/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 01:06:00,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 01:06:00,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 01:06:00,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 01:06:00,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 01:06:00,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 01:06:00,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 01:06:00,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 01:06:00,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 01:06:00,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 01:06:00,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 01:06:00,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 01:06:00,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 01:06:00,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 01:06:00,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 01:06:00,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 01:06:00,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 01:06:00,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 01:06:00,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 01:06:00,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 01:06:00,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 01:06:00,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 01:06:00,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 01:06:00,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 01:06:00,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 01:06:00,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 01:06:00,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 01:06:00,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 01:06:00,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 01:06:00,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 01:06:00,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 01:06:00,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 01:06:00,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 01:06:00,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 01:06:00,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 01:06:00,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 01:06:00,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 01:06:00,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 01:06:00,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 01:06:00,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 01:06:00,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 01:06:00,305 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 01:06:00,327 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 01:06:00,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 01:06:00,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 01:06:00,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 01:06:00,329 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 01:06:00,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 01:06:00,329 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 01:06:00,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 01:06:00,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 01:06:00,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 01:06:00,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 01:06:00,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 01:06:00,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 01:06:00,331 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 01:06:00,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 01:06:00,331 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 01:06:00,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 01:06:00,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 01:06:00,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 01:06:00,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 01:06:00,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 01:06:00,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 01:06:00,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 01:06:00,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 01:06:00,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 01:06:00,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 01:06:00,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 01:06:00,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 01:06:00,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 01:06:00,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; [2020-08-19 01:06:00,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 01:06:00,670 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 01:06:00,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 01:06:00,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 01:06:00,681 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 01:06:00,681 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-08-19 01:06:00,765 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5369098b/940986b222414fd989a6115d1fcc1a7c/FLAGa5d1d0010 [2020-08-19 01:06:01,189 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 01:06:01,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-08-19 01:06:01,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5369098b/940986b222414fd989a6115d1fcc1a7c/FLAGa5d1d0010 [2020-08-19 01:06:01,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5369098b/940986b222414fd989a6115d1fcc1a7c [2020-08-19 01:06:01,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 01:06:01,231 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 01:06:01,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 01:06:01,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 01:06:01,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 01:06:01,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:06:01" (1/1) ... [2020-08-19 01:06:01,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@490952e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:06:01, skipping insertion in model container [2020-08-19 01:06:01,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:06:01" (1/1) ... [2020-08-19 01:06:01,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 01:06:01,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 01:06:01,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:06:01,529 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 01:06:01,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:06:01,675 INFO L208 MainTranslator]: Completed translation [2020-08-19 01:06:01,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:06:01 WrapperNode [2020-08-19 01:06:01,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 01:06:01,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 01:06:01,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 01:06:01,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 01:06:01,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:06:01" (1/1) ... [2020-08-19 01:06:01,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:06:01" (1/1) ... [2020-08-19 01:06:01,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:06:01" (1/1) ... [2020-08-19 01:06:01,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:06:01" (1/1) ... [2020-08-19 01:06:01,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:06:01" (1/1) ... [2020-08-19 01:06:01,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:06:01" (1/1) ... [2020-08-19 01:06:01,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:06:01" (1/1) ... [2020-08-19 01:06:01,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 01:06:01,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 01:06:01,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 01:06:01,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 01:06:01,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:06:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-19 01:06:01,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 01:06:01,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 01:06:01,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-19 01:06:01,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-19 01:06:01,794 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-08-19 01:06:01,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-08-19 01:06:01,794 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 01:06:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 01:06:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-19 01:06:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-19 01:06:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-19 01:06:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 01:06:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-19 01:06:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 01:06:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 01:06:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-08-19 01:06:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-08-19 01:06:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 01:06:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 01:06:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 01:06:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-19 01:06:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 01:06:02,150 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 01:06:02,150 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 01:06:02,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:06:02 BoogieIcfgContainer [2020-08-19 01:06:02,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 01:06:02,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 01:06:02,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 01:06:02,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 01:06:02,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 01:06:01" (1/3) ... [2020-08-19 01:06:02,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5885cd79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:06:02, skipping insertion in model container [2020-08-19 01:06:02,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:06:01" (2/3) ... [2020-08-19 01:06:02,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5885cd79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:06:02, skipping insertion in model container [2020-08-19 01:06:02,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:06:02" (3/3) ... [2020-08-19 01:06:02,166 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232b.c [2020-08-19 01:06:02,179 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 01:06:02,186 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 01:06:02,202 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 01:06:02,230 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 01:06:02,230 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 01:06:02,231 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 01:06:02,231 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 01:06:02,231 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 01:06:02,231 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 01:06:02,231 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 01:06:02,231 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 01:06:02,255 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-08-19 01:06:02,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-19 01:06:02,263 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:06:02,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:06:02,264 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:06:02,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:06:02,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1786760399, now seen corresponding path program 1 times [2020-08-19 01:06:02,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:06:02,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393816353] [2020-08-19 01:06:02,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:06:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:02,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:06:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:02,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:06:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:02,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:06:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:06:02,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1393816353] [2020-08-19 01:06:02,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:06:02,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 01:06:02,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092006778] [2020-08-19 01:06:02,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 01:06:02,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:06:02,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 01:06:02,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 01:06:02,552 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 4 states. [2020-08-19 01:06:02,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:06:02,864 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2020-08-19 01:06:02,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 01:06:02,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-08-19 01:06:02,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:06:02,884 INFO L225 Difference]: With dead ends: 79 [2020-08-19 01:06:02,885 INFO L226 Difference]: Without dead ends: 40 [2020-08-19 01:06:02,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 01:06:02,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-08-19 01:06:02,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-08-19 01:06:02,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-19 01:06:02,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-08-19 01:06:02,981 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 22 [2020-08-19 01:06:02,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:06:02,983 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-08-19 01:06:02,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 01:06:02,984 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-08-19 01:06:02,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-19 01:06:02,988 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:06:02,988 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:06:02,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 01:06:02,989 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:06:02,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:06:02,989 INFO L82 PathProgramCache]: Analyzing trace with hash -952976765, now seen corresponding path program 1 times [2020-08-19 01:06:02,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:06:02,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455822187] [2020-08-19 01:06:02,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:06:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:03,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:06:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:06:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:03,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:06:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:03,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:06:03,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455822187] [2020-08-19 01:06:03,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:06:03,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 01:06:03,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645338808] [2020-08-19 01:06:03,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 01:06:03,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:06:03,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 01:06:03,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 01:06:03,217 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2020-08-19 01:06:03,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:06:03,483 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-08-19 01:06:03,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 01:06:03,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-08-19 01:06:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:06:03,487 INFO L225 Difference]: With dead ends: 59 [2020-08-19 01:06:03,487 INFO L226 Difference]: Without dead ends: 44 [2020-08-19 01:06:03,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-19 01:06:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-19 01:06:03,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-08-19 01:06:03,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-19 01:06:03,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-08-19 01:06:03,501 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2020-08-19 01:06:03,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:06:03,502 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-08-19 01:06:03,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 01:06:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-08-19 01:06:03,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 01:06:03,503 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:06:03,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:06:03,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 01:06:03,504 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:06:03,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:06:03,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1944362408, now seen corresponding path program 1 times [2020-08-19 01:06:03,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:06:03,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307710094] [2020-08-19 01:06:03,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:06:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:03,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:06:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:03,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:06:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:03,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:06:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:06:03,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:06:03,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307710094] [2020-08-19 01:06:03,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:06:03,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 01:06:03,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603829055] [2020-08-19 01:06:03,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 01:06:03,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:06:03,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 01:06:03,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 01:06:03,668 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 6 states. [2020-08-19 01:06:03,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:06:03,887 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2020-08-19 01:06:03,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 01:06:03,888 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-19 01:06:03,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:06:03,890 INFO L225 Difference]: With dead ends: 63 [2020-08-19 01:06:03,890 INFO L226 Difference]: Without dead ends: 48 [2020-08-19 01:06:03,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-19 01:06:03,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-19 01:06:03,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-08-19 01:06:03,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-19 01:06:03,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-08-19 01:06:03,901 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 26 [2020-08-19 01:06:03,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:06:03,902 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-08-19 01:06:03,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 01:06:03,902 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-08-19 01:06:03,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 01:06:03,903 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:06:03,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:06:03,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 01:06:03,904 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:06:03,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:06:03,904 INFO L82 PathProgramCache]: Analyzing trace with hash 553653529, now seen corresponding path program 1 times [2020-08-19 01:06:03,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:06:03,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452546750] [2020-08-19 01:06:03,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:06:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 01:06:03,929 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 01:06:03,930 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 01:06:03,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 01:06:03,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 01:06:03 BoogieIcfgContainer [2020-08-19 01:06:03,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 01:06:03,956 INFO L168 Benchmark]: Toolchain (without parser) took 2725.11 ms. Allocated memory was 137.9 MB in the beginning and 233.3 MB in the end (delta: 95.4 MB). Free memory was 101.1 MB in the beginning and 140.1 MB in the end (delta: -39.0 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. [2020-08-19 01:06:03,957 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-19 01:06:03,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.13 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 100.9 MB in the beginning and 181.3 MB in the end (delta: -80.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-08-19 01:06:03,959 INFO L168 Benchmark]: Boogie Preprocessor took 48.82 ms. Allocated memory is still 203.4 MB. Free memory was 181.3 MB in the beginning and 179.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-08-19 01:06:03,960 INFO L168 Benchmark]: RCFGBuilder took 429.76 ms. Allocated memory is still 203.4 MB. Free memory was 179.2 MB in the beginning and 158.0 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-08-19 01:06:03,961 INFO L168 Benchmark]: TraceAbstraction took 1796.07 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 157.3 MB in the beginning and 140.1 MB in the end (delta: 17.2 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2020-08-19 01:06:03,965 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 445.13 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 100.9 MB in the beginning and 181.3 MB in the end (delta: -80.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.82 ms. Allocated memory is still 203.4 MB. Free memory was 181.3 MB in the beginning and 179.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 429.76 ms. Allocated memory is still 203.4 MB. Free memory was 179.2 MB in the beginning and 158.0 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1796.07 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 157.3 MB in the beginning and 140.1 MB in the end (delta: 17.2 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someUnaryDOUBLEoperation at line 74. Possible FailurePath: [L74] double x = -0.0; [L75] double y = 0.0; [L76] CALL, EXPR fmin_double(x, y) [L46] CALL, EXPR __fpclassify_double(x) [L19] __uint32_t msw, lsw; [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (msw) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (lsw) = ew_u.parts.lsw [L28-L29] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L31-L32] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L34-L35] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L38-L39] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L42] return 0; [L46] RET, EXPR __fpclassify_double(x) [L46] COND TRUE __fpclassify_double(x) == 0 [L47] return y; [L76] RET, EXPR fmin_double(x, y) [L76] double res = fmin_double(x, y); [L79] EXPR res == -0.0 && __signbit_double(res) == 1 [L79] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 117 SDslu, 43 SDs, 0 SdLazy, 296 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 4170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...