/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/float_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:50:41,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:50:41,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:50:41,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:50:41,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:50:41,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:50:41,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:50:41,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:50:41,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:50:41,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:50:41,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:50:41,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:50:41,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:50:41,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:50:41,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:50:41,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:50:41,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:50:41,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:50:41,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:50:41,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:50:41,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:50:41,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:50:41,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:50:41,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:50:41,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:50:41,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:50:41,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:50:41,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:50:41,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:50:41,248 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:50:41,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:50:41,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:50:41,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:50:41,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:50:41,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:50:41,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:50:41,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:50:41,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:50:41,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:50:41,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:50:41,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:50:41,252 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:50:41,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:50:41,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:50:41,253 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:50:41,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:50:41,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:50:41,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:50:41,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:50:41,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:50:41,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:50:41,254 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 [2020-08-22 21:50:41,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:50:41,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:50:41,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:50:41,531 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:50:41,533 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:50:41,534 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-08-22 21:50:41,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2473b9e15/33733dab7a1548f4956ad7f0b5319892/FLAG340e6d76f [2020-08-22 21:50:42,026 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:50:42,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-08-22 21:50:42,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2473b9e15/33733dab7a1548f4956ad7f0b5319892/FLAG340e6d76f [2020-08-22 21:50:42,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2473b9e15/33733dab7a1548f4956ad7f0b5319892 [2020-08-22 21:50:42,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:50:42,389 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:50:42,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:50:42,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:50:42,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:50:42,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:50:42" (1/1) ... [2020-08-22 21:50:42,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43537e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:42, skipping insertion in model container [2020-08-22 21:50:42,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:50:42" (1/1) ... [2020-08-22 21:50:42,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:50:42,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:50:42,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:50:42,605 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:50:42,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:50:42,648 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:50:42,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:42 WrapperNode [2020-08-22 21:50:42,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:50:42,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:50:42,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:50:42,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:50:42,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:42" (1/1) ... [2020-08-22 21:50:42,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:42" (1/1) ... [2020-08-22 21:50:42,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:42" (1/1) ... [2020-08-22 21:50:42,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:42" (1/1) ... [2020-08-22 21:50:42,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:42" (1/1) ... [2020-08-22 21:50:42,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:42" (1/1) ... [2020-08-22 21:50:42,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:42" (1/1) ... [2020-08-22 21:50:42,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:50:42,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:50:42,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:50:42,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:50:42,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:42" (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 [2020-08-22 21:50:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-08-22 21:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2020-08-22 21:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-08-22 21:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:50:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:50:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-08-22 21:50:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:50:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 21:50:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:50:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:50:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2020-08-22 21:50:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-08-22 21:50:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:50:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:50:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:50:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 21:50:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:50:43,192 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:50:43,193 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 21:50:43,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:50:43 BoogieIcfgContainer [2020-08-22 21:50:43,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:50:43,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:50:43,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:50:43,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:50:43,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:50:42" (1/3) ... [2020-08-22 21:50:43,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ef5307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:50:43, skipping insertion in model container [2020-08-22 21:50:43,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:42" (2/3) ... [2020-08-22 21:50:43,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ef5307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:50:43, skipping insertion in model container [2020-08-22 21:50:43,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:50:43" (3/3) ... [2020-08-22 21:50:43,205 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2020-08-22 21:50:43,214 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:50:43,220 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:50:43,234 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:50:43,255 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:50:43,255 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:50:43,255 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:50:43,255 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:50:43,255 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:50:43,255 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:50:43,256 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:50:43,256 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:50:43,272 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-08-22 21:50:43,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-08-22 21:50:43,284 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:50:43,285 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] [2020-08-22 21:50:43,285 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:50:43,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:50:43,290 INFO L82 PathProgramCache]: Analyzing trace with hash 337584138, now seen corresponding path program 1 times [2020-08-22 21:50:43,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:50:43,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296856069] [2020-08-22 21:50:43,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:50:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:43,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:50:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:43,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 21:50:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:43,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:50:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:43,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 21:50:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:43,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:50:43,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296856069] [2020-08-22 21:50:43,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:50:43,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:50:43,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395933796] [2020-08-22 21:50:43,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:50:43,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:50:43,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:50:43,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:50:43,655 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-08-22 21:50:43,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:50:43,911 INFO L93 Difference]: Finished difference Result 132 states and 153 transitions. [2020-08-22 21:50:43,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 21:50:43,913 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-08-22 21:50:43,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:50:43,929 INFO L225 Difference]: With dead ends: 132 [2020-08-22 21:50:43,929 INFO L226 Difference]: Without dead ends: 66 [2020-08-22 21:50:43,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:50:43,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-08-22 21:50:44,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-08-22 21:50:44,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-22 21:50:44,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2020-08-22 21:50:44,017 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 37 [2020-08-22 21:50:44,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:50:44,018 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2020-08-22 21:50:44,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:50:44,019 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2020-08-22 21:50:44,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 21:50:44,029 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:50:44,029 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] [2020-08-22 21:50:44,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:50:44,030 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:50:44,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:50:44,030 INFO L82 PathProgramCache]: Analyzing trace with hash -356550436, now seen corresponding path program 1 times [2020-08-22 21:50:44,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:50:44,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770580341] [2020-08-22 21:50:44,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:50:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:44,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:50:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:44,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 21:50:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:44,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:50:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:44,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 21:50:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:44,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:50:44,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770580341] [2020-08-22 21:50:44,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:50:44,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:50:44,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965748524] [2020-08-22 21:50:44,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:50:44,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:50:44,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:50:44,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:50:44,249 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand 6 states. [2020-08-22 21:50:44,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:50:44,451 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2020-08-22 21:50:44,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 21:50:44,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-08-22 21:50:44,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:50:44,456 INFO L225 Difference]: With dead ends: 87 [2020-08-22 21:50:44,456 INFO L226 Difference]: Without dead ends: 71 [2020-08-22 21:50:44,457 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 [2020-08-22 21:50:44,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-08-22 21:50:44,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2020-08-22 21:50:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-08-22 21:50:44,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2020-08-22 21:50:44,474 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 46 [2020-08-22 21:50:44,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:50:44,474 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2020-08-22 21:50:44,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:50:44,475 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2020-08-22 21:50:44,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-08-22 21:50:44,477 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:50:44,477 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] [2020-08-22 21:50:44,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:50:44,477 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:50:44,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:50:44,478 INFO L82 PathProgramCache]: Analyzing trace with hash -192516793, now seen corresponding path program 1 times [2020-08-22 21:50:44,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:50:44,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017772658] [2020-08-22 21:50:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:50:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:44,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:50:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:44,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 21:50:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:44,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:50:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:44,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 21:50:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:44,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:50:44,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017772658] [2020-08-22 21:50:44,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:50:44,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:50:44,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156032740] [2020-08-22 21:50:44,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:50:44,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:50:44,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:50:44,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:50:44,659 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand 6 states. [2020-08-22 21:50:44,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:50:44,831 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2020-08-22 21:50:44,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 21:50:44,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-08-22 21:50:44,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:50:44,834 INFO L225 Difference]: With dead ends: 91 [2020-08-22 21:50:44,834 INFO L226 Difference]: Without dead ends: 75 [2020-08-22 21:50:44,835 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 [2020-08-22 21:50:44,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-22 21:50:44,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 70. [2020-08-22 21:50:44,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-08-22 21:50:44,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2020-08-22 21:50:44,847 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 49 [2020-08-22 21:50:44,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:50:44,847 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2020-08-22 21:50:44,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:50:44,848 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2020-08-22 21:50:44,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-08-22 21:50:44,849 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:50:44,849 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] [2020-08-22 21:50:44,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:50:44,850 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:50:44,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:50:44,850 INFO L82 PathProgramCache]: Analyzing trace with hash -587463417, now seen corresponding path program 1 times [2020-08-22 21:50:44,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:50:44,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400217335] [2020-08-22 21:50:44,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:50:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:50:44,870 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:50:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:50:44,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:50:44,915 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:50:44,916 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:50:44,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:50:44,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:50:44 BoogieIcfgContainer [2020-08-22 21:50:44,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:50:44,955 INFO L168 Benchmark]: Toolchain (without parser) took 2566.17 ms. Allocated memory was 138.9 MB in the beginning and 235.9 MB in the end (delta: 97.0 MB). Free memory was 102.8 MB in the beginning and 133.3 MB in the end (delta: -30.4 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:44,956 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 21:50:44,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.22 ms. Allocated memory is still 138.9 MB. Free memory was 102.4 MB in the beginning and 91.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:44,958 INFO L168 Benchmark]: Boogie Preprocessor took 118.46 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 180.2 MB in the end (delta: -88.4 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:44,958 INFO L168 Benchmark]: RCFGBuilder took 429.57 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 158.9 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:44,959 INFO L168 Benchmark]: TraceAbstraction took 1753.17 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 158.9 MB in the beginning and 133.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:44,963 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 258.22 ms. Allocated memory is still 138.9 MB. Free memory was 102.4 MB in the beginning and 91.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.46 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 180.2 MB in the end (delta: -88.4 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 429.57 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 158.9 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1753.17 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 158.9 MB in the beginning and 133.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 55. Possible FailurePath: [L54] float x = 0.0f / 0.0f; [L55] float y = 0.0f / 0.0f; [L56] CALL, EXPR fmin_float(x, y) VAL [\old(x)=2139095045, \old(y)=2139095046] [L35] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2139095045] [L12] __uint32_t w; VAL [\old(x)=2139095045, x=2139095045] [L15] ieee_float_shape_type gf_u; VAL [\old(x)=2139095045, gf_u={2:0}, x=2139095045] [L16] gf_u.value = (x) VAL [\old(x)=2139095045, gf_u={2:0}, x=2139095045] [L17] EXPR gf_u.word VAL [\old(x)=2139095045, gf_u={2:0}, gf_u.word=2139095041, x=2139095045] [L17] (w) = gf_u.word VAL [(w) = gf_u.word=2139095044, \old(x)=2139095045, gf_u={2:0}, gf_u.word=2139095041, w=2139095041, x=2139095045] [L20] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L22-L23] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L25-L26] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L28] COND FALSE !(w == 0x7f800000 || w == 0xff800000) VAL [\old(x)=2139095045, w=2139095041, x=2139095045] [L31] return 0; VAL [\old(x)=2139095045, \result=0, w=2139095041, x=2139095045] [L35] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2139095045, \old(y)=2139095046, __fpclassify_float(x)=0, x=2139095045, y=2139095046] [L35] COND TRUE __fpclassify_float(x) == 0 VAL [\old(x)=2139095045, \old(y)=2139095046, __fpclassify_float(x)=0, x=2139095045, y=2139095046] [L36] return y; VAL [\old(x)=2139095045, \old(y)=2139095046, \result=2139095046, x=2139095045, y=2139095046] [L56] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=2139095046, x=2139095045, y=2139095046] [L56] float res = fmin_float(x, y); VAL [fmin_float(x, y)=2139095046, res=2139095046, x=2139095045, y=2139095046] [L58] CALL, EXPR isnan_float(res) VAL [\old(x)=2139095046] [L44] return x != x; VAL [\old(x)=2139095046, \result=0, x=2139095046] [L58] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=2139095046, x=2139095045, y=2139095046] [L58] COND TRUE !isnan_float(res) VAL [isnan_float(res)=0, res=2139095046, x=2139095045, y=2139095046] [L59] __VERIFIER_error() VAL [res=2139095046, x=2139095045, y=2139095046] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 221 SDtfs, 59 SDslu, 387 SDs, 0 SdLazy, 288 SolverSat, 29 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=73occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 10626 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...