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/filter2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-31 00:47:39,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 00:47:39,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 00:47:39,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 00:47:39,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 00:47:39,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 00:47:39,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 00:47:39,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 00:47:39,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 00:47:39,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 00:47:39,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 00:47:39,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-31 00:47:39,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-31 00:47:39,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-31 00:47:39,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-31 00:47:39,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-31 00:47:39,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-31 00:47:39,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-31 00:47:39,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-31 00:47:39,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-31 00:47:39,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-31 00:47:39,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-31 00:47:39,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-31 00:47:39,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-31 00:47:39,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-31 00:47:39,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-31 00:47:39,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-31 00:47:39,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-31 00:47:39,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-31 00:47:39,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-31 00:47:39,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-31 00:47:39,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-31 00:47:39,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-31 00:47:39,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-31 00:47:39,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-31 00:47:39,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-31 00:47:39,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-31 00:47:39,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-31 00:47:39,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 00:47:39,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 00:47:39,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 00:47:39,376 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 [2019-08-31 00:47:39,391 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 00:47:39,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 00:47:39,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 00:47:39,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 00:47:39,393 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 00:47:39,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 00:47:39,393 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 00:47:39,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 00:47:39,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 00:47:39,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 00:47:39,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 00:47:39,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 00:47:39,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 00:47:39,394 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 00:47:39,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 00:47:39,395 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 00:47:39,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 00:47:39,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 00:47:39,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 00:47:39,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 00:47:39,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 00:47:39,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 00:47:39,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 00:47:39,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 00:47:39,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 00:47:39,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 00:47:39,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 00:47:39,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 00:47:39,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 00:47:39,426 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 00:47:39,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 00:47:39,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 00:47:39,443 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 00:47:39,444 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 00:47:39,444 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/filter2.c [2019-08-31 00:47:39,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db675eb39/22cbe0f739fc40d68cb1ed497463355c/FLAG6c37cc957 [2019-08-31 00:47:39,988 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 00:47:39,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter2.c [2019-08-31 00:47:39,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db675eb39/22cbe0f739fc40d68cb1ed497463355c/FLAG6c37cc957 [2019-08-31 00:47:40,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db675eb39/22cbe0f739fc40d68cb1ed497463355c [2019-08-31 00:47:40,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 00:47:40,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 00:47:40,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 00:47:40,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 00:47:40,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 00:47:40,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:47:40" (1/1) ... [2019-08-31 00:47:40,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698ff5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:47:40, skipping insertion in model container [2019-08-31 00:47:40,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:47:40" (1/1) ... [2019-08-31 00:47:40,367 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 00:47:40,387 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 00:47:40,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 00:47:40,555 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 00:47:40,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 00:47:40,594 INFO L192 MainTranslator]: Completed translation [2019-08-31 00:47:40,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:47:40 WrapperNode [2019-08-31 00:47:40,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 00:47:40,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 00:47:40,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 00:47:40,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 00:47:40,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:47:40" (1/1) ... [2019-08-31 00:47:40,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:47:40" (1/1) ... [2019-08-31 00:47:40,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:47:40" (1/1) ... [2019-08-31 00:47:40,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:47:40" (1/1) ... [2019-08-31 00:47:40,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:47:40" (1/1) ... [2019-08-31 00:47:40,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:47:40" (1/1) ... [2019-08-31 00:47:40,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:47:40" (1/1) ... [2019-08-31 00:47:40,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 00:47:40,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 00:47:40,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 00:47:40,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 00:47:40,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:47:40" (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 [2019-08-31 00:47:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 00:47:40,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 00:47:40,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-31 00:47:40,762 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 00:47:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 00:47:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-08-31 00:47:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-31 00:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-31 00:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 00:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 00:47:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 00:47:40,945 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 00:47:40,945 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-31 00:47:40,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:47:40 BoogieIcfgContainer [2019-08-31 00:47:40,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 00:47:40,952 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 00:47:40,953 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 00:47:40,953 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 00:47:40,954 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:47:40" (1/1) ... [2019-08-31 00:47:40,985 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 00:47:40,985 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 00:47:40,992 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-31 00:47:41,001 INFO L179 IcfgInterpreter]: Starting interpretation [2019-08-31 00:47:41,002 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-08-31 00:47:41,049 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs