/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_1252a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:47:23,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:47:23,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:47:23,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:47:23,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:47:23,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:47:23,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:47:23,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:47:23,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:47:23,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:47:23,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:47:23,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:47:23,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:47:23,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:47:23,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:47:23,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:47:23,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:47:23,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:47:23,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:47:23,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:47:23,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:47:23,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:47:23,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:47:23,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:47:23,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 04:47:23,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:47:23,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:47:23,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:47:23,171 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:47:23,192 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:47:23,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:47:23,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:47:23,197 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:47:23,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:47:23,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:47:23,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:47:23,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:47:23,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:47:23,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:47:23,199 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:47:23,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:47:23,200 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:47:23,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:47:23,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:47:23,201 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:47:23,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:47:23,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:47:23,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:47:23,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:47:23,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:47:23,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:47:23,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:47:23,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:47:23,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:47:23,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:47:23,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:47:23,637 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:47:23,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c [2020-11-07 04:47:23,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab7d0e27e/774178a09fb4410a8415729ac3c28ef1/FLAGdea76edd1 [2020-11-07 04:47:24,319 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:47:24,320 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c [2020-11-07 04:47:24,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab7d0e27e/774178a09fb4410a8415729ac3c28ef1/FLAGdea76edd1 [2020-11-07 04:47:24,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab7d0e27e/774178a09fb4410a8415729ac3c28ef1 [2020-11-07 04:47:24,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:47:24,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:47:24,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:47:24,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:47:24,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:47:24,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:47:24" (1/1) ... [2020-11-07 04:47:24,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7015976b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:24, skipping insertion in model container [2020-11-07 04:47:24,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:47:24" (1/1) ... [2020-11-07 04:47:24,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:47:24,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:47:24,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:47:24,946 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:47:24,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:47:24,997 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:47:24,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:24 WrapperNode [2020-11-07 04:47:24,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:47:25,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:47:25,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:47:25,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:47:25,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:24" (1/1) ... [2020-11-07 04:47:25,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:24" (1/1) ... [2020-11-07 04:47:25,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:24" (1/1) ... [2020-11-07 04:47:25,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:24" (1/1) ... [2020-11-07 04:47:25,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:24" (1/1) ... [2020-11-07 04:47:25,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:24" (1/1) ... [2020-11-07 04:47:25,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:24" (1/1) ... [2020-11-07 04:47:25,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:47:25,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:47:25,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:47:25,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:47:25,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:24" (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 [2020-11-07 04:47:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:47:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:47:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:47:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-11-07 04:47:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2020-11-07 04:47:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-11-07 04:47:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:47:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:47:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:47:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:47:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:47:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-11-07 04:47:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 04:47:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:47:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:47:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2020-11-07 04:47:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-11-07 04:47:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:47:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:47:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:47:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:47:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 04:47:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:47:25,837 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:47:25,837 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-07 04:47:25,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:47:25 BoogieIcfgContainer [2020-11-07 04:47:25,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:47:25,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:47:25,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:47:25,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:47:25,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:47:24" (1/3) ... [2020-11-07 04:47:25,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647772ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:47:25, skipping insertion in model container [2020-11-07 04:47:25,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:24" (2/3) ... [2020-11-07 04:47:25,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647772ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:47:25, skipping insertion in model container [2020-11-07 04:47:25,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:47:25" (3/3) ... [2020-11-07 04:47:25,848 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1252a.c [2020-11-07 04:47:25,864 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:47:25,869 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 04:47:25,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 04:47:25,909 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:47:25,909 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:47:25,909 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:47:25,909 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:47:25,910 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:47:25,910 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:47:25,910 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:47:25,910 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:47:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states. [2020-11-07 04:47:25,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-07 04:47:25,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:47:25,940 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] [2020-11-07 04:47:25,941 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:47:25,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:47:25,947 INFO L82 PathProgramCache]: Analyzing trace with hash 580661350, now seen corresponding path program 1 times [2020-11-07 04:47:25,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:47:25,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036637733] [2020-11-07 04:47:25,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:47:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:26,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:47:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:26,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:47:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:26,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:47:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:26,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:47:26,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036637733] [2020-11-07 04:47:26,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:47:26,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:47:26,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003991439] [2020-11-07 04:47:26,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:47:26,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:47:26,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:47:26,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:47:26,353 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 4 states. [2020-11-07 04:47:26,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:47:26,714 INFO L93 Difference]: Finished difference Result 173 states and 202 transitions. [2020-11-07 04:47:26,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 04:47:26,716 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-11-07 04:47:26,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:47:26,727 INFO L225 Difference]: With dead ends: 173 [2020-11-07 04:47:26,727 INFO L226 Difference]: Without dead ends: 87 [2020-11-07 04:47:26,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 04:47:26,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-07 04:47:26,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-11-07 04:47:26,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-07 04:47:26,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2020-11-07 04:47:26,796 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 40 [2020-11-07 04:47:26,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:47:26,797 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2020-11-07 04:47:26,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:47:26,798 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2020-11-07 04:47:26,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-07 04:47:26,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:47:26,801 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] [2020-11-07 04:47:26,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:47:26,801 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:47:26,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:47:26,802 INFO L82 PathProgramCache]: Analyzing trace with hash 997701105, now seen corresponding path program 1 times [2020-11-07 04:47:26,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:47:26,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297342419] [2020-11-07 04:47:26,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:47:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:26,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:47:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:26,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:47:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:26,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:47:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:27,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:47:27,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297342419] [2020-11-07 04:47:27,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:47:27,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 04:47:27,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636241693] [2020-11-07 04:47:27,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:47:27,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:47:27,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:47:27,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:47:27,041 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 6 states. [2020-11-07 04:47:27,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:47:27,344 INFO L93 Difference]: Finished difference Result 124 states and 134 transitions. [2020-11-07 04:47:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 04:47:27,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-11-07 04:47:27,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:47:27,349 INFO L225 Difference]: With dead ends: 124 [2020-11-07 04:47:27,349 INFO L226 Difference]: Without dead ends: 92 [2020-11-07 04:47:27,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 04:47:27,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-11-07 04:47:27,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-11-07 04:47:27,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-07 04:47:27,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-11-07 04:47:27,369 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 49 [2020-11-07 04:47:27,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:47:27,370 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-11-07 04:47:27,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:47:27,370 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-11-07 04:47:27,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-07 04:47:27,372 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:47:27,372 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] [2020-11-07 04:47:27,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:47:27,373 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:47:27,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:47:27,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1233779619, now seen corresponding path program 1 times [2020-11-07 04:47:27,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:47:27,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893408061] [2020-11-07 04:47:27,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:47:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:27,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:47:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:27,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:47:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:27,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:47:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:47:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:47:27,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893408061] [2020-11-07 04:47:27,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:47:27,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 04:47:27,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576149436] [2020-11-07 04:47:27,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:47:27,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:47:27,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:47:27,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:47:27,575 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 6 states. [2020-11-07 04:47:28,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:47:28,082 INFO L93 Difference]: Finished difference Result 128 states and 139 transitions. [2020-11-07 04:47:28,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 04:47:28,083 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-11-07 04:47:28,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:47:28,085 INFO L225 Difference]: With dead ends: 128 [2020-11-07 04:47:28,085 INFO L226 Difference]: Without dead ends: 96 [2020-11-07 04:47:28,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 04:47:28,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-11-07 04:47:28,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2020-11-07 04:47:28,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-07 04:47:28,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-11-07 04:47:28,101 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 52 [2020-11-07 04:47:28,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:47:28,102 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-11-07 04:47:28,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:47:28,102 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-11-07 04:47:28,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-07 04:47:28,104 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:47:28,104 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] [2020-11-07 04:47:28,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 04:47:28,105 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:47:28,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:47:28,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1845658467, now seen corresponding path program 1 times [2020-11-07 04:47:28,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:47:28,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650020969] [2020-11-07 04:47:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:47:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:47:28,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:47:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:47:28,190 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:47:28,243 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:47:28,244 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:47:28,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 04:47:28,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:47:28 BoogieIcfgContainer [2020-11-07 04:47:28,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:47:28,301 INFO L168 Benchmark]: Toolchain (without parser) took 3629.20 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 126.7 MB in the beginning and 131.6 MB in the end (delta: -4.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 8.0 GB. [2020-11-07 04:47:28,303 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:47:28,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.34 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 115.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:47:28,307 INFO L168 Benchmark]: Boogie Preprocessor took 87.81 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 113.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 04:47:28,308 INFO L168 Benchmark]: RCFGBuilder took 750.91 ms. Allocated memory is still 151.0 MB. Free memory was 113.8 MB in the beginning and 127.6 MB in the end (delta: -13.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 8.0 GB. [2020-11-07 04:47:28,313 INFO L168 Benchmark]: TraceAbstraction took 2456.39 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 127.0 MB in the beginning and 131.6 MB in the end (delta: -4.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. [2020-11-07 04:47:28,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 316.34 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 115.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 87.81 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 113.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 750.91 ms. Allocated memory is still 151.0 MB. Free memory was 113.8 MB in the beginning and 127.6 MB in the end (delta: -13.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2456.39 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 127.0 MB in the beginning and 131.6 MB in the end (delta: -4.5 MB). Peak memory consumption was 30.1 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 80, overapproximation of someUnaryFLOAToperation at line 74. Possible FailurePath: [L74] float x = -0.0f; [L75] float y = 0.0f; VAL [y=0] [L77] CALL, EXPR fmax_float(x, y) VAL [\old(x)=2139095048, \old(y)=0] [L45] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2139095048] [L22] __uint32_t w; VAL [\old(x)=2139095048, x=2139095048] [L25] ieee_float_shape_type gf_u; VAL [\old(x)=2139095048, gf_u={3:0}, x=2139095048] [L26] gf_u.value = (x) VAL [\old(x)=2139095048, gf_u={3:0}, x=2139095048] [L27] EXPR gf_u.word VAL [\old(x)=2139095048, gf_u={3:0}, gf_u.word=2139095041, x=2139095048] [L27] (w) = gf_u.word VAL [\old(x)=2139095048, gf_u={3:0}, gf_u.word=2139095041, w=2139095041, x=2139095048] [L30] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=2139095048, w=2139095041, x=2139095048] [L32-L33] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=2139095048, w=2139095041, x=2139095048] [L35-L36] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=2139095048, w=2139095041, x=2139095048] [L38] COND FALSE !(w == 0x7f800000 || w == 0xff800000) VAL [\old(x)=2139095048, w=2139095041, x=2139095048] [L41] return 0; VAL [\old(x)=2139095048, \result=0, w=2139095041, x=2139095048] [L45] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2139095048, \old(y)=0, __fpclassify_float(x)=0, x=2139095048, y=0] [L45] COND TRUE __fpclassify_float(x) == 0 VAL [\old(x)=2139095048, \old(y)=0, __fpclassify_float(x)=0, x=2139095048, y=0] [L46] return y; VAL [\old(x)=2139095048, \old(y)=0, \result=0, x=2139095048, y=0] [L77] RET, EXPR fmax_float(x, y) VAL [fmax_float(x, y)=0, x=2139095048, y=0] [L77] float res = fmax_float(x, y); VAL [fmax_float(x, y)=0, res=0, x=2139095048, y=0] [L80] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=0, res == 0.0f && __signbit_float(res) == 0=0, x=2139095048, y=0] [L80] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) VAL [res=0, res == 0.0f && __signbit_float(res) == 0=0, x=2139095048, y=0] [L81] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_1252a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 59 SDslu, 511 SDs, 0 SdLazy, 383 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred 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, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 14670 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...