/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.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1250.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 01:10:26,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 01:10:26,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 01:10:26,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 01:10:26,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 01:10:26,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 01:10:26,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 01:10:26,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 01:10:26,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 01:10:26,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 01:10:26,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 01:10:26,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 01:10:26,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 01:10:26,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 01:10:26,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 01:10:26,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 01:10:26,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 01:10:26,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 01:10:26,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 01:10:26,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 01:10:26,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 01:10:26,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 01:10:26,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 01:10:26,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 01:10:26,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 01:10:26,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 01:10:26,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 01:10:26,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 01:10:26,411 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 [2020-07-20 01:10:26,430 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 01:10:26,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 01:10:26,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 01:10:26,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 01:10:26,433 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 01:10:26,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 01:10:26,433 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 01:10:26,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 01:10:26,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 01:10:26,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 01:10:26,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 01:10:26,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 01:10:26,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 01:10:26,436 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 01:10:26,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 01:10:26,436 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 01:10:26,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 01:10:26,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 01:10:26,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 01:10:26,437 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 01:10:26,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 01:10:26,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:10:26,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 01:10:26,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 01:10:26,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 01:10:26,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 01:10:26,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 01:10:26,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 01:10:26,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 01:10:26,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 01:10:26,742 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 01:10:26,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 01:10:26,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 01:10:26,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 01:10:26,761 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 01:10:26,762 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2020-07-20 01:10:26,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7561dae7a/49ed721d5b024d81bb3f6c6eb685a9de/FLAGbf36ff297 [2020-07-20 01:10:27,360 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 01:10:27,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2020-07-20 01:10:27,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7561dae7a/49ed721d5b024d81bb3f6c6eb685a9de/FLAGbf36ff297 [2020-07-20 01:10:27,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7561dae7a/49ed721d5b024d81bb3f6c6eb685a9de [2020-07-20 01:10:27,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 01:10:27,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 01:10:27,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 01:10:27,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 01:10:27,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 01:10:27,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:10:27" (1/1) ... [2020-07-20 01:10:27,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1aa79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:27, skipping insertion in model container [2020-07-20 01:10:27,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:10:27" (1/1) ... [2020-07-20 01:10:27,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 01:10:27,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 01:10:27,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:10:27,975 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 01:10:28,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:10:28,144 INFO L208 MainTranslator]: Completed translation [2020-07-20 01:10:28,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:28 WrapperNode [2020-07-20 01:10:28,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 01:10:28,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 01:10:28,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 01:10:28,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 01:10:28,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:28" (1/1) ... [2020-07-20 01:10:28,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:28" (1/1) ... [2020-07-20 01:10:28,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:28" (1/1) ... [2020-07-20 01:10:28,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:28" (1/1) ... [2020-07-20 01:10:28,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:28" (1/1) ... [2020-07-20 01:10:28,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:28" (1/1) ... [2020-07-20 01:10:28,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:28" (1/1) ... [2020-07-20 01:10:28,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 01:10:28,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 01:10:28,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 01:10:28,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 01:10:28,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:28" (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 [2020-07-20 01:10:28,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 01:10:28,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 01:10:28,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-20 01:10:28,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-07-20 01:10:28,291 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-07-20 01:10:28,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 01:10:28,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 01:10:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-20 01:10:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-20 01:10:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-07-20 01:10:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 01:10:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-20 01:10:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 01:10:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 01:10:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-07-20 01:10:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 01:10:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 01:10:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 01:10:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 01:10:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-20 01:10:28,583 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 01:10:28,584 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-20 01:10:28,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:10:28 BoogieIcfgContainer [2020-07-20 01:10:28,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 01:10:28,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 01:10:28,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 01:10:28,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 01:10:28,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:10:27" (1/3) ... [2020-07-20 01:10:28,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52147355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:10:28, skipping insertion in model container [2020-07-20 01:10:28,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:28" (2/3) ... [2020-07-20 01:10:28,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52147355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:10:28, skipping insertion in model container [2020-07-20 01:10:28,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:10:28" (3/3) ... [2020-07-20 01:10:28,613 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2020-07-20 01:10:28,630 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 01:10:28,639 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 01:10:28,667 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 01:10:28,692 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 01:10:28,692 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 01:10:28,692 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 01:10:28,692 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 01:10:28,693 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 01:10:28,693 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 01:10:28,693 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 01:10:28,693 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 01:10:28,713 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-20 01:10:28,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-20 01:10:28,721 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:10:28,722 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] [2020-07-20 01:10:28,722 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:10:28,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:10:28,729 INFO L82 PathProgramCache]: Analyzing trace with hash 397720622, now seen corresponding path program 1 times [2020-07-20 01:10:28,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:10:28,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377253669] [2020-07-20 01:10:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4a6405a4 [2020-07-20 01:10:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:29,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:10:29,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377253669] [2020-07-20 01:10:29,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:10:29,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 01:10:29,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482780434] [2020-07-20 01:10:29,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 01:10:29,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:10:29,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 01:10:29,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 01:10:29,070 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2020-07-20 01:10:29,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:10:29,319 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2020-07-20 01:10:29,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 01:10:29,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-07-20 01:10:29,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:10:29,333 INFO L225 Difference]: With dead ends: 71 [2020-07-20 01:10:29,333 INFO L226 Difference]: Without dead ends: 36 [2020-07-20 01:10:29,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 01:10:29,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-20 01:10:29,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-20 01:10:29,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-20 01:10:29,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-07-20 01:10:29,389 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2020-07-20 01:10:29,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:10:29,389 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-07-20 01:10:29,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 01:10:29,390 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-07-20 01:10:29,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-20 01:10:29,392 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:10:29,393 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, 1] [2020-07-20 01:10:29,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 01:10:29,393 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:10:29,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:10:29,394 INFO L82 PathProgramCache]: Analyzing trace with hash -54823803, now seen corresponding path program 1 times [2020-07-20 01:10:29,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:10:29,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744880994] [2020-07-20 01:10:29,395 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4a6405a4 [2020-07-20 01:10:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:29,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:10:29,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744880994] [2020-07-20 01:10:29,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:10:29,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 01:10:29,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257735426] [2020-07-20 01:10:29,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 01:10:29,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:10:29,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 01:10:29,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 01:10:29,651 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 6 states. [2020-07-20 01:10:29,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:10:29,924 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-07-20 01:10:29,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 01:10:29,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-20 01:10:29,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:10:29,932 INFO L225 Difference]: With dead ends: 51 [2020-07-20 01:10:29,932 INFO L226 Difference]: Without dead ends: 40 [2020-07-20 01:10:29,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-20 01:10:29,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-20 01:10:29,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-07-20 01:10:29,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-20 01:10:29,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-07-20 01:10:29,961 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2020-07-20 01:10:29,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:10:29,961 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-07-20 01:10:29,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 01:10:29,962 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-07-20 01:10:29,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-20 01:10:29,964 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:10:29,964 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, 1, 1, 1, 1] [2020-07-20 01:10:29,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 01:10:29,965 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:10:29,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:10:29,966 INFO L82 PathProgramCache]: Analyzing trace with hash -268248811, now seen corresponding path program 1 times [2020-07-20 01:10:29,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:10:29,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435174479] [2020-07-20 01:10:29,970 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4a6405a4 [2020-07-20 01:10:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:30,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:10:30,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435174479] [2020-07-20 01:10:30,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:10:30,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 01:10:30,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046745828] [2020-07-20 01:10:30,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 01:10:30,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:10:30,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 01:10:30,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 01:10:30,188 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2020-07-20 01:10:30,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:10:30,402 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-07-20 01:10:30,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 01:10:30,402 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-07-20 01:10:30,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:10:30,404 INFO L225 Difference]: With dead ends: 55 [2020-07-20 01:10:30,404 INFO L226 Difference]: Without dead ends: 44 [2020-07-20 01:10:30,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-20 01:10:30,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-20 01:10:30,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-07-20 01:10:30,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-20 01:10:30,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-07-20 01:10:30,415 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2020-07-20 01:10:30,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:10:30,415 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-07-20 01:10:30,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 01:10:30,416 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-07-20 01:10:30,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-20 01:10:30,417 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:10:30,417 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, 1, 1, 1, 1] [2020-07-20 01:10:30,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 01:10:30,417 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:10:30,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:10:30,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1239302998, now seen corresponding path program 1 times [2020-07-20 01:10:30,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:10:30,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32633266] [2020-07-20 01:10:30,419 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4a6405a4 [2020-07-20 01:10:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 01:10:30,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 01:10:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 01:10:30,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 01:10:30,582 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 01:10:30,582 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 01:10:30,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 01:10:30,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:10:30 BoogieIcfgContainer [2020-07-20 01:10:30,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 01:10:30,634 INFO L168 Benchmark]: Toolchain (without parser) took 2915.94 ms. Allocated memory was 137.9 MB in the beginning and 234.9 MB in the end (delta: 97.0 MB). Free memory was 102.4 MB in the beginning and 132.4 MB in the end (delta: -30.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB. [2020-07-20 01:10:30,636 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 01:10:30,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.30 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 181.4 MB in the end (delta: -79.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-07-20 01:10:30,640 INFO L168 Benchmark]: Boogie Preprocessor took 66.85 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 179.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-20 01:10:30,641 INFO L168 Benchmark]: RCFGBuilder took 374.38 ms. Allocated memory is still 202.9 MB. Free memory was 179.0 MB in the beginning and 160.2 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-07-20 01:10:30,647 INFO L168 Benchmark]: TraceAbstraction took 2039.40 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 159.5 MB in the beginning and 132.4 MB in the end (delta: 27.2 MB). Peak memory consumption was 59.1 MB. Max. memory is 7.1 GB. [2020-07-20 01:10:30,659 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 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 427.30 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 181.4 MB in the end (delta: -79.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.85 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 179.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 374.38 ms. Allocated memory is still 202.9 MB. Free memory was 179.0 MB in the beginning and 160.2 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2039.40 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 159.5 MB in the beginning and 132.4 MB in the end (delta: 27.2 MB). Peak memory consumption was 59.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 67. Possible FailurePath: [L67] double x = 0.0 / 0.0; [L68] double y = 0.0 / 0.0; [L69] CALL, EXPR fmax_double(x, y) VAL [\old(x)=2146435077, \old(y)=2146435078] [L55] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=2146435077] [L27] __uint32_t msw, lsw; VAL [\old(x)=2146435077, x=2146435077] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (msw) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lsw) = ew_u.parts.lsw [L36-L37] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=2146435077, lsw=1, msw=2146435073, x=2146435077] [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=2146435077, lsw=1, msw=2146435073, x=2146435077] [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=2146435077, lsw=1, msw=2146435073, x=2146435077] [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L50] return 0; VAL [\old(x)=2146435077, \result=0, lsw=1, msw=2146435073, x=2146435077] [L55] RET, EXPR __fpclassify_double(x) VAL [\old(x)=2146435077, \old(y)=2146435078, __fpclassify_double(x)=0, x=2146435077, y=2146435078] [L55] COND TRUE __fpclassify_double(x) == 0 [L56] return y; VAL [\old(x)=2146435077, \old(y)=2146435078, \result=2146435078, x=2146435077, y=2146435078] [L69] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=2146435078, x=2146435077, y=2146435078] [L69] double res = fmax_double(x, y); [L71] CALL, EXPR isnan_double(res) VAL [\old(x)=2146435078] [L16] return x != x; VAL [\old(x)=2146435078, \result=0, x=2146435078] [L71] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=2146435078, x=2146435077, y=2146435078] [L71] COND TRUE !isnan_double(res) [L72] __VERIFIER_error() VAL [res=2146435078, x=2146435077, y=2146435078] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 108 SDslu, 43 SDs, 0 SdLazy, 255 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 0.5s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 5222 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...