free memory was 178.0 MB in the beginning and 168.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:52,336 INFO L168 Benchmark]: Abstract Interpretation took 196.16 ms. Allocated memory is still 200.8 MB. Free memory was 168.6 MB in the beginning and 160.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. [2019-09-11 16:04:52,344 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory is still 108.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.28 ms. Allocated memory is still 142.6 MB. Free memory was 90.7 MB in the beginning and 81.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.59 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 81.1 MB in the beginning and 178.0 MB in the end (delta: -96.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 193.40 ms. Allocated memory is still 200.8 MB. Free memory was 178.0 MB in the beginning and 168.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 196.16 ms. Allocated memory is still 200.8 MB. Free memory was 168.6 MB in the beginning and 160.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 25]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L1] int __return_main; [L7] float main__x = 1.0; [L8] float main__x1 = main__x / 2.5; [L10] COND TRUE main__x1 != main__x [L12] main__x = main__x1 [L13] main__x1 = main__x / 2.5 [L10] COND TRUE main__x1 != main__x [L12] main__x = main__x1 [L13] main__x1 = main__x / 2.5 [L10] COND FALSE !(main__x1 != main__x) [L19] int __tmp_1; [L20] __tmp_1 = main__x == 0 [L21] int __VERIFIER_assert__cond; [L22] __VERIFIER_assert__cond = __tmp_1 [L23] COND TRUE __VERIFIER_assert__cond == 0 [L25] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...