/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 05:57:18,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 05:57:18,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 05:57:18,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 05:57:18,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 05:57:18,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 05:57:18,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 05:57:18,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 05:57:18,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 05:57:18,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 05:57:18,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 05:57:18,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 05:57:18,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 05:57:18,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 05:57:18,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 05:57:18,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 05:57:18,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 05:57:18,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 05:57:18,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 05:57:18,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 05:57:18,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 05:57:18,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 05:57:18,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 05:57:18,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 05:57:18,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 05:57:18,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 05:57:18,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 05:57:18,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 05:57:18,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 05:57:18,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 05:57:18,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 05:57:18,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 05:57:18,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 05:57:18,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 05:57:18,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 05:57:18,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 05:57:18,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 05:57:18,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 05:57:18,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 05:57:18,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 05:57:18,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 05:57:18,589 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 05:57:18,611 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 05:57:18,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 05:57:18,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 05:57:18,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 05:57:18,613 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 05:57:18,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 05:57:18,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 05:57:18,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 05:57:18,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 05:57:18,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 05:57:18,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 05:57:18,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 05:57:18,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 05:57:18,615 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 05:57:18,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 05:57:18,615 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 05:57:18,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 05:57:18,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 05:57:18,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 05:57:18,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 05:57:18,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 05:57:18,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 05:57:18,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 05:57:18,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 05:57:18,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 05:57:18,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 05:57:18,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 05:57:18,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 05:57:18,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 05:57:18,618 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=SMALLESTAMONGWIDE;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; [2020-08-19 05:57:18,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 05:57:18,967 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 05:57:18,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 05:57:18,972 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 05:57:18,972 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 05:57:18,973 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232a.c [2020-08-19 05:57:19,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5c6d3fc5/6eacf4a1f5e44bdebb3cd396ec380cb8/FLAG52ca3a554 [2020-08-19 05:57:19,509 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 05:57:19,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1232a.c [2020-08-19 05:57:19,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5c6d3fc5/6eacf4a1f5e44bdebb3cd396ec380cb8/FLAG52ca3a554 [2020-08-19 05:57:19,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5c6d3fc5/6eacf4a1f5e44bdebb3cd396ec380cb8 [2020-08-19 05:57:19,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 05:57:19,900 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 05:57:19,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 05:57:19,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 05:57:19,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 05:57:19,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:57:19" (1/1) ... [2020-08-19 05:57:19,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e5b57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:57:19, skipping insertion in model container [2020-08-19 05:57:19,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:57:19" (1/1) ... [2020-08-19 05:57:19,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 05:57:19,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 05:57:20,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:57:20,143 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 05:57:20,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:57:20,286 INFO L208 MainTranslator]: Completed translation [2020-08-19 05:57:20,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:57:20 WrapperNode [2020-08-19 05:57:20,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 05:57:20,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 05:57:20,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 05:57:20,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 05:57:20,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:57:20" (1/1) ... [2020-08-19 05:57:20,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:57:20" (1/1) ... [2020-08-19 05:57:20,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:57:20" (1/1) ... [2020-08-19 05:57:20,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:57:20" (1/1) ... [2020-08-19 05:57:20,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:57:20" (1/1) ... [2020-08-19 05:57:20,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:57:20" (1/1) ... [2020-08-19 05:57:20,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:57:20" (1/1) ... [2020-08-19 05:57:20,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 05:57:20,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 05:57:20,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 05:57:20,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 05:57:20,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:57:20" (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 05:57:20,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 05:57:20,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 05:57:20,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-19 05:57:20,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-19 05:57:20,400 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-08-19 05:57:20,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-08-19 05:57:20,401 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 05:57:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 05:57:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-19 05:57:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-19 05:57:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-19 05:57:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 05:57:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-19 05:57:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 05:57:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 05:57:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-08-19 05:57:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-08-19 05:57:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 05:57:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 05:57:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 05:57:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 05:57:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-19 05:57:20,740 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 05:57:20,741 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 05:57:20,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:57:20 BoogieIcfgContainer [2020-08-19 05:57:20,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 05:57:20,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 05:57:20,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 05:57:20,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 05:57:20,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 05:57:19" (1/3) ... [2020-08-19 05:57:20,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a130bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:57:20, skipping insertion in model container [2020-08-19 05:57:20,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:57:20" (2/3) ... [2020-08-19 05:57:20,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a130bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:57:20, skipping insertion in model container [2020-08-19 05:57:20,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:57:20" (3/3) ... [2020-08-19 05:57:20,754 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2020-08-19 05:57:20,766 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 05:57:20,776 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 05:57:20,792 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 05:57:20,821 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 05:57:20,821 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 05:57:20,821 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 05:57:20,821 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 05:57:20,821 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 05:57:20,822 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 05:57:20,822 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 05:57:20,822 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 05:57:20,842 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-08-19 05:57:20,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-19 05:57:20,849 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:57:20,850 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 05:57:20,851 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:57:20,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:57:20,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1786760399, now seen corresponding path program 1 times [2020-08-19 05:57:20,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:57:20,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388576330] [2020-08-19 05:57:20,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:57:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:21,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:57:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:21,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:57:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:21,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:57:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:21,122 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 05:57:21,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388576330] [2020-08-19 05:57:21,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:57:21,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 05:57:21,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469882693] [2020-08-19 05:57:21,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 05:57:21,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:57:21,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 05:57:21,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 05:57:21,146 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 4 states. [2020-08-19 05:57:21,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:57:21,393 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2020-08-19 05:57:21,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 05:57:21,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-08-19 05:57:21,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:57:21,405 INFO L225 Difference]: With dead ends: 79 [2020-08-19 05:57:21,406 INFO L226 Difference]: Without dead ends: 40 [2020-08-19 05:57:21,410 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 05:57:21,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-08-19 05:57:21,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-08-19 05:57:21,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-19 05:57:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-08-19 05:57:21,461 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 22 [2020-08-19 05:57:21,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:57:21,461 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-08-19 05:57:21,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 05:57:21,462 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-08-19 05:57:21,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-19 05:57:21,464 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:57:21,465 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 05:57:21,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 05:57:21,465 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:57:21,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:57:21,466 INFO L82 PathProgramCache]: Analyzing trace with hash -952976765, now seen corresponding path program 1 times [2020-08-19 05:57:21,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:57:21,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717529816] [2020-08-19 05:57:21,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:57:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:21,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:57:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:21,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:57:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:21,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:57:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:21,673 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 05:57:21,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717529816] [2020-08-19 05:57:21,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:57:21,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:57:21,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144775266] [2020-08-19 05:57:21,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:57:21,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:57:21,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:57:21,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:57:21,678 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2020-08-19 05:57:22,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:57:22,042 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-08-19 05:57:22,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 05:57:22,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-08-19 05:57:22,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:57:22,050 INFO L225 Difference]: With dead ends: 59 [2020-08-19 05:57:22,050 INFO L226 Difference]: Without dead ends: 44 [2020-08-19 05:57:22,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-19 05:57:22,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-19 05:57:22,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-08-19 05:57:22,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-19 05:57:22,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-08-19 05:57:22,080 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2020-08-19 05:57:22,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:57:22,081 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-08-19 05:57:22,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:57:22,081 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-08-19 05:57:22,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 05:57:22,086 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:57:22,087 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 05:57:22,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 05:57:22,087 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:57:22,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:57:22,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1944362408, now seen corresponding path program 1 times [2020-08-19 05:57:22,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:57:22,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422750747] [2020-08-19 05:57:22,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:57:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:22,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:57:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:22,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:57:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:22,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:57:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:57:22,242 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 05:57:22,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422750747] [2020-08-19 05:57:22,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:57:22,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:57:22,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335195043] [2020-08-19 05:57:22,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:57:22,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:57:22,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:57:22,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:57:22,246 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 6 states. [2020-08-19 05:57:22,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:57:22,484 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2020-08-19 05:57:22,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 05:57:22,485 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-19 05:57:22,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:57:22,487 INFO L225 Difference]: With dead ends: 63 [2020-08-19 05:57:22,487 INFO L226 Difference]: Without dead ends: 48 [2020-08-19 05:57:22,488 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 05:57:22,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-19 05:57:22,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-08-19 05:57:22,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-19 05:57:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-08-19 05:57:22,498 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 26 [2020-08-19 05:57:22,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:57:22,498 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-08-19 05:57:22,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:57:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-08-19 05:57:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 05:57:22,500 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:57:22,500 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 05:57:22,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 05:57:22,501 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:57:22,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:57:22,501 INFO L82 PathProgramCache]: Analyzing trace with hash 553653529, now seen corresponding path program 1 times [2020-08-19 05:57:22,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:57:22,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220422627] [2020-08-19 05:57:22,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:57:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 05:57:22,527 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 05:57:22,527 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 05:57:22,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 05:57:22,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 05:57:22 BoogieIcfgContainer [2020-08-19 05:57:22,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 05:57:22,555 INFO L168 Benchmark]: Toolchain (without parser) took 2654.04 ms. Allocated memory was 140.0 MB in the beginning and 236.5 MB in the end (delta: 96.5 MB). Free memory was 102.7 MB in the beginning and 139.1 MB in the end (delta: -36.4 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. [2020-08-19 05:57:22,556 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-19 05:57:22,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.44 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.5 MB in the beginning and 179.9 MB in the end (delta: -77.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-08-19 05:57:22,558 INFO L168 Benchmark]: Boogie Preprocessor took 41.39 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 177.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-08-19 05:57:22,559 INFO L168 Benchmark]: RCFGBuilder took 417.07 ms. Allocated memory is still 202.4 MB. Free memory was 177.3 MB in the beginning and 156.2 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-08-19 05:57:22,560 INFO L168 Benchmark]: TraceAbstraction took 1804.02 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 156.2 MB in the beginning and 139.1 MB in the end (delta: 17.1 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. [2020-08-19 05:57:22,564 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 384.44 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.5 MB in the beginning and 179.9 MB in the end (delta: -77.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.39 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 177.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 417.07 ms. Allocated memory is still 202.4 MB. Free memory was 177.3 MB in the beginning and 156.2 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1804.02 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 156.2 MB in the beginning and 139.1 MB in the end (delta: 17.1 MB). Peak memory consumption was 51.2 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 75. 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, 0.5s 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...