/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_1250.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:34:42,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:34:42,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:34:42,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 00:34:42,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 00:34:42,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 00:34:42,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 00:34:42,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 00:34:42,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 00:34:42,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 00:34:42,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 00:34:42,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 00:34:42,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:34:42,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:34:42,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:34:42,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:34:42,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:34:42,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:34:42,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:34:42,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:34:42,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:34:42,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:34:42,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:34:42,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:34:42,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:34:42,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 00:34:42,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 00:34:42,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 00:34:42,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:34:42,833 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:34:42,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:34:42,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:34:42,838 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:34:42,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:34:42,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:34:42,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:34:42,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:34:42,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:34:42,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:34:42,840 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:34:42,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:34:42,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:34:42,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:34:42,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:34:42,841 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:34:42,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:34:42,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:34:42,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:34:42,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:34:42,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:34:42,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:34:42,842 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:34:43,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:34:43,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:34:43,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:34:43,285 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:34:43,286 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:34:43,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1250.c [2020-10-24 00:34:43,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/185d5d5c2/8bb4581852084444b2fbd262f016a1c6/FLAG18d21b541 [2020-10-24 00:34:44,015 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:34:44,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1250.c [2020-10-24 00:34:44,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/185d5d5c2/8bb4581852084444b2fbd262f016a1c6/FLAG18d21b541 [2020-10-24 00:34:44,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/185d5d5c2/8bb4581852084444b2fbd262f016a1c6 [2020-10-24 00:34:44,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:34:44,358 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:34:44,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:34:44,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:34:44,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:34:44,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e97308f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44, skipping insertion in model container [2020-10-24 00:34:44,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:34:44,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:34:44,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:34:44,579 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:34:44,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:34:44,628 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:34:44,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44 WrapperNode [2020-10-24 00:34:44,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:34:44,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:34:44,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:34:44,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:34:44,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:34:44,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:34:44,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:34:44,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:34:44,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:34:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:34:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:34:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:34:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-10-24 00:34:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2020-10-24 00:34:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-24 00:34:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:34:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:34:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:34:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:34:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:34:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-10-24 00:34:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 00:34:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:34:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:34:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2020-10-24 00:34:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-24 00:34:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:34:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:34:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:34:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:34:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 00:34:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:34:45,496 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:34:45,497 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-24 00:34:45,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:34:45 BoogieIcfgContainer [2020-10-24 00:34:45,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:34:45,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:34:45,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:34:45,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:34:45,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:34:44" (1/3) ... [2020-10-24 00:34:45,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb904c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:34:45, skipping insertion in model container [2020-10-24 00:34:45,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (2/3) ... [2020-10-24 00:34:45,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb904c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:34:45, skipping insertion in model container [2020-10-24 00:34:45,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:34:45" (3/3) ... [2020-10-24 00:34:45,510 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1250.c [2020-10-24 00:34:45,522 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:34:45,527 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:34:45,540 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:34:45,571 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:34:45,571 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:34:45,572 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:34:45,572 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:34:45,572 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:34:45,572 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:34:45,572 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:34:45,572 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:34:45,588 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-10-24 00:34:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-24 00:34:45,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:45,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:34:45,601 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:45,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:45,607 INFO L82 PathProgramCache]: Analyzing trace with hash 522065377, now seen corresponding path program 1 times [2020-10-24 00:34:45,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:45,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966970048] [2020-10-24 00:34:45,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:45,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:45,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:34:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:45,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:34:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:45,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-24 00:34:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:45,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966970048] [2020-10-24 00:34:45,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:45,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 00:34:45,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822513478] [2020-10-24 00:34:45,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 00:34:45,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:46,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 00:34:46,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 00:34:46,008 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2020-10-24 00:34:46,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:46,322 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2020-10-24 00:34:46,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 00:34:46,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-10-24 00:34:46,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:46,334 INFO L225 Difference]: With dead ends: 141 [2020-10-24 00:34:46,335 INFO L226 Difference]: Without dead ends: 72 [2020-10-24 00:34:46,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 00:34:46,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-24 00:34:46,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-24 00:34:46,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-24 00:34:46,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2020-10-24 00:34:46,397 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 43 [2020-10-24 00:34:46,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:46,398 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2020-10-24 00:34:46,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 00:34:46,398 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2020-10-24 00:34:46,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-24 00:34:46,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:46,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:34:46,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:34:46,402 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:46,403 INFO L82 PathProgramCache]: Analyzing trace with hash 53290032, now seen corresponding path program 1 times [2020-10-24 00:34:46,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:46,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958707714] [2020-10-24 00:34:46,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:46,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:46,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:34:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:46,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:34:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:46,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-24 00:34:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:46,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:46,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958707714] [2020-10-24 00:34:46,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:46,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:34:46,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352065097] [2020-10-24 00:34:46,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:34:46,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:46,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:34:46,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:34:46,637 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand 6 states. [2020-10-24 00:34:46,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:46,891 INFO L93 Difference]: Finished difference Result 94 states and 102 transitions. [2020-10-24 00:34:46,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:34:46,892 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-10-24 00:34:46,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:46,895 INFO L225 Difference]: With dead ends: 94 [2020-10-24 00:34:46,895 INFO L226 Difference]: Without dead ends: 77 [2020-10-24 00:34:46,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-24 00:34:46,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-24 00:34:46,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-10-24 00:34:46,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-24 00:34:46,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-10-24 00:34:46,914 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 52 [2020-10-24 00:34:46,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:46,914 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-10-24 00:34:46,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:34:46,914 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-10-24 00:34:46,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-24 00:34:46,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:46,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:34:46,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:34:46,917 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:46,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:46,918 INFO L82 PathProgramCache]: Analyzing trace with hash -827817724, now seen corresponding path program 1 times [2020-10-24 00:34:46,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:46,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284347578] [2020-10-24 00:34:46,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:47,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:47,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:34:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:47,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:34:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:47,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-24 00:34:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:47,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284347578] [2020-10-24 00:34:47,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:47,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:34:47,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642879071] [2020-10-24 00:34:47,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:34:47,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:47,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:34:47,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:34:47,124 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 6 states. [2020-10-24 00:34:47,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:47,530 INFO L93 Difference]: Finished difference Result 98 states and 107 transitions. [2020-10-24 00:34:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:34:47,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-10-24 00:34:47,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:47,533 INFO L225 Difference]: With dead ends: 98 [2020-10-24 00:34:47,533 INFO L226 Difference]: Without dead ends: 81 [2020-10-24 00:34:47,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-24 00:34:47,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-24 00:34:47,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2020-10-24 00:34:47,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-24 00:34:47,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-10-24 00:34:47,547 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 55 [2020-10-24 00:34:47,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:47,548 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-10-24 00:34:47,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:34:47,548 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-10-24 00:34:47,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-24 00:34:47,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:47,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:34:47,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 00:34:47,551 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:47,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:47,551 INFO L82 PathProgramCache]: Analyzing trace with hash -186261180, now seen corresponding path program 1 times [2020-10-24 00:34:47,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:47,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331171324] [2020-10-24 00:34:47,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:34:47,580 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:34:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:34:47,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:34:47,656 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:34:47,656 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:34:47,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 00:34:47,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:34:47 BoogieIcfgContainer [2020-10-24 00:34:47,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:34:47,743 INFO L168 Benchmark]: Toolchain (without parser) took 3387.37 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 126.7 MB in the beginning and 111.3 MB in the end (delta: 15.4 MB). Peak memory consumption was 47.3 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:47,743 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:34:47,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.63 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. [2020-10-24 00:34:47,748 INFO L168 Benchmark]: Boogie Preprocessor took 52.32 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:47,750 INFO L168 Benchmark]: RCFGBuilder took 815.93 ms. Allocated memory is still 151.0 MB. Free memory was 113.8 MB in the beginning and 129.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:47,752 INFO L168 Benchmark]: TraceAbstraction took 2236.34 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 129.0 MB in the beginning and 111.3 MB in the end (delta: 17.8 MB). Peak memory consumption was 48.7 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:47,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 269.63 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 52.32 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 815.93 ms. Allocated memory is still 151.0 MB. Free memory was 113.8 MB in the beginning and 129.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2236.34 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 129.0 MB in the beginning and 111.3 MB in the end (delta: 17.8 MB). Peak memory consumption was 48.7 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 56, overapproximation of someBinaryArithmeticFLOAToperation at line 63. Possible FailurePath: [L62] float x = 0.0f / 0.0f; [L63] float y = 0.0f / 0.0f; [L64] CALL, EXPR fmax_float(x, y) VAL [\old(x)=4286578696, \old(y)=4286578699] [L45] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=4286578696] [L22] __uint32_t w; VAL [\old(x)=4286578696, x=4286578696] [L25] ieee_float_shape_type gf_u; VAL [\old(x)=4286578696, gf_u={3:0}, x=4286578696] [L26] gf_u.value = (x) VAL [\old(x)=4286578696, gf_u={3:0}, x=4286578696] [L27] EXPR gf_u.word VAL [\old(x)=4286578696, gf_u={3:0}, gf_u.word=4286578689, x=4286578696] [L27] (w) = gf_u.word VAL [(w) = gf_u.word=4286578694, \old(x)=4286578696, gf_u={3:0}, gf_u.word=4286578689, w=4286578689, x=4286578696] [L30] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=4286578696, w=4286578689, x=4286578696] [L32-L33] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=4286578696, w=4286578689, x=4286578696] [L35-L36] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=4286578696, w=4286578689, x=4286578696] [L38] COND FALSE !(w == 0x7f800000 || w == 0xff800000) VAL [\old(x)=4286578696, w=4286578689, x=4286578696] [L41] return 0; VAL [\old(x)=4286578696, \result=0, w=4286578689, x=4286578696] [L45] RET, EXPR __fpclassify_float(x) VAL [\old(x)=4286578696, \old(y)=4286578699, __fpclassify_float(x)=0, x=4286578696, y=4286578699] [L45] COND TRUE __fpclassify_float(x) == 0 VAL [\old(x)=4286578696, \old(y)=4286578699, __fpclassify_float(x)=0, x=4286578696, y=4286578699] [L46] return y; VAL [\old(x)=4286578696, \old(y)=4286578699, \result=4286578699, x=4286578696, y=4286578699] [L64] RET, EXPR fmax_float(x, y) VAL [fmax_float(x, y)=4286578699, x=4286578696, y=4286578699] [L64] float res = fmax_float(x, y); VAL [fmax_float(x, y)=4286578699, res=4286578699, x=4286578696, y=4286578699] [L66] CALL, EXPR isnan_float(res) VAL [\old(x)=4286578699] [L56] return x != x; VAL [\old(x)=4286578699, \result=0, x=4286578699] [L66] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=4286578699, x=4286578696, y=4286578699] [L66] COND TRUE !isnan_float(res) VAL [isnan_float(res)=0, res=4286578699, x=4286578696, y=4286578699] [L67] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_1250.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 65 SDslu, 404 SDs, 0 SdLazy, 319 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 16059 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...