/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-newlib/double_req_bl_0250a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 03:44:06,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 03:44:06,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 03:44:06,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 03:44:06,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 03:44:06,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 03:44:06,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 03:44:06,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 03:44:06,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 03:44:06,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 03:44:06,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 03:44:06,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 03:44:06,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 03:44:06,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 03:44:06,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 03:44:06,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 03:44:06,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 03:44:06,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 03:44:06,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 03:44:06,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 03:44:06,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 03:44:06,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 03:44:06,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 03:44:06,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 03:44:06,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 03:44:06,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 03:44:06,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 03:44:06,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 03:44:06,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 03:44:06,896 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 03:44:06,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 03:44:06,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 03:44:06,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 03:44:06,899 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 03:44:06,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 03:44:06,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 03:44:06,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 03:44:06,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 03:44:06,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 03:44:06,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 03:44:06,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 03:44:06,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 03:44:06,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 03:44:06,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 03:44:06,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 03:44:06,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 03:44:06,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 03:44:06,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 03:44:06,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 03:44:06,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 03:44:06,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 03:44:06,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 03:44:06,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 03:44:06,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 03:44:06,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 03:44:07,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 03:44:07,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 03:44:07,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 03:44:07,311 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 03:44:07,312 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 03:44:07,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0250a.c [2020-12-22 03:44:07,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e360c1a8e/147f1d4c142e4a7d8336caa277aadecf/FLAG6f923a401 [2020-12-22 03:44:08,021 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 03:44:08,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0250a.c [2020-12-22 03:44:08,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e360c1a8e/147f1d4c142e4a7d8336caa277aadecf/FLAG6f923a401 [2020-12-22 03:44:08,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e360c1a8e/147f1d4c142e4a7d8336caa277aadecf [2020-12-22 03:44:08,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 03:44:08,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 03:44:08,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 03:44:08,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 03:44:08,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 03:44:08,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:44:08" (1/1) ... [2020-12-22 03:44:08,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5757e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08, skipping insertion in model container [2020-12-22 03:44:08,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:44:08" (1/1) ... [2020-12-22 03:44:08,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 03:44:08,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 03:44:08,717 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0250a.c[5945,5958] [2020-12-22 03:44:08,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:44:08,748 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 03:44:08,870 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0250a.c[5945,5958] [2020-12-22 03:44:08,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:44:08,900 INFO L208 MainTranslator]: Completed translation [2020-12-22 03:44:08,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08 WrapperNode [2020-12-22 03:44:08,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 03:44:08,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 03:44:08,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 03:44:08,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 03:44:08,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08" (1/1) ... [2020-12-22 03:44:08,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08" (1/1) ... [2020-12-22 03:44:08,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 03:44:08,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 03:44:08,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 03:44:08,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 03:44:09,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08" (1/1) ... [2020-12-22 03:44:09,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08" (1/1) ... [2020-12-22 03:44:09,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08" (1/1) ... [2020-12-22 03:44:09,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08" (1/1) ... [2020-12-22 03:44:09,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08" (1/1) ... [2020-12-22 03:44:09,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08" (1/1) ... [2020-12-22 03:44:09,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08" (1/1) ... [2020-12-22 03:44:09,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 03:44:09,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 03:44:09,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 03:44:09,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 03:44:09,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08" (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 [2020-12-22 03:44:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 03:44:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 03:44:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-22 03:44:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 03:44:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-22 03:44:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 03:44:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 03:44:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 03:44:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 03:44:09,851 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 03:44:09,852 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2020-12-22 03:44:09,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:44:09 BoogieIcfgContainer [2020-12-22 03:44:09,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 03:44:09,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 03:44:09,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 03:44:09,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 03:44:09,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:44:08" (1/3) ... [2020-12-22 03:44:09,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@debf17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:44:09, skipping insertion in model container [2020-12-22 03:44:09,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:44:08" (2/3) ... [2020-12-22 03:44:09,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@debf17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:44:09, skipping insertion in model container [2020-12-22 03:44:09,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:44:09" (3/3) ... [2020-12-22 03:44:09,876 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0250a.c [2020-12-22 03:44:09,889 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 03:44:09,900 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 03:44:09,921 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 03:44:09,966 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 03:44:09,966 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 03:44:09,966 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 03:44:09,966 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 03:44:09,966 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 03:44:09,967 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 03:44:09,967 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 03:44:09,967 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 03:44:09,987 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-12-22 03:44:09,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 03:44:09,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:44:09,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:44:09,995 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:44:10,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:44:10,001 INFO L82 PathProgramCache]: Analyzing trace with hash 2046089236, now seen corresponding path program 1 times [2020-12-22 03:44:10,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:44:10,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269702149] [2020-12-22 03:44:10,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:44:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:44:10,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:44:10,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269702149] [2020-12-22 03:44:10,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 03:44:10,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 03:44:10,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88561815] [2020-12-22 03:44:10,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 03:44:10,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:44:10,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 03:44:10,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 03:44:10,221 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 2 states. [2020-12-22 03:44:10,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:44:10,252 INFO L93 Difference]: Finished difference Result 142 states and 232 transitions. [2020-12-22 03:44:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 03:44:10,254 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-22 03:44:10,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:44:10,265 INFO L225 Difference]: With dead ends: 142 [2020-12-22 03:44:10,265 INFO L226 Difference]: Without dead ends: 69 [2020-12-22 03:44:10,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 03:44:10,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-22 03:44:10,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-22 03:44:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-22 03:44:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-12-22 03:44:10,315 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 11 [2020-12-22 03:44:10,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:44:10,316 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-12-22 03:44:10,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 03:44:10,316 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-12-22 03:44:10,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 03:44:10,317 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:44:10,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:44:10,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 03:44:10,318 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:44:10,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:44:10,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1615635862, now seen corresponding path program 1 times [2020-12-22 03:44:10,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:44:10,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914394898] [2020-12-22 03:44:10,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:44:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:44:10,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:44:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:44:10,422 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:44:10,484 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 03:44:10,484 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 03:44:10,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 03:44:10,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:44:10 BoogieIcfgContainer [2020-12-22 03:44:10,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 03:44:10,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 03:44:10,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 03:44:10,578 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 03:44:10,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:44:09" (3/4) ... [2020-12-22 03:44:10,582 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 03:44:10,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 03:44:10,586 INFO L168 Benchmark]: Toolchain (without parser) took 2204.42 ms. Allocated memory is still 167.8 MB. Free memory was 142.8 MB in the beginning and 61.5 MB in the end (delta: 81.3 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-12-22 03:44:10,588 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 167.8 MB. Free memory is still 142.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:44:10,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.66 ms. Allocated memory is still 167.8 MB. Free memory was 142.8 MB in the beginning and 128.0 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-22 03:44:10,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.11 ms. Allocated memory is still 167.8 MB. Free memory was 128.0 MB in the beginning and 125.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:44:10,593 INFO L168 Benchmark]: Boogie Preprocessor took 53.97 ms. Allocated memory is still 167.8 MB. Free memory was 125.4 MB in the beginning and 122.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:44:10,595 INFO L168 Benchmark]: RCFGBuilder took 806.27 ms. Allocated memory is still 167.8 MB. Free memory was 122.9 MB in the beginning and 87.2 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 8.0 GB. [2020-12-22 03:44:10,597 INFO L168 Benchmark]: TraceAbstraction took 720.39 ms. Allocated memory is still 167.8 MB. Free memory was 86.6 MB in the beginning and 61.9 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:44:10,598 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 167.8 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:44:10,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 167.8 MB. Free memory is still 142.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 518.66 ms. Allocated memory is still 167.8 MB. Free memory was 142.8 MB in the beginning and 128.0 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 88.11 ms. Allocated memory is still 167.8 MB. Free memory was 128.0 MB in the beginning and 125.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.97 ms. Allocated memory is still 167.8 MB. Free memory was 125.4 MB in the beginning and 122.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 806.27 ms. Allocated memory is still 167.8 MB. Free memory was 122.9 MB in the beginning and 87.2 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 720.39 ms. Allocated memory is still 167.8 MB. Free memory was 86.6 MB in the beginning and 61.9 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Witness Printer took 5.10 ms. Allocated memory is still 167.8 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 245]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 154, overapproximation of someBinaryArithmeticDOUBLEoperation at line 189, overapproximation of bitwiseAnd at line 172, overapproximation of someBinaryDOUBLEComparisonOperation at line 19. Possible FailurePath: [L21] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L148-L162] static const double one_asin = 1.00000000000000000000e+00, huge_asin = 1.000e+300, pio2_hi_asin = 1.57079632679489655800e+00, pio2_lo_asin = 6.12323399573676603587e-17, pio4_hi_asin = 7.85398163397448278999e-01, pS0_asin = 1.66666666666666657415e-01, pS1_asin = -3.25565818622400915405e-01, pS2_asin = 2.01212532134862925881e-01, pS3_asin = -4.00555345006794114027e-02, pS4_asin = 7.91534994289814532176e-04, pS5_asin = 3.47933107596021167570e-05, qS1_asin = -2.40339491173441421878e+00, qS2_asin = 2.02094576023350569471e+00, qS3_asin = -6.88283971605453293030e-01, qS4_asin = 7.70381505559019352791e-02; VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L240] double x = 1.0 / 0.0; [L165] double t, w, p, q, c, r, s; [L166] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L173] COND FALSE !(ix >= 0x3ff00000) VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L184] COND TRUE ix < 0x3fe00000 VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L185] COND FALSE !(ix < 0x3e400000) [L189] t = x * x [L190-L193] p = t * (pS0_asin + t * (pS1_asin + t * (pS2_asin + t * (pS3_asin + t * (pS4_asin + t * pS5_asin))))) [L194-L195] q = one_asin + t * (qS1_asin + t * (qS2_asin + t * (qS3_asin + t * qS4_asin))) [L196] w = p / q [L197] return x + x * w; VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L241] double res = __ieee754_asin(x); [L19] return x != x; VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L244] COND TRUE !isnan_double(res) [L245] reach_error() VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...