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-cdfpl/square_3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-10 01:25:45,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-10 01:25:45,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-10 01:25:45,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-10 01:25:45,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-10 01:25:45,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-10 01:25:45,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-10 01:25:45,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-10 01:25:45,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-10 01:25:45,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-10 01:25:45,390 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-10 01:25:45,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-10 01:25:45,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-10 01:25:45,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-10 01:25:45,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-10 01:25:45,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-10 01:25:45,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-10 01:25:45,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-10 01:25:45,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-10 01:25:45,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-10 01:25:45,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-10 01:25:45,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-10 01:25:45,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-10 01:25:45,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-10 01:25:45,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-10 01:25:45,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-10 01:25:45,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-10 01:25:45,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-10 01:25:45,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-10 01:25:45,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-10 01:25:45,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-10 01:25:45,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-10 01:25:45,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-10 01:25:45,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-10 01:25:45,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-10 01:25:45,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-10 01:25:45,415 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 01:25:45,429 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-10 01:25:45,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-10 01:25:45,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-10 01:25:45,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-10 01:25:45,431 INFO L138 SettingsManager]: * Use SBE=true [2019-08-10 01:25:45,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-10 01:25:45,432 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-10 01:25:45,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-10 01:25:45,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-10 01:25:45,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-10 01:25:45,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-10 01:25:45,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-10 01:25:45,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-10 01:25:45,433 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-10 01:25:45,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-10 01:25:45,434 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-10 01:25:45,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-10 01:25:45,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-10 01:25:45,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-10 01:25:45,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-10 01:25:45,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-10 01:25:45,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 01:25:45,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-10 01:25:45,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-10 01:25:45,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-10 01:25:45,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-10 01:25:45,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-10 01:25:45,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-10 01:25:45,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-10 01:25:45,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-10 01:25:45,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-10 01:25:45,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-10 01:25:45,483 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-10 01:25:45,484 INFO L275 PluginConnector]: CDTParser initialized [2019-08-10 01:25:45,484 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/square_3.i [2019-08-10 01:25:45,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0072245e9/9309f018eb4f4be7941f595e29a2a5ae/FLAG2d61dc060 [2019-08-10 01:25:45,999 INFO L306 CDTParser]: Found 1 translation units. [2019-08-10 01:25:46,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/square_3.i [2019-08-10 01:25:46,007 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0072245e9/9309f018eb4f4be7941f595e29a2a5ae/FLAG2d61dc060 [2019-08-10 01:25:46,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0072245e9/9309f018eb4f4be7941f595e29a2a5ae [2019-08-10 01:25:46,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-10 01:25:46,408 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-10 01:25:46,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-10 01:25:46,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-10 01:25:46,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-10 01:25:46,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:25:46" (1/1) ... [2019-08-10 01:25:46,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60307431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:25:46, skipping insertion in model container [2019-08-10 01:25:46,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:25:46" (1/1) ... [2019-08-10 01:25:46,429 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-10 01:25:46,447 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-10 01:25:46,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:25:46,665 INFO L188 MainTranslator]: Completed pre-run [2019-08-10 01:25:46,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:25:46,706 INFO L192 MainTranslator]: Completed translation [2019-08-10 01:25:46,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:25:46 WrapperNode [2019-08-10 01:25:46,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-10 01:25:46,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-10 01:25:46,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-10 01:25:46,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-10 01:25:46,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:25:46" (1/1) ... [2019-08-10 01:25:46,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:25:46" (1/1) ... [2019-08-10 01:25:46,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:25:46" (1/1) ... [2019-08-10 01:25:46,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:25:46" (1/1) ... [2019-08-10 01:25:46,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:25:46" (1/1) ... [2019-08-10 01:25:46,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:25:46" (1/1) ... [2019-08-10 01:25:46,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:25:46" (1/1) ... [2019-08-10 01:25:46,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-10 01:25:46,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-10 01:25:46,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-10 01:25:46,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-10 01:25:46,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:25:46" (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 01:25:46,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-10 01:25:46,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-10 01:25:46,891 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-10 01:25:46,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-10 01:25:46,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-10 01:25:46,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-08-10 01:25:46,891 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-10 01:25:46,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-10 01:25:46,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-10 01:25:47,020 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-10 01:25:47,021 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-10 01:25:47,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:25:47 BoogieIcfgContainer [2019-08-10 01:25:47,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-10 01:25:47,022 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-10 01:25:47,022 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-10 01:25:47,023 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-10 01:25:47,024 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:25:47" (1/1) ... [2019-08-10 01:25:47,100 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-10 01:25:47,106 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-10 01:25:47,108 INFO L168 Benchmark]: Toolchain (without parser) took 699.45 ms. Allocated memory was 130.5 MB in the beginning and 197.7 MB in the end (delta: 67.1 MB). Free memory was 86.3 MB in the beginning and 160.2 MB in the end (delta: -74.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-10 01:25:47,110 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 130.5 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-10 01:25:47,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.74 ms. Allocated memory is still 130.5 MB. Free memory was 86.1 MB in the beginning and 76.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-08-10 01:25:47,112 INFO L168 Benchmark]: Boogie Preprocessor took 119.29 ms. Allocated memory was 130.5 MB in the beginning and 197.7 MB in the end (delta: 67.1 MB). Free memory was 76.7 MB in the beginning and 175.0 MB in the end (delta: -98.3 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-08-10 01:25:47,113 INFO L168 Benchmark]: RCFGBuilder took 194.69 ms. Allocated memory is still 197.7 MB. Free memory was 174.4 MB in the beginning and 164.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-08-10 01:25:47,114 INFO L168 Benchmark]: Symbolic Interpretation took 83.67 ms. Allocated memory is still 197.7 MB. Free memory was 164.1 MB in the beginning and 160.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-08-10 01:25:47,118 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 15]: 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 12#(= main_~x~0 main_~IN~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 130.5 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.74 ms. Allocated memory is still 130.5 MB. Free memory was 86.1 MB in the beginning and 76.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.29 ms. Allocated memory was 130.5 MB in the beginning and 197.7 MB in the end (delta: 67.1 MB). Free memory was 76.7 MB in the beginning and 175.0 MB in the end (delta: -98.3 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 194.69 ms. Allocated memory is still 197.7 MB. Free memory was 174.4 MB in the beginning and 164.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 83.67 ms. Allocated memory is still 197.7 MB. Free memory was 164.1 MB in the beginning and 160.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...