/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 17:03:36,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 17:03:36,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 17:03:36,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 17:03:36,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 17:03:36,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 17:03:36,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 17:03:36,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 17:03:36,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 17:03:36,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 17:03:36,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 17:03:36,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 17:03:36,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 17:03:36,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 17:03:36,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 17:03:36,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 17:03:36,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 17:03:36,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 17:03:36,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 17:03:36,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 17:03:36,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 17:03:36,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 17:03:36,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 17:03:36,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 17:03:36,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 17:03:36,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 17:03:36,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 17:03:36,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 17:03:36,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 17:03:36,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 17:03:36,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 17:03:36,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 17:03:36,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 17:03:36,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 17:03:36,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 17:03:36,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 17:03:36,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 17:03:36,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 17:03:36,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 17:03:36,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 17:03:36,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 17:03:36,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 17:03:36,701 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 17:03:36,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 17:03:36,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 17:03:36,703 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 17:03:36,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 17:03:36,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 17:03:36,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 17:03:36,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 17:03:36,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 17:03:36,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 17:03:36,704 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 17:03:36,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 17:03:36,705 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 17:03:36,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 17:03:36,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 17:03:36,705 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 17:03:36,705 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 17:03:36,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 17:03:36,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 17:03:36,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 17:03:36,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 17:03:36,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 17:03:36,707 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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: Use separate solver for trace checks -> true [2020-07-17 17:03:36,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 17:03:36,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 17:03:36,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 17:03:36,990 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 17:03:36,990 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 17:03:36,991 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-07-17 17:03:37,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0d05d4a/bae4277fc61e4adab7455f69e4335dbd/FLAGa3d699dc4 [2020-07-17 17:03:37,480 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 17:03:37,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-07-17 17:03:37,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0d05d4a/bae4277fc61e4adab7455f69e4335dbd/FLAGa3d699dc4 [2020-07-17 17:03:37,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0d05d4a/bae4277fc61e4adab7455f69e4335dbd [2020-07-17 17:03:37,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 17:03:37,851 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 17:03:37,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 17:03:37,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 17:03:37,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 17:03:37,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:03:37" (1/1) ... [2020-07-17 17:03:37,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a53c336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:37, skipping insertion in model container [2020-07-17 17:03:37,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:03:37" (1/1) ... [2020-07-17 17:03:37,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 17:03:37,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 17:03:38,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:03:38,061 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 17:03:38,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:03:38,195 INFO L208 MainTranslator]: Completed translation [2020-07-17 17:03:38,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:38 WrapperNode [2020-07-17 17:03:38,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 17:03:38,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 17:03:38,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 17:03:38,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 17:03:38,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:38" (1/1) ... [2020-07-17 17:03:38,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:38" (1/1) ... [2020-07-17 17:03:38,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:38" (1/1) ... [2020-07-17 17:03:38,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:38" (1/1) ... [2020-07-17 17:03:38,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:38" (1/1) ... [2020-07-17 17:03:38,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:38" (1/1) ... [2020-07-17 17:03:38,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:38" (1/1) ... [2020-07-17 17:03:38,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 17:03:38,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 17:03:38,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 17:03:38,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 17:03:38,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:38" (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 [2020-07-17 17:03:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 17:03:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 17:03:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-17 17:03:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-07-17 17:03:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-07-17 17:03:38,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 17:03:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 17:03:38,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-17 17:03:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-17 17:03:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-07-17 17:03:38,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 17:03:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 17:03:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 17:03:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 17:03:38,344 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-07-17 17:03:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 17:03:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 17:03:38,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 17:03:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 17:03:38,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 17:03:38,736 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 17:03:38,737 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-17 17:03:38,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:03:38 BoogieIcfgContainer [2020-07-17 17:03:38,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 17:03:38,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 17:03:38,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 17:03:38,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 17:03:38,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 05:03:37" (1/3) ... [2020-07-17 17:03:38,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d1699f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:03:38, skipping insertion in model container [2020-07-17 17:03:38,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:38" (2/3) ... [2020-07-17 17:03:38,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d1699f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:03:38, skipping insertion in model container [2020-07-17 17:03:38,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:03:38" (3/3) ... [2020-07-17 17:03:38,749 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2020-07-17 17:03:38,759 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 17:03:38,765 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 17:03:38,779 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 17:03:38,798 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 17:03:38,798 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 17:03:38,798 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 17:03:38,799 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 17:03:38,799 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 17:03:38,799 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 17:03:38,799 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 17:03:38,799 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 17:03:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-07-17 17:03:38,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-17 17:03:38,828 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:03:38,829 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:03:38,829 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:03:38,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:03:38,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1770687738, now seen corresponding path program 1 times [2020-07-17 17:03:38,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:03:38,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527256816] [2020-07-17 17:03:38,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:03:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:03:39,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527256816] [2020-07-17 17:03:39,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:03:39,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:03:39,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296427781] [2020-07-17 17:03:39,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:03:39,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:03:39,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:03:39,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:03:39,152 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2020-07-17 17:03:39,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:03:39,393 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2020-07-17 17:03:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:03:39,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-07-17 17:03:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:03:39,406 INFO L225 Difference]: With dead ends: 141 [2020-07-17 17:03:39,407 INFO L226 Difference]: Without dead ends: 74 [2020-07-17 17:03:39,411 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 [2020-07-17 17:03:39,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-17 17:03:39,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-07-17 17:03:39,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-17 17:03:39,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2020-07-17 17:03:39,475 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 40 [2020-07-17 17:03:39,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:03:39,476 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2020-07-17 17:03:39,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:03:39,476 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2020-07-17 17:03:39,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-17 17:03:39,484 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:03:39,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:03:39,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 17:03:39,485 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:03:39,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:03:39,489 INFO L82 PathProgramCache]: Analyzing trace with hash 524719120, now seen corresponding path program 1 times [2020-07-17 17:03:39,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:03:39,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155809262] [2020-07-17 17:03:39,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:03:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:03:39,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155809262] [2020-07-17 17:03:39,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:03:39,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 17:03:39,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081982503] [2020-07-17 17:03:39,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 17:03:39,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:03:39,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 17:03:39,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 17:03:39,760 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 6 states. [2020-07-17 17:03:39,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:03:39,970 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2020-07-17 17:03:39,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 17:03:39,971 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-07-17 17:03:39,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:03:39,975 INFO L225 Difference]: With dead ends: 88 [2020-07-17 17:03:39,975 INFO L226 Difference]: Without dead ends: 79 [2020-07-17 17:03:39,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 17:03:39,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-07-17 17:03:39,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2020-07-17 17:03:39,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-17 17:03:39,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-07-17 17:03:39,997 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 54 [2020-07-17 17:03:39,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:03:39,998 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-07-17 17:03:39,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 17:03:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-07-17 17:03:40,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-17 17:03:40,000 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:03:40,000 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, 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] [2020-07-17 17:03:40,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 17:03:40,001 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:03:40,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:03:40,001 INFO L82 PathProgramCache]: Analyzing trace with hash 2023591653, now seen corresponding path program 1 times [2020-07-17 17:03:40,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:03:40,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079176016] [2020-07-17 17:03:40,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:03:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:03:40,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079176016] [2020-07-17 17:03:40,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:03:40,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 17:03:40,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58563415] [2020-07-17 17:03:40,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 17:03:40,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:03:40,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 17:03:40,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 17:03:40,231 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand 6 states. [2020-07-17 17:03:40,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:03:40,437 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2020-07-17 17:03:40,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 17:03:40,438 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-17 17:03:40,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:03:40,441 INFO L225 Difference]: With dead ends: 92 [2020-07-17 17:03:40,441 INFO L226 Difference]: Without dead ends: 83 [2020-07-17 17:03:40,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 17:03:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-07-17 17:03:40,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2020-07-17 17:03:40,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-17 17:03:40,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-07-17 17:03:40,454 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 57 [2020-07-17 17:03:40,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:03:40,454 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-07-17 17:03:40,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 17:03:40,455 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-07-17 17:03:40,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-17 17:03:40,456 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:03:40,457 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, 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] [2020-07-17 17:03:40,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 17:03:40,457 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:03:40,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:03:40,458 INFO L82 PathProgramCache]: Analyzing trace with hash 425668389, now seen corresponding path program 1 times [2020-07-17 17:03:40,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:03:40,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433269491] [2020-07-17 17:03:40,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:03:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 17:03:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 17:03:40,649 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 17:03:40,649 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 17:03:40,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 17:03:40,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 05:03:40 BoogieIcfgContainer [2020-07-17 17:03:40,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 17:03:40,718 INFO L168 Benchmark]: Toolchain (without parser) took 2867.26 ms. Allocated memory was 138.9 MB in the beginning and 234.9 MB in the end (delta: 95.9 MB). Free memory was 103.4 MB in the beginning and 102.6 MB in the end (delta: 839.3 kB). Peak memory consumption was 96.8 MB. Max. memory is 7.1 GB. [2020-07-17 17:03:40,719 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory is still 122.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 17:03:40,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.74 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 103.4 MB in the beginning and 182.3 MB in the end (delta: -78.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-07-17 17:03:40,722 INFO L168 Benchmark]: Boogie Preprocessor took 60.18 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 180.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-07-17 17:03:40,724 INFO L168 Benchmark]: RCFGBuilder took 483.11 ms. Allocated memory is still 203.4 MB. Free memory was 180.0 MB in the beginning and 157.0 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-07-17 17:03:40,730 INFO L168 Benchmark]: TraceAbstraction took 1971.87 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 157.0 MB in the beginning and 102.6 MB in the end (delta: 54.4 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2020-07-17 17:03:40,734 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory is still 122.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 343.74 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 103.4 MB in the beginning and 182.3 MB in the end (delta: -78.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.18 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 180.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 483.11 ms. Allocated memory is still 203.4 MB. Free memory was 180.0 MB in the beginning and 157.0 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1971.87 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 157.0 MB in the beginning and 102.6 MB in the end (delta: 54.4 MB). Peak memory consumption was 85.9 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(); VAL [__VERIFIER_nondet_double()=4293918725, x=4293918725] [L65] double y = 0.0 / 0.0; VAL [x=4293918725] [L72] CALL, EXPR isnan_double(x) VAL [\old(x)=4293918725] [L16] return x != x; VAL [\old(x)=4293918725, \result=0, x=4293918725] [L72] RET, EXPR isnan_double(x) VAL [isnan_double(x)=0, x=4293918725] [L72] COND TRUE !isnan_double(x) VAL [isnan_double(x)=0, x=4293918725] [L74] CALL, EXPR fmax_double(x, y) VAL [\old(x)=4293918725, \old(y)=4293918724] [L55] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4293918725] [L27] __uint32_t msw, lsw; VAL [\old(x)=4293918725, x=4293918725] [L30] ieee_double_shape_type ew_u; VAL [\old(x)=4293918725, ew_u={2:0}, x=4293918725] [L31] ew_u.value = (x) VAL [\old(x)=4293918725, ew_u={2:0}, x=4293918725] [L32] EXPR ew_u.parts.msw VAL [\old(x)=4293918725, ew_u={2:0}, ew_u.parts.msw=4293918721, x=4293918725] [L32] (msw) = ew_u.parts.msw VAL [\old(x)=4293918725, ew_u={2:0}, ew_u.parts.msw=4293918721, msw=4293918721, x=4293918725] [L33] EXPR ew_u.parts.lsw VAL [\old(x)=4293918725, ew_u={2:0}, ew_u.parts.lsw=3, msw=4293918721, x=4293918725] [L33] (lsw) = ew_u.parts.lsw VAL [\old(x)=4293918725, ew_u={2:0}, ew_u.parts.lsw=3, lsw=3, msw=4293918721, x=4293918725] [L36-L37] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4293918725, lsw=3, msw=4293918721, x=4293918725] [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4293918725, lsw=3, msw=4293918721, x=4293918725] [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4293918725, lsw=3, msw=4293918721, x=4293918725] [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=4293918725, lsw=3, msw=4293918721, x=4293918725] [L50] return 0; VAL [\old(x)=4293918725, \result=0, lsw=3, msw=4293918721, x=4293918725] [L55] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4293918725, \old(y)=4293918724, __fpclassify_double(x)=0, x=4293918725, y=4293918724] [L55] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=4293918725, \old(y)=4293918724, __fpclassify_double(x)=0, x=4293918725, y=4293918724] [L56] return y; VAL [\old(x)=4293918725, \old(y)=4293918724, \result=4293918724, x=4293918725, y=4293918724] [L74] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=4293918724, x=4293918725, y=4293918724] [L74] double res = fmax_double(x, y); VAL [fmax_double(x, y)=4293918724, res=4293918724, x=4293918725, y=4293918724] [L77] COND TRUE res != x VAL [res=4293918724, x=4293918725, y=4293918724] [L78] __VERIFIER_error() VAL [res=4293918724, x=4293918725, y=4293918724] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 81 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: 243 SDtfs, 97 SDslu, 395 SDs, 0 SdLazy, 325 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 13222 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...