/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_1211a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 21:37:07,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 21:37:07,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 21:37:07,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 21:37:07,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 21:37:07,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 21:37:07,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 21:37:07,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 21:37:07,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 21:37:07,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 21:37:07,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 21:37:07,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 21:37:07,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 21:37:07,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 21:37:07,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 21:37:07,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 21:37:07,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 21:37:07,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 21:37:07,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 21:37:07,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 21:37:07,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 21:37:07,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 21:37:07,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 21:37:07,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 21:37:07,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 21:37:07,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 21:37:07,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 21:37:07,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 21:37:07,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 21:37:07,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 21:37:07,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 21:37:07,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 21:37:07,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 21:37:07,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 21:37:07,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 21:37:07,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 21:37:07,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 21:37:07,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 21:37:07,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 21:37:07,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 21:37:07,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 21:37:07,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 21:37:07,550 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 21:37:07,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 21:37:07,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 21:37:07,553 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 21:37:07,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 21:37:07,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 21:37:07,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 21:37:07,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 21:37:07,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 21:37:07,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 21:37:07,556 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 21:37:07,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 21:37:07,556 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 21:37:07,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 21:37:07,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 21:37:07,557 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 21:37:07,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 21:37:07,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 21:37:07,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 21:37:07,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 21:37:07,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 21:37:07,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 21:37:07,559 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 [2020-09-04 21:37:07,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 21:37:08,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 21:37:08,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 21:37:08,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 21:37:08,011 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 21:37:08,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211a.c [2020-09-04 21:37:08,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0368867c/2d89bef0252843fb8a3d2df30614c72e/FLAGace167973 [2020-09-04 21:37:08,642 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 21:37:08,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1211a.c [2020-09-04 21:37:08,651 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0368867c/2d89bef0252843fb8a3d2df30614c72e/FLAGace167973 [2020-09-04 21:37:08,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0368867c/2d89bef0252843fb8a3d2df30614c72e [2020-09-04 21:37:09,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 21:37:09,008 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 21:37:09,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 21:37:09,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 21:37:09,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 21:37:09,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:37:08" (1/1) ... [2020-09-04 21:37:09,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59eb4cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09, skipping insertion in model container [2020-09-04 21:37:09,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:37:08" (1/1) ... [2020-09-04 21:37:09,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 21:37:09,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 21:37:09,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:37:09,326 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 21:37:09,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:37:09,479 INFO L208 MainTranslator]: Completed translation [2020-09-04 21:37:09,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09 WrapperNode [2020-09-04 21:37:09,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 21:37:09,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 21:37:09,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 21:37:09,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 21:37:09,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 21:37:09,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 21:37:09,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 21:37:09,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 21:37:09,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 21:37:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 21:37:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 21:37:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2020-09-04 21:37:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-09-04 21:37:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-09-04 21:37:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 21:37:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 21:37:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-09-04 21:37:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2020-09-04 21:37:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 21:37:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 21:37:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 21:37:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 21:37:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 21:37:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 21:37:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-09-04 21:37:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-09-04 21:37:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 21:37:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-09-04 21:37:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 21:37:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 21:37:10,246 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 21:37:10,246 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-09-04 21:37:10,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:37:10 BoogieIcfgContainer [2020-09-04 21:37:10,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 21:37:10,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 21:37:10,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 21:37:10,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 21:37:10,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 09:37:08" (1/3) ... [2020-09-04 21:37:10,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed28666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:37:10, skipping insertion in model container [2020-09-04 21:37:10,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (2/3) ... [2020-09-04 21:37:10,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed28666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:37:10, skipping insertion in model container [2020-09-04 21:37:10,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:37:10" (3/3) ... [2020-09-04 21:37:10,265 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211a.c [2020-09-04 21:37:10,277 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 21:37:10,287 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 21:37:10,310 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 21:37:10,338 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 21:37:10,338 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 21:37:10,338 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 21:37:10,339 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 21:37:10,339 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 21:37:10,339 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 21:37:10,339 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 21:37:10,339 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 21:37:10,358 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states. [2020-09-04 21:37:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-04 21:37:10,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:10,377 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] [2020-09-04 21:37:10,377 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:10,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:10,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1432903932, now seen corresponding path program 1 times [2020-09-04 21:37:10,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:10,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904694024] [2020-09-04 21:37:10,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:37:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 21:37:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-04 21:37:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 21:37:10,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904694024] [2020-09-04 21:37:10,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:37:10,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 21:37:10,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694042878] [2020-09-04 21:37:10,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 21:37:10,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:37:10,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 21:37:10,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 21:37:10,716 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 4 states. [2020-09-04 21:37:11,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:37:11,147 INFO L93 Difference]: Finished difference Result 315 states and 363 transitions. [2020-09-04 21:37:11,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 21:37:11,149 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-04 21:37:11,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:37:11,164 INFO L225 Difference]: With dead ends: 315 [2020-09-04 21:37:11,164 INFO L226 Difference]: Without dead ends: 153 [2020-09-04 21:37:11,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 21:37:11,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-09-04 21:37:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2020-09-04 21:37:11,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-09-04 21:37:11,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 157 transitions. [2020-09-04 21:37:11,237 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 157 transitions. Word has length 47 [2020-09-04 21:37:11,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:37:11,238 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 157 transitions. [2020-09-04 21:37:11,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 21:37:11,239 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 157 transitions. [2020-09-04 21:37:11,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-04 21:37:11,242 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:11,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:37:11,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 21:37:11,243 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:11,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:11,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1562102553, now seen corresponding path program 1 times [2020-09-04 21:37:11,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:11,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571320676] [2020-09-04 21:37:11,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:11,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:37:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:11,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 21:37:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:11,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-04 21:37:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 21:37:11,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571320676] [2020-09-04 21:37:11,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:37:11,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 21:37:11,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908066945] [2020-09-04 21:37:11,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 21:37:11,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:37:11,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 21:37:11,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 21:37:11,518 INFO L87 Difference]: Start difference. First operand 153 states and 157 transitions. Second operand 5 states. [2020-09-04 21:37:11,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:37:11,824 INFO L93 Difference]: Finished difference Result 161 states and 164 transitions. [2020-09-04 21:37:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 21:37:11,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2020-09-04 21:37:11,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:37:11,828 INFO L225 Difference]: With dead ends: 161 [2020-09-04 21:37:11,828 INFO L226 Difference]: Without dead ends: 153 [2020-09-04 21:37:11,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 21:37:11,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-09-04 21:37:11,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2020-09-04 21:37:11,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-09-04 21:37:11,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 156 transitions. [2020-09-04 21:37:11,847 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 156 transitions. Word has length 72 [2020-09-04 21:37:11,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:37:11,847 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 156 transitions. [2020-09-04 21:37:11,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 21:37:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 156 transitions. [2020-09-04 21:37:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-04 21:37:11,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:11,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:37:11,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 21:37:11,851 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:11,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:11,852 INFO L82 PathProgramCache]: Analyzing trace with hash 934667084, now seen corresponding path program 1 times [2020-09-04 21:37:11,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:11,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951877224] [2020-09-04 21:37:11,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:37:11,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:37:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:37:12,012 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:37:12,084 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 21:37:12,084 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 21:37:12,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 21:37:12,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 09:37:12 BoogieIcfgContainer [2020-09-04 21:37:12,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 21:37:12,171 INFO L168 Benchmark]: Toolchain (without parser) took 3161.21 ms. Allocated memory was 139.5 MB in the beginning and 236.5 MB in the end (delta: 97.0 MB). Free memory was 102.7 MB in the beginning and 103.9 MB in the end (delta: -1.2 MB). Peak memory consumption was 95.8 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:12,172 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 21:37:12,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.70 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.5 MB in the beginning and 182.1 MB in the end (delta: -79.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:12,174 INFO L168 Benchmark]: Boogie Preprocessor took 86.12 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 179.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:12,175 INFO L168 Benchmark]: RCFGBuilder took 687.65 ms. Allocated memory is still 203.9 MB. Free memory was 179.1 MB in the beginning and 140.8 MB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:12,176 INFO L168 Benchmark]: TraceAbstraction took 1910.25 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 140.8 MB in the beginning and 103.9 MB in the end (delta: 36.8 MB). Peak memory consumption was 69.3 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:12,180 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 471.70 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.5 MB in the beginning and 182.1 MB in the end (delta: -79.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.12 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 179.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 687.65 ms. Allocated memory is still 203.9 MB. Free memory was 179.1 MB in the beginning and 140.8 MB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1910.25 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 140.8 MB in the beginning and 103.9 MB in the end (delta: 36.8 MB). Peak memory consumption was 69.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 110]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 109, overapproximation of someBinaryArithmeticFLOAToperation at line 104, overapproximation of bitwiseAnd at line 93. Possible FailurePath: [L12] static const float one_modf = 1.0; VAL [\old(one_modf)=2139095046, one_modf=1] [L104] float x = 1.0f / 0.0f; VAL [one_modf=1] [L105] float iptr = __VERIFIER_nondet_float(); VAL [__VERIFIER_nondet_float()=2139095041, iptr={3:0}, one_modf=1] [L106] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=2139095048, iptr={3:0}, one_modf=1] [L15] __int32_t i0, j0; VAL [\old(x)=2139095048, iptr={3:0}, iptr={3:0}, one_modf=1, x=2139095048] [L16] __uint32_t i; VAL [\old(x)=2139095048, iptr={3:0}, iptr={3:0}, one_modf=1, x=2139095048] [L18] ieee_float_shape_type gf_u; VAL [\old(x)=2139095048, gf_u={5:0}, iptr={3:0}, iptr={3:0}, one_modf=1, x=2139095048] [L19] gf_u.value = (x) VAL [\old(x)=2139095048, gf_u={5:0}, iptr={3:0}, iptr={3:0}, one_modf=1, x=2139095048] [L20] EXPR gf_u.word VAL [\old(x)=2139095048, gf_u={5:0}, gf_u.word=0, iptr={3:0}, iptr={3:0}, one_modf=1, x=2139095048] [L20] (i0) = gf_u.word VAL [(i0) = gf_u.word=2139095051, \old(x)=2139095048, gf_u={5:0}, gf_u.word=0, i0=0, iptr={3:0}, iptr={3:0}, one_modf=1, x=2139095048] [L22] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=2139095048, i0=0, iptr={3:0}, iptr={3:0}, one_modf=1, x=2139095048] [L23] COND TRUE j0 < 23 VAL [\old(x)=2139095048, i0=0, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, x=2139095048] [L24] COND TRUE j0 < 0 VAL [\old(x)=2139095048, i0=0, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, x=2139095048] [L26] ieee_float_shape_type sf_u; VAL [\old(x)=2139095048, i0=0, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, sf_u={6:0}, x=2139095048] [L27] sf_u.word = (i0 & 0x80000000) VAL [\old(x)=2139095048, i0=0, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, sf_u={6:0}, x=2139095048] [L28] EXPR sf_u.value VAL [\old(x)=2139095048, i0=0, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, sf_u={6:0}, sf_u.value=2139095052, x=2139095048] [L28] (*iptr) = sf_u.value VAL [\old(x)=2139095048, i0=0, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, sf_u={6:0}, sf_u.value=2139095052, x=2139095048] [L30] return x; VAL [\old(x)=2139095048, \result=2139095048, i0=0, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, x=2139095048] [L106] RET, EXPR modf_float(x, &iptr) VAL [iptr={3:0}, modf_float(x, &iptr)=2139095048, one_modf=1, x=2139095048] [L106] float res = modf_float(x, &iptr); VAL [iptr={3:0}, modf_float(x, &iptr)=2139095048, one_modf=1, res=2139095048, x=2139095048] [L109] EXPR \read(iptr) VAL [\read(iptr)=2139095052, iptr={3:0}, one_modf=1, res=2139095048, x=2139095048] [L109] CALL, EXPR isinf_float(iptr) VAL [\old(x)=2139095052, one_modf=1] [L87] __int32_t ix; VAL [\old(x)=2139095052, one_modf=1, x=2139095052] [L89] ieee_float_shape_type gf_u; VAL [\old(x)=2139095052, gf_u={2:0}, one_modf=1, x=2139095052] [L90] gf_u.value = (x) VAL [\old(x)=2139095052, gf_u={2:0}, one_modf=1, x=2139095052] [L91] EXPR gf_u.word VAL [\old(x)=2139095052, gf_u={2:0}, gf_u.word=0, one_modf=1, x=2139095052] [L91] (ix) = gf_u.word VAL [(ix) = gf_u.word=2139095047, \old(x)=2139095052, gf_u={2:0}, gf_u.word=0, ix=0, one_modf=1, x=2139095052] [L93] ix &= 0x7fffffff VAL [\old(x)=2139095052, one_modf=1, x=2139095052] [L94] return ((ix) == 0x7f800000L); VAL [\old(x)=2139095052, \result=1, ix=2139095040, one_modf=1, x=2139095052] [L109] RET, EXPR isinf_float(iptr) VAL [\read(iptr)=2139095052, iptr={3:0}, isinf_float(iptr)=1, one_modf=1, res=2139095048, x=2139095048] [L109] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [\read(iptr)=2139095052, iptr={3:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=2139095048, x=2139095048] [L109] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [\read(iptr)=2139095052, iptr={3:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=2139095048, res == 0.0f && __signbit_float(res) == 0=0, x=2139095048] [L109] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [\read(iptr)=2139095052, iptr={3:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=2139095048, res == 0.0f && __signbit_float(res) == 0=0, x=2139095048] [L109] COND TRUE isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [\read(iptr)=2139095052, iptr={3:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=2139095048, res == 0.0f && __signbit_float(res) == 0=0, x=2139095048] [L110] __VERIFIER_error() VAL [iptr={3:0}, one_modf=1, res=2139095048, x=2139095048] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 168 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 316 SDtfs, 42 SDslu, 332 SDs, 0 SdLazy, 424 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 11440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...