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/Double_div_bad.i.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-10 01:28:06,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-10 01:28:06,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-10 01:28:06,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-10 01:28:06,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-10 01:28:06,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-10 01:28:06,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-10 01:28:06,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-10 01:28:06,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-10 01:28:06,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-10 01:28:06,524 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-10 01:28:06,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-10 01:28:06,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-10 01:28:06,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-10 01:28:06,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-10 01:28:06,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-10 01:28:06,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-10 01:28:06,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-10 01:28:06,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-10 01:28:06,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-10 01:28:06,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-10 01:28:06,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-10 01:28:06,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-10 01:28:06,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-10 01:28:06,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-10 01:28:06,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-10 01:28:06,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-10 01:28:06,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-10 01:28:06,551 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 01:28:06,565 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-10 01:28:06,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-10 01:28:06,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-10 01:28:06,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-10 01:28:06,567 INFO L138 SettingsManager]: * Use SBE=true [2019-08-10 01:28:06,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-10 01:28:06,568 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-10 01:28:06,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-10 01:28:06,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-10 01:28:06,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-10 01:28:06,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-10 01:28:06,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-10 01:28:06,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-10 01:28:06,570 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-10 01:28:06,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-10 01:28:06,570 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-10 01:28:06,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-10 01:28:06,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-10 01:28:06,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-10 01:28:06,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-10 01:28:06,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-10 01:28:06,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 01:28:06,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-10 01:28:06,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-10 01:28:06,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-10 01:28:06,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-10 01:28:06,574 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-10 01:28:06,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-10 01:28:06,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-10 01:28:06,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-10 01:28:06,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-10 01:28:06,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-10 01:28:06,646 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-10 01:28:06,647 INFO L275 PluginConnector]: CDTParser initialized [2019-08-10 01:28:06,648 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2019-08-10 01:28:06,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6496cd3/6a2ea4fd9e7a405c8f4bd3cb11ace688/FLAG53e33d7d0 [2019-08-10 01:28:07,211 INFO L306 CDTParser]: Found 1 translation units. [2019-08-10 01:28:07,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2019-08-10 01:28:07,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6496cd3/6a2ea4fd9e7a405c8f4bd3cb11ace688/FLAG53e33d7d0 [2019-08-10 01:28:07,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6496cd3/6a2ea4fd9e7a405c8f4bd3cb11ace688 [2019-08-10 01:28:07,588 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-10 01:28:07,590 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-10 01:28:07,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-10 01:28:07,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-10 01:28:07,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-10 01:28:07,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:28:07" (1/1) ... [2019-08-10 01:28:07,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69485c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:28:07, skipping insertion in model container [2019-08-10 01:28:07,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:28:07" (1/1) ... [2019-08-10 01:28:07,607 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-10 01:28:07,624 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-10 01:28:07,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:28:07,796 INFO L188 MainTranslator]: Completed pre-run [2019-08-10 01:28:07,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:28:07,824 INFO L192 MainTranslator]: Completed translation [2019-08-10 01:28:07,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:28:07 WrapperNode [2019-08-10 01:28:07,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-10 01:28:07,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-10 01:28:07,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-10 01:28:07,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-10 01:28:07,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:28:07" (1/1) ... [2019-08-10 01:28:07,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:28:07" (1/1) ... [2019-08-10 01:28:07,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:28:07" (1/1) ... [2019-08-10 01:28:07,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:28:07" (1/1) ... [2019-08-10 01:28:07,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:28:07" (1/1) ... [2019-08-10 01:28:07,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:28:07" (1/1) ... [2019-08-10 01:28:07,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:28:07" (1/1) ... [2019-08-10 01:28:07,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-10 01:28:07,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-10 01:28:07,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-10 01:28:07,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-10 01:28:07,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:28:07" (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 01:28:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-10 01:28:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-10 01:28:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-10 01:28:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-10 01:28:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-10 01:28:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-10 01:28:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-10 01:28:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-10 01:28:08,164 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-10 01:28:08,165 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-10 01:28:08,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:28:08 BoogieIcfgContainer [2019-08-10 01:28:08,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-10 01:28:08,167 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-10 01:28:08,167 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-10 01:28:08,167 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-10 01:28:08,168 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:28:08" (1/1) ... [2019-08-10 01:28:08,259 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-10 01:28:08,266 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-10 01:28:08,268 INFO L168 Benchmark]: Toolchain (without parser) took 677.96 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 87.3 MB in the beginning and 161.6 MB in the end (delta: -74.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-10 01:28:08,270 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-10 01:28:08,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.95 ms. Allocated memory is still 133.2 MB. Free memory was 87.0 MB in the beginning and 77.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-10 01:28:08,272 INFO L168 Benchmark]: Boogie Preprocessor took 137.17 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 77.8 MB in the beginning and 177.2 MB in the end (delta: -99.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2019-08-10 01:28:08,272 INFO L168 Benchmark]: RCFGBuilder took 203.78 ms. Allocated memory is still 199.8 MB. Free memory was 177.2 MB in the beginning and 166.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-08-10 01:28:08,273 INFO L168 Benchmark]: Symbolic Interpretation took 99.19 ms. Allocated memory is still 199.8 MB. Free memory was 166.6 MB in the beginning and 161.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-08-10 01:28:08,277 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: Interpreter reached this location of interest. Location might be reachable. Predicate 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 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 233.95 ms. Allocated memory is still 133.2 MB. Free memory was 87.0 MB in the beginning and 77.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.17 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 77.8 MB in the beginning and 177.2 MB in the end (delta: -99.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 203.78 ms. Allocated memory is still 199.8 MB. Free memory was 177.2 MB in the beginning and 166.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 99.19 ms. Allocated memory is still 199.8 MB. Free memory was 166.6 MB in the beginning and 161.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...