/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 12:58:49,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 12:58:49,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 12:58:49,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 12:58:49,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 12:58:49,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 12:58:49,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 12:58:49,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 12:58:49,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 12:58:49,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 12:58:49,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 12:58:49,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 12:58:49,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 12:58:49,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 12:58:49,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 12:58:49,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 12:58:49,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 12:58:49,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 12:58:49,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 12:58:49,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 12:58:49,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 12:58:49,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 12:58:49,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 12:58:49,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 12:58:49,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 12:58:49,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 12:58:49,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 12:58:49,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 12:58:49,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 12:58:49,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 12:58:49,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 12:58:49,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 12:58:49,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 12:58:49,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 12:58:49,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 12:58:49,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 12:58:49,811 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 [2020-09-04 12:58:49,854 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 12:58:49,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 12:58:49,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 12:58:49,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 12:58:49,857 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 12:58:49,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 12:58:49,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 12:58:49,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 12:58:49,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 12:58:49,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 12:58:49,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 12:58:49,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 12:58:49,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 12:58:49,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 12:58:49,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 12:58:49,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 12:58:49,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 12:58:49,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 12:58:49,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 12:58:49,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 12:58:49,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 12:58:49,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 12:58:49,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 12:58:49,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 12:58:49,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 12:58:49,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 12:58:49,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 12:58:49,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 12:58:49,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 12:58:49,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 12:58:50,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 12:58:50,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 12:58:50,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 12:58:50,312 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 12:58:50,313 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 12:58:50,314 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-09-04 12:58:50,404 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc5d428bd/499d5d1245604aeeb355e454859c7d61/FLAG2a3f6b09c [2020-09-04 12:58:50,933 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 12:58:50,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-09-04 12:58:50,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc5d428bd/499d5d1245604aeeb355e454859c7d61/FLAG2a3f6b09c [2020-09-04 12:58:51,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc5d428bd/499d5d1245604aeeb355e454859c7d61 [2020-09-04 12:58:51,286 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 12:58:51,288 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 12:58:51,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 12:58:51,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 12:58:51,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 12:58:51,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 12:58:51" (1/1) ... [2020-09-04 12:58:51,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693e2903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:51, skipping insertion in model container [2020-09-04 12:58:51,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 12:58:51" (1/1) ... [2020-09-04 12:58:51,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 12:58:51,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 12:58:51,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 12:58:51,581 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 12:58:51,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 12:58:51,634 INFO L208 MainTranslator]: Completed translation [2020-09-04 12:58:51,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:51 WrapperNode [2020-09-04 12:58:51,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 12:58:51,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 12:58:51,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 12:58:51,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 12:58:51,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:51" (1/1) ... [2020-09-04 12:58:51,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:51" (1/1) ... [2020-09-04 12:58:51,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:51" (1/1) ... [2020-09-04 12:58:51,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:51" (1/1) ... [2020-09-04 12:58:51,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:51" (1/1) ... [2020-09-04 12:58:51,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:51" (1/1) ... [2020-09-04 12:58:51,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:51" (1/1) ... [2020-09-04 12:58:51,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 12:58:51,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 12:58:51,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 12:58:51,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 12:58:51,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:51" (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 [2020-09-04 12:58:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 12:58:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 12:58:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-04 12:58:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-09-04 12:58:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-09-04 12:58:51,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 12:58:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 12:58:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-04 12:58:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-04 12:58:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-09-04 12:58:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 12:58:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 12:58:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 12:58:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 12:58:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-09-04 12:58:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 12:58:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 12:58:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 12:58:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 12:58:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 12:58:52,155 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 12:58:52,156 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-04 12:58:52,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 12:58:52 BoogieIcfgContainer [2020-09-04 12:58:52,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 12:58:52,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 12:58:52,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 12:58:52,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 12:58:52,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 12:58:51" (1/3) ... [2020-09-04 12:58:52,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725f911f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 12:58:52, skipping insertion in model container [2020-09-04 12:58:52,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:51" (2/3) ... [2020-09-04 12:58:52,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725f911f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 12:58:52, skipping insertion in model container [2020-09-04 12:58:52,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 12:58:52" (3/3) ... [2020-09-04 12:58:52,171 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2020-09-04 12:58:52,183 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 12:58:52,193 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 12:58:52,215 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 12:58:52,248 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 12:58:52,249 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 12:58:52,249 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 12:58:52,249 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 12:58:52,249 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 12:58:52,249 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 12:58:52,250 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 12:58:52,250 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 12:58:52,271 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-09-04 12:58:52,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-04 12:58:52,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:58:52,280 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] [2020-09-04 12:58:52,280 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:58:52,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:58:52,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1800374877, now seen corresponding path program 1 times [2020-09-04 12:58:52,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:58:52,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358637801] [2020-09-04 12:58:52,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:58:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:52,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:58:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:52,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:58:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:52,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:58:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:52,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:58:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:52,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:58:52,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358637801] [2020-09-04 12:58:52,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:58:52,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 12:58:52,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597661227] [2020-09-04 12:58:52,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 12:58:52,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:58:52,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 12:58:52,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 12:58:52,621 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2020-09-04 12:58:52,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:58:52,840 INFO L93 Difference]: Finished difference Result 72 states and 94 transitions. [2020-09-04 12:58:52,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 12:58:52,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-09-04 12:58:52,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:58:52,856 INFO L225 Difference]: With dead ends: 72 [2020-09-04 12:58:52,856 INFO L226 Difference]: Without dead ends: 37 [2020-09-04 12:58:52,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 12:58:52,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-04 12:58:52,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-09-04 12:58:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-04 12:58:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-09-04 12:58:52,920 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 27 [2020-09-04 12:58:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:58:52,921 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-09-04 12:58:52,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 12:58:52,921 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-09-04 12:58:52,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-04 12:58:52,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:58:52,924 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] [2020-09-04 12:58:52,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 12:58:52,925 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:58:52,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:58:52,925 INFO L82 PathProgramCache]: Analyzing trace with hash 283227385, now seen corresponding path program 1 times [2020-09-04 12:58:52,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:58:52,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091975552] [2020-09-04 12:58:52,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:58:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:53,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:58:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:53,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:58:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:53,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:58:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:53,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:58:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:53,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:58:53,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091975552] [2020-09-04 12:58:53,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:58:53,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 12:58:53,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834898783] [2020-09-04 12:58:53,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 12:58:53,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:58:53,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 12:58:53,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 12:58:53,292 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 6 states. [2020-09-04 12:58:53,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:58:53,545 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2020-09-04 12:58:53,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 12:58:53,546 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-09-04 12:58:53,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:58:53,550 INFO L225 Difference]: With dead ends: 47 [2020-09-04 12:58:53,550 INFO L226 Difference]: Without dead ends: 41 [2020-09-04 12:58:53,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-04 12:58:53,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-04 12:58:53,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-04 12:58:53,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-04 12:58:53,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-09-04 12:58:53,564 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 28 [2020-09-04 12:58:53,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:58:53,565 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-09-04 12:58:53,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 12:58:53,565 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-09-04 12:58:53,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-04 12:58:53,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:58:53,567 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, 1] [2020-09-04 12:58:53,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 12:58:53,567 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:58:53,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:58:53,568 INFO L82 PathProgramCache]: Analyzing trace with hash 827998108, now seen corresponding path program 1 times [2020-09-04 12:58:53,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:58:53,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764318527] [2020-09-04 12:58:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:58:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:53,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:58:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:53,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:58:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:53,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:58:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:53,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:58:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:58:53,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:58:53,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764318527] [2020-09-04 12:58:53,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:58:53,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 12:58:53,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733756531] [2020-09-04 12:58:53,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 12:58:53,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:58:53,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 12:58:53,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 12:58:53,768 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 6 states. [2020-09-04 12:58:53,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:58:53,976 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2020-09-04 12:58:53,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 12:58:53,977 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-09-04 12:58:53,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:58:53,978 INFO L225 Difference]: With dead ends: 51 [2020-09-04 12:58:53,978 INFO L226 Difference]: Without dead ends: 45 [2020-09-04 12:58:53,979 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 [2020-09-04 12:58:53,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-04 12:58:53,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-09-04 12:58:53,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-04 12:58:53,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-09-04 12:58:53,989 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 31 [2020-09-04 12:58:53,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:58:53,989 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-09-04 12:58:53,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 12:58:53,990 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-09-04 12:58:53,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-04 12:58:53,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:58:53,991 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, 1] [2020-09-04 12:58:53,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 12:58:53,991 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:58:53,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:58:53,992 INFO L82 PathProgramCache]: Analyzing trace with hash 631484603, now seen corresponding path program 1 times [2020-09-04 12:58:53,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:58:53,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682183742] [2020-09-04 12:58:53,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:58:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 12:58:54,017 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 12:58:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 12:58:54,041 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 12:58:54,080 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-04 12:58:54,080 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 12:58:54,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 12:58:54,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 12:58:54 BoogieIcfgContainer [2020-09-04 12:58:54,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 12:58:54,138 INFO L168 Benchmark]: Toolchain (without parser) took 2846.97 ms. Allocated memory was 147.3 MB in the beginning and 234.4 MB in the end (delta: 87.0 MB). Free memory was 103.6 MB in the beginning and 140.0 MB in the end (delta: -36.5 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. [2020-09-04 12:58:54,139 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 12:58:54,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.43 ms. Allocated memory is still 147.3 MB. Free memory was 103.4 MB in the beginning and 91.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-09-04 12:58:54,142 INFO L168 Benchmark]: Boogie Preprocessor took 127.91 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 91.9 MB in the beginning and 181.3 MB in the end (delta: -89.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-04 12:58:54,144 INFO L168 Benchmark]: RCFGBuilder took 397.98 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 162.2 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-09-04 12:58:54,150 INFO L168 Benchmark]: TraceAbstraction took 1970.53 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 161.5 MB in the beginning and 140.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. [2020-09-04 12:58:54,160 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 345.43 ms. Allocated memory is still 147.3 MB. Free memory was 103.4 MB in the beginning and 91.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.91 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 91.9 MB in the beginning and 181.3 MB in the end (delta: -89.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 397.98 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 162.2 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1970.53 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 161.5 MB in the beginning and 140.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 78]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 77, overapproximation of someBinaryArithmeticDOUBLEoperation at line 65. Possible FailurePath: [L64] double x = __VERIFIER_nondet_double(); [L65] double y = 0.0 / 0.0; VAL [x=4293918726] [L72] CALL, EXPR isnan_double(x) VAL [\old(x)=4293918726] [L16] return x != x; VAL [\old(x)=4293918726, \result=0, x=4293918726] [L72] RET, EXPR isnan_double(x) VAL [isnan_double(x)=0, x=4293918726] [L72] COND TRUE !isnan_double(x) [L74] CALL, EXPR fmax_double(x, y) VAL [\old(x)=4293918726, \old(y)=4293918727] [L55] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4293918726] [L27] __uint32_t msw, lsw; VAL [\old(x)=4293918726, x=4293918726] [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)=4293918726, lsw=1, msw=4293918721, x=4293918726] [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4293918726, lsw=1, msw=4293918721, x=4293918726] [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4293918726, lsw=1, msw=4293918721, x=4293918726] [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L50] return 0; VAL [\old(x)=4293918726, \result=0, lsw=1, msw=4293918721, x=4293918726] [L55] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4293918726, \old(y)=4293918727, __fpclassify_double(x)=0, x=4293918726, y=4293918727] [L55] COND TRUE __fpclassify_double(x) == 0 [L56] return y; VAL [\old(x)=4293918726, \old(y)=4293918727, \result=4293918727, x=4293918726, y=4293918727] [L74] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=4293918727, x=4293918726, y=4293918727] [L74] double res = fmax_double(x, y); [L77] COND TRUE res != x VAL [res=4293918727, x=4293918726, y=4293918727] [L78] __VERIFIER_error() VAL [res=4293918727, x=4293918726, y=4293918727] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 42 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: 116 SDtfs, 124 SDslu, 43 SDs, 0 SdLazy, 254 SolverSat, 56 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, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 0.6s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 5500 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...