/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_0686b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 03:45:35,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 03:45:35,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 03:45:35,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 03:45:35,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 03:45:35,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 03:45:35,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 03:45:35,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 03:45:35,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 03:45:35,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 03:45:35,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 03:45:35,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 03:45:35,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 03:45:35,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 03:45:35,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 03:45:35,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 03:45:35,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 03:45:35,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 03:45:35,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 03:45:35,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 03:45:35,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 03:45:35,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 03:45:35,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 03:45:35,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 03:45:35,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 03:45:35,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 03:45:35,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 03:45:35,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 03:45:35,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 03:45:35,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 03:45:35,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 03:45:35,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 03:45:35,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 03:45:35,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 03:45:35,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 03:45:35,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 03:45:35,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 03:45:35,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 03:45:35,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 03:45:35,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 03:45:35,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 03:45:35,684 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 03:45:35,741 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 03:45:35,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 03:45:35,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 03:45:35,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 03:45:35,747 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 03:45:35,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 03:45:35,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 03:45:35,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 03:45:35,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 03:45:35,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 03:45:35,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 03:45:35,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 03:45:35,750 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 03:45:35,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 03:45:35,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 03:45:35,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 03:45:35,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 03:45:35,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 03:45:35,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 03:45:35,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 03:45:35,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 03:45:35,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 03:45:35,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 03:45:35,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 03:45:35,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 03:45:35,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 03:45:36,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 03:45:36,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 03:45:36,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 03:45:36,237 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 03:45:36,238 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 03:45:36,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0686b.c [2020-12-22 03:45:36,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de2e3b241/105719cd5c774485b46048e13769de74/FLAGe3258bab4 [2020-12-22 03:45:37,018 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 03:45:37,018 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0686b.c [2020-12-22 03:45:37,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de2e3b241/105719cd5c774485b46048e13769de74/FLAGe3258bab4 [2020-12-22 03:45:37,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de2e3b241/105719cd5c774485b46048e13769de74 [2020-12-22 03:45:37,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 03:45:37,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 03:45:37,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 03:45:37,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 03:45:37,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 03:45:37,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:45:37" (1/1) ... [2020-12-22 03:45:37,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62835ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37, skipping insertion in model container [2020-12-22 03:45:37,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:45:37" (1/1) ... [2020-12-22 03:45:37,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 03:45:37,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 03:45:37,646 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_0686b.c[6207,6220] [2020-12-22 03:45:37,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:45:37,680 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 03:45:37,808 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_0686b.c[6207,6220] [2020-12-22 03:45:37,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:45:37,840 INFO L208 MainTranslator]: Completed translation [2020-12-22 03:45:37,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37 WrapperNode [2020-12-22 03:45:37,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 03:45:37,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 03:45:37,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 03:45:37,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 03:45:37,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37" (1/1) ... [2020-12-22 03:45:37,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37" (1/1) ... [2020-12-22 03:45:37,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 03:45:37,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 03:45:37,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 03:45:37,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 03:45:37,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37" (1/1) ... [2020-12-22 03:45:37,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37" (1/1) ... [2020-12-22 03:45:37,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37" (1/1) ... [2020-12-22 03:45:37,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37" (1/1) ... [2020-12-22 03:45:37,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37" (1/1) ... [2020-12-22 03:45:38,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37" (1/1) ... [2020-12-22 03:45:38,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37" (1/1) ... [2020-12-22 03:45:38,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 03:45:38,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 03:45:38,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 03:45:38,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 03:45:38,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37" (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 03:45:38,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 03:45:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 03:45:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-22 03:45:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 03:45:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-22 03:45:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 03:45:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 03:45:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 03:45:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-22 03:45:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 03:45:39,235 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 03:45:39,235 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2020-12-22 03:45:39,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:45:39 BoogieIcfgContainer [2020-12-22 03:45:39,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 03:45:39,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 03:45:39,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 03:45:39,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 03:45:39,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:45:37" (1/3) ... [2020-12-22 03:45:39,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c5dd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:45:39, skipping insertion in model container [2020-12-22 03:45:39,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:37" (2/3) ... [2020-12-22 03:45:39,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c5dd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:45:39, skipping insertion in model container [2020-12-22 03:45:39,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:45:39" (3/3) ... [2020-12-22 03:45:39,247 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686b.c [2020-12-22 03:45:39,254 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 03:45:39,260 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 03:45:39,281 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 03:45:39,313 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 03:45:39,313 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 03:45:39,313 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 03:45:39,313 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 03:45:39,313 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 03:45:39,314 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 03:45:39,314 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 03:45:39,314 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 03:45:39,335 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2020-12-22 03:45:39,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 03:45:39,341 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:45:39,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:45:39,343 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:45:39,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:45:39,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2020-12-22 03:45:39,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:45:39,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865783912] [2020-12-22 03:45:39,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:45:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:45:39,556 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 03:45:39,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865783912] [2020-12-22 03:45:39,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 03:45:39,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 03:45:39,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017871949] [2020-12-22 03:45:39,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 03:45:39,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:45:39,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 03:45:39,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 03:45:39,582 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2020-12-22 03:45:39,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:45:39,619 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2020-12-22 03:45:39,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 03:45:39,622 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-22 03:45:39,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:45:39,653 INFO L225 Difference]: With dead ends: 224 [2020-12-22 03:45:39,653 INFO L226 Difference]: Without dead ends: 110 [2020-12-22 03:45:39,659 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 03:45:39,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-12-22 03:45:39,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-12-22 03:45:39,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-12-22 03:45:39,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2020-12-22 03:45:39,704 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2020-12-22 03:45:39,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:45:39,704 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2020-12-22 03:45:39,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 03:45:39,704 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2020-12-22 03:45:39,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 03:45:39,705 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:45:39,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:45:39,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 03:45:39,706 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:45:39,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:45:39,707 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2020-12-22 03:45:39,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:45:39,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256229921] [2020-12-22 03:45:39,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:45:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:45:39,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:45:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:45:39,904 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:45:39,940 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 03:45:39,941 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 03:45:39,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 03:45:39,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:45:39 BoogieIcfgContainer [2020-12-22 03:45:39,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 03:45:39,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 03:45:39,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 03:45:39,994 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 03:45:39,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:45:39" (3/4) ... [2020-12-22 03:45:39,999 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 03:45:39,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 03:45:40,002 INFO L168 Benchmark]: Toolchain (without parser) took 2680.89 ms. Allocated memory is still 155.2 MB. Free memory was 129.5 MB in the beginning and 69.6 MB in the end (delta: 59.8 MB). Peak memory consumption was 59.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:40,003 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 155.2 MB. Free memory is still 128.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:45:40,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.32 ms. Allocated memory is still 155.2 MB. Free memory was 129.2 MB in the beginning and 114.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:40,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.80 ms. Allocated memory is still 155.2 MB. Free memory was 114.2 MB in the beginning and 110.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:40,006 INFO L168 Benchmark]: Boogie Preprocessor took 120.27 ms. Allocated memory is still 155.2 MB. Free memory was 110.9 MB in the beginning and 107.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:40,007 INFO L168 Benchmark]: RCFGBuilder took 1190.09 ms. Allocated memory is still 155.2 MB. Free memory was 107.7 MB in the beginning and 105.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:40,008 INFO L168 Benchmark]: TraceAbstraction took 753.95 ms. Allocated memory is still 155.2 MB. Free memory was 105.3 MB in the beginning and 70.1 MB in the end (delta: 35.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:40,008 INFO L168 Benchmark]: Witness Printer took 5.60 ms. Allocated memory is still 155.2 MB. Free memory was 70.1 MB in the beginning and 69.6 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:45:40,013 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 155.2 MB. Free memory is still 128.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 517.32 ms. Allocated memory is still 155.2 MB. Free memory was 129.2 MB in the beginning and 114.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 77.80 ms. Allocated memory is still 155.2 MB. Free memory was 114.2 MB in the beginning and 110.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 120.27 ms. Allocated memory is still 155.2 MB. Free memory was 110.9 MB in the beginning and 107.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1190.09 ms. Allocated memory is still 155.2 MB. Free memory was 107.7 MB in the beginning and 105.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 753.95 ms. Allocated memory is still 155.2 MB. Free memory was 105.3 MB in the beginning and 70.1 MB in the end (delta: 35.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 8.0 GB. * Witness Printer took 5.60 ms. Allocated memory is still 155.2 MB. Free memory was 70.1 MB in the beginning and 69.6 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 258]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L252] double x = 1.0 / 0.0; [L253] double y = -1.0 / 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != -pi_o_4 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L258] reach_error() VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 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=113occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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...