/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/float_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:34:35,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:34:35,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:34:35,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 00:34:35,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 00:34:35,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 00:34:35,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 00:34:35,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 00:34:35,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 00:34:35,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 00:34:35,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 00:34:35,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 00:34:35,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:34:35,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:34:35,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:34:35,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:34:35,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:34:35,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:34:35,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:34:35,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:34:35,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:34:35,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:34:35,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:34:35,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:34:35,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:34:35,779 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:34:35,798 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:34:35,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:34:35,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:34:35,803 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:34:35,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:34:35,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:34:35,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:34:35,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:34:35,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:34:35,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:34:35,805 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:34:35,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:34:35,806 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:34:35,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:34:35,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:34:35,806 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:34:35,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:34:35,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:34:35,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:34:35,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:34:35,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:34:35,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:34:35,808 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:34:36,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:34:36,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:34:36,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:34:36,215 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:34:36,216 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:34:36,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-10-24 00:34:36,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a63647b/cb83342adc2d4e1ca40b64c2b2bb032c/FLAG449b2ab44 [2020-10-24 00:34:36,918 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:34:36,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-10-24 00:34:36,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a63647b/cb83342adc2d4e1ca40b64c2b2bb032c/FLAG449b2ab44 [2020-10-24 00:34:37,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a63647b/cb83342adc2d4e1ca40b64c2b2bb032c [2020-10-24 00:34:37,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:34:37,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:34:37,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:34:37,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:34:37,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:34:37,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:34:37" (1/1) ... [2020-10-24 00:34:37,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431ca9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:37, skipping insertion in model container [2020-10-24 00:34:37,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:34:37" (1/1) ... [2020-10-24 00:34:37,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:34:37,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:34:37,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:34:37,490 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:34:37,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:34:37,528 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:34:37,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:37 WrapperNode [2020-10-24 00:34:37,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:34:37,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:34:37,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:34:37,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:34:37,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:37" (1/1) ... [2020-10-24 00:34:37,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:37" (1/1) ... [2020-10-24 00:34:37,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:37" (1/1) ... [2020-10-24 00:34:37,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:37" (1/1) ... [2020-10-24 00:34:37,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:37" (1/1) ... [2020-10-24 00:34:37,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:37" (1/1) ... [2020-10-24 00:34:37,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:37" (1/1) ... [2020-10-24 00:34:37,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:34:37,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:34:37,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:34:37,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:34:37,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:37" (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 [2020-10-24 00:34:37,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:34:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:34:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:34:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-10-24 00:34:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2020-10-24 00:34:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-24 00:34:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:34:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:34:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:34:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:34:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:34:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-10-24 00:34:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 00:34:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:34:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:34:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2020-10-24 00:34:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-24 00:34:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:34:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:34:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:34:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:34:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 00:34:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:34:38,059 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:34:38,059 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-24 00:34:38,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:34:38 BoogieIcfgContainer [2020-10-24 00:34:38,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:34:38,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:34:38,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:34:38,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:34:38,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:34:37" (1/3) ... [2020-10-24 00:34:38,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5195108f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:34:38, skipping insertion in model container [2020-10-24 00:34:38,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:37" (2/3) ... [2020-10-24 00:34:38,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5195108f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:34:38, skipping insertion in model container [2020-10-24 00:34:38,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:34:38" (3/3) ... [2020-10-24 00:34:38,070 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2020-10-24 00:34:38,082 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:34:38,087 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:34:38,100 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:34:38,124 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:34:38,124 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:34:38,124 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:34:38,124 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:34:38,125 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:34:38,125 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:34:38,125 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:34:38,125 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:34:38,142 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-10-24 00:34:38,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-24 00:34:38,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:38,154 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] [2020-10-24 00:34:38,155 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:38,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:38,161 INFO L82 PathProgramCache]: Analyzing trace with hash -766081453, now seen corresponding path program 1 times [2020-10-24 00:34:38,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:38,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378420728] [2020-10-24 00:34:38,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:38,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:38,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:34:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:38,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:34:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:38,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-24 00:34:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:38,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:38,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378420728] [2020-10-24 00:34:38,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:38,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 00:34:38,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392460331] [2020-10-24 00:34:38,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 00:34:38,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:38,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 00:34:38,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 00:34:38,530 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2020-10-24 00:34:38,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:38,950 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2020-10-24 00:34:38,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 00:34:38,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-10-24 00:34:38,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:38,963 INFO L225 Difference]: With dead ends: 141 [2020-10-24 00:34:38,963 INFO L226 Difference]: Without dead ends: 72 [2020-10-24 00:34:38,967 INFO L677 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 [2020-10-24 00:34:38,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-24 00:34:39,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-24 00:34:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-24 00:34:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2020-10-24 00:34:39,037 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 43 [2020-10-24 00:34:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:39,038 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2020-10-24 00:34:39,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 00:34:39,038 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2020-10-24 00:34:39,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-24 00:34:39,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:39,042 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] [2020-10-24 00:34:39,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:34:39,042 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:39,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:39,043 INFO L82 PathProgramCache]: Analyzing trace with hash -628726623, now seen corresponding path program 1 times [2020-10-24 00:34:39,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:39,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811309516] [2020-10-24 00:34:39,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:39,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:39,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:34:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:39,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:34:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:39,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-24 00:34:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:39,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:39,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811309516] [2020-10-24 00:34:39,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:39,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:34:39,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799738076] [2020-10-24 00:34:39,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:34:39,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:39,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:34:39,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:34:39,312 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand 6 states. [2020-10-24 00:34:39,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:39,575 INFO L93 Difference]: Finished difference Result 94 states and 102 transitions. [2020-10-24 00:34:39,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:34:39,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-10-24 00:34:39,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:39,580 INFO L225 Difference]: With dead ends: 94 [2020-10-24 00:34:39,580 INFO L226 Difference]: Without dead ends: 77 [2020-10-24 00:34:39,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-24 00:34:39,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-24 00:34:39,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-10-24 00:34:39,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-24 00:34:39,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-10-24 00:34:39,620 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 52 [2020-10-24 00:34:39,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:39,621 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-10-24 00:34:39,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:34:39,621 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-10-24 00:34:39,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-24 00:34:39,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:39,625 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] [2020-10-24 00:34:39,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:34:39,626 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:39,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:39,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1358329674, now seen corresponding path program 1 times [2020-10-24 00:34:39,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:39,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950197943] [2020-10-24 00:34:39,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:39,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:39,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:34:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:39,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:34:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:39,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-24 00:34:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:39,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950197943] [2020-10-24 00:34:39,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:39,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:34:39,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238623944] [2020-10-24 00:34:39,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:34:39,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:39,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:34:39,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:34:39,800 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 6 states. [2020-10-24 00:34:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:40,011 INFO L93 Difference]: Finished difference Result 98 states and 107 transitions. [2020-10-24 00:34:40,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:34:40,012 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-10-24 00:34:40,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:40,014 INFO L225 Difference]: With dead ends: 98 [2020-10-24 00:34:40,014 INFO L226 Difference]: Without dead ends: 81 [2020-10-24 00:34:40,015 INFO L677 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 [2020-10-24 00:34:40,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-24 00:34:40,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2020-10-24 00:34:40,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-24 00:34:40,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-10-24 00:34:40,028 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 55 [2020-10-24 00:34:40,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:40,029 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-10-24 00:34:40,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:34:40,029 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-10-24 00:34:40,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-24 00:34:40,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:40,031 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] [2020-10-24 00:34:40,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 00:34:40,031 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:40,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:40,032 INFO L82 PathProgramCache]: Analyzing trace with hash -716773130, now seen corresponding path program 1 times [2020-10-24 00:34:40,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:40,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913136284] [2020-10-24 00:34:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:34:40,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:34:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:34:40,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:34:40,112 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:34:40,112 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:34:40,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 00:34:40,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:34:40 BoogieIcfgContainer [2020-10-24 00:34:40,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:34:40,176 INFO L168 Benchmark]: Toolchain (without parser) took 2907.78 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 134.2 MB in the beginning and 129.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 37.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:40,176 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 159.4 MB. Free memory is still 133.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:34:40,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.80 ms. Allocated memory is still 159.4 MB. Free memory was 133.6 MB in the beginning and 123.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:40,179 INFO L168 Benchmark]: Boogie Preprocessor took 38.84 ms. Allocated memory is still 159.4 MB. Free memory was 123.6 MB in the beginning and 122.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:40,180 INFO L168 Benchmark]: RCFGBuilder took 491.86 ms. Allocated memory is still 159.4 MB. Free memory was 121.9 MB in the beginning and 137.7 MB in the end (delta: -15.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:40,183 INFO L168 Benchmark]: TraceAbstraction took 2109.92 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 137.2 MB in the beginning and 129.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 40.3 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:40,188 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 159.4 MB. Free memory is still 133.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 253.80 ms. Allocated memory is still 159.4 MB. Free memory was 133.6 MB in the beginning and 123.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.84 ms. Allocated memory is still 159.4 MB. Free memory was 123.6 MB in the beginning and 122.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 491.86 ms. Allocated memory is still 159.4 MB. Free memory was 121.9 MB in the beginning and 137.7 MB in the end (delta: -15.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2109.92 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 137.2 MB in the beginning and 129.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 40.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 57. Possible FailurePath: [L56] float x = 0.0f / 0.0f; [L57] float y = 0.0f / 0.0f; [L58] CALL, EXPR fmin_float(x, y) VAL [\old(x)=4286578697, \old(y)=4286578701] [L37] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=4286578697] [L14] __uint32_t w; VAL [\old(x)=4286578697, x=4286578697] [L17] ieee_float_shape_type gf_u; VAL [\old(x)=4286578697, gf_u={3:0}, x=4286578697] [L18] gf_u.value = (x) VAL [\old(x)=4286578697, gf_u={3:0}, x=4286578697] [L19] EXPR gf_u.word VAL [\old(x)=4286578697, gf_u={3:0}, gf_u.word=4286578689, x=4286578697] [L19] (w) = gf_u.word VAL [\old(x)=4286578697, gf_u={3:0}, gf_u.word=4286578689, w=4286578689, x=4286578697] [L22] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=4286578697, w=4286578689, x=4286578697] [L24-L25] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=4286578697, w=4286578689, x=4286578697] [L27-L28] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=4286578697, w=4286578689, x=4286578697] [L30] COND FALSE !(w == 0x7f800000 || w == 0xff800000) VAL [\old(x)=4286578697, w=4286578689, x=4286578697] [L33] return 0; VAL [\old(x)=4286578697, \result=0, w=4286578689, x=4286578697] [L37] RET, EXPR __fpclassify_float(x) VAL [\old(x)=4286578697, \old(y)=4286578701, __fpclassify_float(x)=0, x=4286578697, y=4286578701] [L37] COND TRUE __fpclassify_float(x) == 0 VAL [\old(x)=4286578697, \old(y)=4286578701, __fpclassify_float(x)=0, x=4286578697, y=4286578701] [L38] return y; VAL [\old(x)=4286578697, \old(y)=4286578701, \result=4286578701, x=4286578697, y=4286578701] [L58] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=4286578701, x=4286578697, y=4286578701] [L58] float res = fmin_float(x, y); VAL [fmin_float(x, y)=4286578701, res=4286578701, x=4286578697, y=4286578701] [L60] CALL, EXPR isnan_float(res) VAL [\old(x)=4286578701] [L46] return x != x; VAL [\old(x)=4286578701, \result=0, x=4286578701] [L60] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=4286578701, x=4286578697, y=4286578701] [L60] COND TRUE !isnan_float(res) VAL [isnan_float(res)=0, res=4286578701, x=4286578697, y=4286578701] [L61] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_1230.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 65 SDslu, 404 SDs, 0 SdLazy, 319 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s 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, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 16059 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...