/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-newlib/float_req_bl_0490b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:02:20,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:02:20,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:02:20,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:02:20,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:02:20,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:02:20,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:02:20,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:02:20,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:02:20,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:02:20,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:02:20,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:02:20,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:02:20,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:02:20,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:02:20,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:02:20,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:02:20,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:02:20,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:02:20,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:02:20,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:02:20,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:02:20,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:02:20,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:02:20,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:02:20,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:02:20,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:02:20,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:02:20,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:02:20,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:02:20,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:02:20,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:02:20,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:02:20,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:02:20,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:02:20,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:02:20,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:02:20,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:02:20,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:02:20,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:02:20,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:02:20,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 12:02:20,847 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:02:20,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:02:20,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:02:20,848 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:02:20,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:02:20,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:02:20,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:02:20,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:02:20,854 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:02:20,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:02:20,855 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:02:20,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:02:20,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:02:20,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:02:20,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:02:20,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:02:20,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:02:20,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:02:20,857 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:02:20,857 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:02:20,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:02:20,858 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:02:20,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:02:20,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:02:20,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:02:20,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:02:20,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:02:20,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:02:20,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:02:20,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:02:20,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:02:20,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:02:20,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:02:20,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:02:21,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:02:21,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:02:21,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:02:21,287 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:02:21,288 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:02:21,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0490b.c [2022-10-16 12:02:21,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff46f1e5/43b009373f6b4dd9aecf44a065537967/FLAG34d950bd7 [2022-10-16 12:02:22,027 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:02:22,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0490b.c [2022-10-16 12:02:22,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff46f1e5/43b009373f6b4dd9aecf44a065537967/FLAG34d950bd7 [2022-10-16 12:02:22,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff46f1e5/43b009373f6b4dd9aecf44a065537967 [2022-10-16 12:02:22,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:02:22,332 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:02:22,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:02:22,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:02:22,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:02:22,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e95e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22, skipping insertion in model container [2022-10-16 12:02:22,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:02:22,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:02:22,661 WARN L230 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/float_req_bl_0490b.c[4371,4384] [2022-10-16 12:02:22,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:02:22,673 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:02:22,720 WARN L230 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/float_req_bl_0490b.c[4371,4384] [2022-10-16 12:02:22,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:02:22,740 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:02:22,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22 WrapperNode [2022-10-16 12:02:22,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:02:22,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:02:22,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:02:22,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:02:22,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,824 INFO L138 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 143 [2022-10-16 12:02:22,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:02:22,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:02:22,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:02:22,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:02:22,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,923 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:02:22,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:02:22,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:02:22,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:02:22,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (1/1) ... [2022-10-16 12:02:22,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:02:22,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:02:23,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 12:02:23,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 12:02:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:02:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:02:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:02:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-16 12:02:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:02:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-16 12:02:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:02:23,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:02:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:02:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:02:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-10-16 12:02:23,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-10-16 12:02:23,220 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:02:23,223 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:02:23,888 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:02:23,898 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:02:23,898 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-10-16 12:02:23,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:02:23 BoogieIcfgContainer [2022-10-16 12:02:23,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:02:23,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:02:23,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:02:23,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:02:23,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:02:22" (1/3) ... [2022-10-16 12:02:23,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787b2566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:02:23, skipping insertion in model container [2022-10-16 12:02:23,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:22" (2/3) ... [2022-10-16 12:02:23,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787b2566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:02:23, skipping insertion in model container [2022-10-16 12:02:23,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:02:23" (3/3) ... [2022-10-16 12:02:23,913 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490b.c [2022-10-16 12:02:23,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:02:23,937 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-16 12:02:24,014 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:02:24,029 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3344a831, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:02:24,031 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-16 12:02:24,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 80 states have (on average 1.85) internal successors, (148), 106 states have internal predecessors, (148), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 12:02:24,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 12:02:24,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:24,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:02:24,052 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:24,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:24,061 INFO L85 PathProgramCache]: Analyzing trace with hash -566949949, now seen corresponding path program 1 times [2022-10-16 12:02:24,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:24,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174030362] [2022-10-16 12:02:24,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:24,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:24,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:24,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:24,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174030362] [2022-10-16 12:02:24,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174030362] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:24,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:24,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:02:24,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561322276] [2022-10-16 12:02:24,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:24,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 12:02:24,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:24,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 12:02:24,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 12:02:24,348 INFO L87 Difference]: Start difference. First operand has 110 states, 80 states have (on average 1.85) internal successors, (148), 106 states have internal predecessors, (148), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:24,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:24,389 INFO L93 Difference]: Finished difference Result 218 states and 304 transitions. [2022-10-16 12:02:24,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 12:02:24,391 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 12:02:24,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:24,404 INFO L225 Difference]: With dead ends: 218 [2022-10-16 12:02:24,404 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 12:02:24,410 INFO L412 NwaCegarLoop]: 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 [2022-10-16 12:02:24,415 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:24,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:24,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 12:02:24,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-10-16 12:02:24,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 62 states have (on average 1.6290322580645162) internal successors, (101), 88 states have internal predecessors, (101), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:24,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2022-10-16 12:02:24,467 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 17 [2022-10-16 12:02:24,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:24,468 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2022-10-16 12:02:24,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:24,468 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2022-10-16 12:02:24,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 12:02:24,470 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:24,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:02:24,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:02:24,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:24,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:24,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1170214479, now seen corresponding path program 1 times [2022-10-16 12:02:24,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:24,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041248028] [2022-10-16 12:02:24,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:24,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:24,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:24,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:24,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041248028] [2022-10-16 12:02:24,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041248028] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:24,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:24,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:24,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795171313] [2022-10-16 12:02:24,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:24,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:02:24,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:24,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:02:24,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:02:24,681 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:24,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:24,711 INFO L93 Difference]: Finished difference Result 172 states and 196 transitions. [2022-10-16 12:02:24,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:02:24,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 12:02:24,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:24,714 INFO L225 Difference]: With dead ends: 172 [2022-10-16 12:02:24,715 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 12:02:24,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:02:24,719 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:24,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 197 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:24,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 12:02:24,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-10-16 12:02:24,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 62 states have (on average 1.6129032258064515) internal successors, (100), 88 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:24,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2022-10-16 12:02:24,732 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 19 [2022-10-16 12:02:24,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:24,733 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2022-10-16 12:02:24,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:24,733 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2022-10-16 12:02:24,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 12:02:24,735 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:24,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:02:24,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:02:24,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:24,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:24,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1740949718, now seen corresponding path program 1 times [2022-10-16 12:02:24,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:24,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590061142] [2022-10-16 12:02:24,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:24,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:25,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:25,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:25,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590061142] [2022-10-16 12:02:25,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590061142] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:25,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:25,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:25,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155746045] [2022-10-16 12:02:25,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:25,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:02:25,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:25,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:02:25,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:02:25,105 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:25,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:25,382 INFO L93 Difference]: Finished difference Result 226 states and 270 transitions. [2022-10-16 12:02:25,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:02:25,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 12:02:25,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:25,385 INFO L225 Difference]: With dead ends: 226 [2022-10-16 12:02:25,386 INFO L226 Difference]: Without dead ends: 221 [2022-10-16 12:02:25,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:02:25,388 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 190 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:25,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 225 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:02:25,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-10-16 12:02:25,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 156. [2022-10-16 12:02:25,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 128 states have (on average 1.6484375) internal successors, (211), 154 states have internal predecessors, (211), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:25,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 213 transitions. [2022-10-16 12:02:25,417 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 213 transitions. Word has length 22 [2022-10-16 12:02:25,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:25,418 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 213 transitions. [2022-10-16 12:02:25,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 213 transitions. [2022-10-16 12:02:25,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 12:02:25,425 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:25,426 INFO L195 NwaCegarLoop]: 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] [2022-10-16 12:02:25,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:02:25,426 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __ieee754_sqrtfErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:25,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:25,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1865133374, now seen corresponding path program 1 times [2022-10-16 12:02:25,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:25,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839728067] [2022-10-16 12:02:25,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:25,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:25,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:25,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:25,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839728067] [2022-10-16 12:02:25,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839728067] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:25,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:25,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:25,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955240160] [2022-10-16 12:02:25,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:25,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:02:25,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:25,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:02:25,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:02:25,589 INFO L87 Difference]: Start difference. First operand 156 states and 213 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:25,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:25,756 INFO L93 Difference]: Finished difference Result 328 states and 440 transitions. [2022-10-16 12:02:25,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:02:25,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 12:02:25,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:25,768 INFO L225 Difference]: With dead ends: 328 [2022-10-16 12:02:25,768 INFO L226 Difference]: Without dead ends: 221 [2022-10-16 12:02:25,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:02:25,780 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 83 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:25,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 213 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:25,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-10-16 12:02:25,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 193. [2022-10-16 12:02:25,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 165 states have (on average 1.6424242424242423) internal successors, (271), 191 states have internal predecessors, (271), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:25,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 273 transitions. [2022-10-16 12:02:25,832 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 273 transitions. Word has length 23 [2022-10-16 12:02:25,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:25,837 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 273 transitions. [2022-10-16 12:02:25,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:25,838 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 273 transitions. [2022-10-16 12:02:25,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 12:02:25,839 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:25,839 INFO L195 NwaCegarLoop]: 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] [2022-10-16 12:02:25,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:02:25,844 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:25,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:25,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1985385731, now seen corresponding path program 1 times [2022-10-16 12:02:25,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:25,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548472052] [2022-10-16 12:02:25,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:25,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:25,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:25,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548472052] [2022-10-16 12:02:25,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548472052] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:25,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:25,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:25,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914035819] [2022-10-16 12:02:25,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:25,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:02:25,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:25,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:02:25,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:02:25,964 INFO L87 Difference]: Start difference. First operand 193 states and 273 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:26,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:26,022 INFO L93 Difference]: Finished difference Result 313 states and 439 transitions. [2022-10-16 12:02:26,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:02:26,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 12:02:26,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:26,026 INFO L225 Difference]: With dead ends: 313 [2022-10-16 12:02:26,026 INFO L226 Difference]: Without dead ends: 309 [2022-10-16 12:02:26,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:02:26,029 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 67 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:26,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 386 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:26,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-10-16 12:02:26,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 209. [2022-10-16 12:02:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 181 states have (on average 1.5966850828729282) internal successors, (289), 207 states have internal predecessors, (289), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:26,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 291 transitions. [2022-10-16 12:02:26,049 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 291 transitions. Word has length 24 [2022-10-16 12:02:26,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:26,050 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 291 transitions. [2022-10-16 12:02:26,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:26,050 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 291 transitions. [2022-10-16 12:02:26,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 12:02:26,052 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:26,052 INFO L195 NwaCegarLoop]: 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] [2022-10-16 12:02:26,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:02:26,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:26,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:26,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1089912717, now seen corresponding path program 1 times [2022-10-16 12:02:26,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:26,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175748307] [2022-10-16 12:02:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:26,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:26,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:26,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175748307] [2022-10-16 12:02:26,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175748307] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:26,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:26,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:26,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806069543] [2022-10-16 12:02:26,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:26,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:02:26,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:26,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:02:26,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:02:26,216 INFO L87 Difference]: Start difference. First operand 209 states and 291 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:26,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:26,358 INFO L93 Difference]: Finished difference Result 293 states and 393 transitions. [2022-10-16 12:02:26,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:02:26,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 12:02:26,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:26,361 INFO L225 Difference]: With dead ends: 293 [2022-10-16 12:02:26,361 INFO L226 Difference]: Without dead ends: 292 [2022-10-16 12:02:26,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:02:26,369 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 122 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:26,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 173 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:26,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-10-16 12:02:26,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 209. [2022-10-16 12:02:26,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 181 states have (on average 1.591160220994475) internal successors, (288), 207 states have internal predecessors, (288), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:26,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 290 transitions. [2022-10-16 12:02:26,406 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 290 transitions. Word has length 25 [2022-10-16 12:02:26,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:26,406 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 290 transitions. [2022-10-16 12:02:26,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:26,407 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2022-10-16 12:02:26,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 12:02:26,413 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:26,413 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:02:26,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:02:26,414 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:26,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:26,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1898876665, now seen corresponding path program 1 times [2022-10-16 12:02:26,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:26,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787775026] [2022-10-16 12:02:26,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:26,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:26,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:26,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:26,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787775026] [2022-10-16 12:02:26,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787775026] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:02:26,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988186541] [2022-10-16 12:02:26,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:26,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:02:26,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:02:26,574 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:02:26,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 12:02:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:26,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 12:02:26,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:02:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:26,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:02:26,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:26,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988186541] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:02:26,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:02:26,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 12:02:26,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539059479] [2022-10-16 12:02:26,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:02:26,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 12:02:26,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:26,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 12:02:26,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:02:26,802 INFO L87 Difference]: Start difference. First operand 209 states and 290 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:27,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:27,011 INFO L93 Difference]: Finished difference Result 662 states and 926 transitions. [2022-10-16 12:02:27,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 12:02:27,012 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 12:02:27,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:27,017 INFO L225 Difference]: With dead ends: 662 [2022-10-16 12:02:27,017 INFO L226 Difference]: Without dead ends: 660 [2022-10-16 12:02:27,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 12:02:27,019 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 274 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:27,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 1013 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-10-16 12:02:27,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 244. [2022-10-16 12:02:27,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 216 states have (on average 1.5509259259259258) internal successors, (335), 242 states have internal predecessors, (335), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:27,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 337 transitions. [2022-10-16 12:02:27,038 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 337 transitions. Word has length 28 [2022-10-16 12:02:27,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:27,038 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 337 transitions. [2022-10-16 12:02:27,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 337 transitions. [2022-10-16 12:02:27,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 12:02:27,040 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:27,040 INFO L195 NwaCegarLoop]: 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] [2022-10-16 12:02:27,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 12:02:27,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:02:27,255 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __ieee754_sqrtfErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:27,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:27,256 INFO L85 PathProgramCache]: Analyzing trace with hash 337557207, now seen corresponding path program 1 times [2022-10-16 12:02:27,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:27,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410570006] [2022-10-16 12:02:27,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:27,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:27,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:27,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:27,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410570006] [2022-10-16 12:02:27,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410570006] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:27,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:27,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:02:27,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182332872] [2022-10-16 12:02:27,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:27,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:02:27,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:27,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:02:27,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:02:27,437 INFO L87 Difference]: Start difference. First operand 244 states and 337 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:27,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:27,627 INFO L93 Difference]: Finished difference Result 282 states and 387 transitions. [2022-10-16 12:02:27,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:02:27,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 12:02:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:27,630 INFO L225 Difference]: With dead ends: 282 [2022-10-16 12:02:27,630 INFO L226 Difference]: Without dead ends: 281 [2022-10-16 12:02:27,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:02:27,632 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 37 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:27,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 249 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:02:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-10-16 12:02:27,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 246. [2022-10-16 12:02:27,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 218 states have (on average 1.5458715596330275) internal successors, (337), 244 states have internal predecessors, (337), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:27,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 339 transitions. [2022-10-16 12:02:27,648 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 339 transitions. Word has length 28 [2022-10-16 12:02:27,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:27,649 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 339 transitions. [2022-10-16 12:02:27,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:27,649 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 339 transitions. [2022-10-16 12:02:27,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 12:02:27,650 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:27,651 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:02:27,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 12:02:27,651 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:27,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:27,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1264365331, now seen corresponding path program 1 times [2022-10-16 12:02:27,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:27,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500931019] [2022-10-16 12:02:27,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:27,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:27,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:27,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500931019] [2022-10-16 12:02:27,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500931019] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:02:27,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247371495] [2022-10-16 12:02:27,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:27,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:02:27,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:02:27,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:02:27,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 12:02:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:27,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 12:02:27,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:02:27,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:27,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:02:27,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247371495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:27,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:02:27,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 12:02:27,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778499506] [2022-10-16 12:02:27,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:27,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:02:27,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:27,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:02:27,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:02:27,910 INFO L87 Difference]: Start difference. First operand 246 states and 339 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:27,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:27,987 INFO L93 Difference]: Finished difference Result 417 states and 574 transitions. [2022-10-16 12:02:27,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:02:27,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 12:02:27,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:27,992 INFO L225 Difference]: With dead ends: 417 [2022-10-16 12:02:27,992 INFO L226 Difference]: Without dead ends: 415 [2022-10-16 12:02:27,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:02:27,996 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 138 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:27,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 548 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:27,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-10-16 12:02:28,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 244. [2022-10-16 12:02:28,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 218 states have (on average 1.4954128440366972) internal successors, (326), 242 states have internal predecessors, (326), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 328 transitions. [2022-10-16 12:02:28,016 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 328 transitions. Word has length 29 [2022-10-16 12:02:28,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:28,020 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 328 transitions. [2022-10-16 12:02:28,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:28,021 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 328 transitions. [2022-10-16 12:02:28,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 12:02:28,022 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:28,022 INFO L195 NwaCegarLoop]: 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] [2022-10-16 12:02:28,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 12:02:28,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-10-16 12:02:28,238 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __ieee754_sqrtfErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:28,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:28,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1874339034, now seen corresponding path program 1 times [2022-10-16 12:02:28,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:28,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6167955] [2022-10-16 12:02:28,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:28,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:28,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:28,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6167955] [2022-10-16 12:02:28,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6167955] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:28,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:28,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:02:28,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989459683] [2022-10-16 12:02:28,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:28,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:02:28,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:28,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:02:28,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:02:28,448 INFO L87 Difference]: Start difference. First operand 244 states and 328 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:28,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:28,619 INFO L93 Difference]: Finished difference Result 314 states and 438 transitions. [2022-10-16 12:02:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:02:28,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 12:02:28,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:28,622 INFO L225 Difference]: With dead ends: 314 [2022-10-16 12:02:28,622 INFO L226 Difference]: Without dead ends: 309 [2022-10-16 12:02:28,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:02:28,623 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 81 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:28,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 197 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:28,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-10-16 12:02:28,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 266. [2022-10-16 12:02:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 240 states have (on average 1.4666666666666666) internal successors, (352), 264 states have internal predecessors, (352), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:28,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 354 transitions. [2022-10-16 12:02:28,640 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 354 transitions. Word has length 29 [2022-10-16 12:02:28,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:28,640 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 354 transitions. [2022-10-16 12:02:28,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:28,641 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 354 transitions. [2022-10-16 12:02:28,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 12:02:28,642 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:28,642 INFO L195 NwaCegarLoop]: 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] [2022-10-16 12:02:28,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 12:02:28,642 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:28,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:28,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2025031876, now seen corresponding path program 1 times [2022-10-16 12:02:28,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:28,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907935329] [2022-10-16 12:02:28,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:28,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:28,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:28,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:28,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907935329] [2022-10-16 12:02:28,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907935329] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:28,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:28,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:02:28,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881661624] [2022-10-16 12:02:28,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:28,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:02:28,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:28,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:02:28,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:02:28,814 INFO L87 Difference]: Start difference. First operand 266 states and 354 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:29,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:29,032 INFO L93 Difference]: Finished difference Result 351 states and 458 transitions. [2022-10-16 12:02:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:02:29,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 12:02:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:29,035 INFO L225 Difference]: With dead ends: 351 [2022-10-16 12:02:29,035 INFO L226 Difference]: Without dead ends: 350 [2022-10-16 12:02:29,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:02:29,037 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 114 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:29,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 255 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:02:29,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-10-16 12:02:29,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 265. [2022-10-16 12:02:29,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 239 states have (on average 1.4602510460251046) internal successors, (349), 263 states have internal predecessors, (349), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:29,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 351 transitions. [2022-10-16 12:02:29,053 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 351 transitions. Word has length 30 [2022-10-16 12:02:29,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:29,054 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 351 transitions. [2022-10-16 12:02:29,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:02:29,054 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 351 transitions. [2022-10-16 12:02:29,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 12:02:29,055 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:29,055 INFO L195 NwaCegarLoop]: 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] [2022-10-16 12:02:29,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 12:02:29,056 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __ieee754_sqrtfErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:29,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:29,056 INFO L85 PathProgramCache]: Analyzing trace with hash 309605967, now seen corresponding path program 1 times [2022-10-16 12:02:29,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:29,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923943011] [2022-10-16 12:02:29,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:29,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 12:02:29,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 12:02:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 12:02:29,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 12:02:29,155 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 12:02:29,156 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __ieee754_sqrtfErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2022-10-16 12:02:29,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2022-10-16 12:02:29,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2022-10-16 12:02:29,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2022-10-16 12:02:29,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2022-10-16 12:02:29,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2022-10-16 12:02:29,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2022-10-16 12:02:29,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2022-10-16 12:02:29,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2022-10-16 12:02:29,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2022-10-16 12:02:29,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2022-10-16 12:02:29,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2022-10-16 12:02:29,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2022-10-16 12:02:29,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 26 remaining) [2022-10-16 12:02:29,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2022-10-16 12:02:29,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2022-10-16 12:02:29,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2022-10-16 12:02:29,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2022-10-16 12:02:29,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2022-10-16 12:02:29,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2022-10-16 12:02:29,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2022-10-16 12:02:29,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2022-10-16 12:02:29,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2022-10-16 12:02:29,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2022-10-16 12:02:29,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2022-10-16 12:02:29,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2022-10-16 12:02:29,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 12:02:29,171 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:02:29,176 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 12:02:29,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:02:29 BoogieIcfgContainer [2022-10-16 12:02:29,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 12:02:29,276 INFO L158 Benchmark]: Toolchain (without parser) took 6947.84ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 126.4MB in the beginning and 88.0MB in the end (delta: 38.4MB). Peak memory consumption was 72.1MB. Max. memory is 8.0GB. [2022-10-16 12:02:29,276 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 153.1MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 12:02:29,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.51ms. Allocated memory is still 153.1MB. Free memory was 126.2MB in the beginning and 113.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-16 12:02:29,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.66ms. Allocated memory is still 153.1MB. Free memory was 113.4MB in the beginning and 111.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 12:02:29,277 INFO L158 Benchmark]: Boogie Preprocessor took 113.27ms. Allocated memory is still 153.1MB. Free memory was 111.3MB in the beginning and 109.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 12:02:29,278 INFO L158 Benchmark]: RCFGBuilder took 958.87ms. Allocated memory is still 153.1MB. Free memory was 109.2MB in the beginning and 124.2MB in the end (delta: -15.0MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. [2022-10-16 12:02:29,279 INFO L158 Benchmark]: TraceAbstraction took 5370.25ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 123.7MB in the beginning and 88.0MB in the end (delta: 35.7MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. [2022-10-16 12:02:29,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 153.1MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 407.51ms. Allocated memory is still 153.1MB. Free memory was 126.2MB in the beginning and 113.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 81.66ms. Allocated memory is still 153.1MB. Free memory was 113.4MB in the beginning and 111.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 113.27ms. Allocated memory is still 153.1MB. Free memory was 111.3MB in the beginning and 109.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 958.87ms. Allocated memory is still 153.1MB. Free memory was 109.2MB in the beginning and 124.2MB in the end (delta: -15.0MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. * TraceAbstraction took 5370.25ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 123.7MB in the beginning and 88.0MB in the end (delta: 35.7MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of someUnaryDOUBLEoperation at line 89, overapproximation of someBinaryArithmeticFLOAToperation at line 138, overapproximation of bitwiseAnd at line 46. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L86-L93] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L170] float x = -1.0f / 0.0f; [L171] CALL __ieee754_acosf(x) [L96] float z, p, q, r, w, s, c, df; [L97] __int32_t hx, ix; VAL [\old(x)=6442450957, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L99] ieee_float_shape_type gf_u; [L100] gf_u.value = (x) [L101] EXPR gf_u.word [L101] (hx) = gf_u.word [L103] ix = hx & 0x7fffffff VAL [\old(x)=6442450957, hx=2147483647, ix=1056964608, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L104] COND FALSE !(ix == 0x3f800000) VAL [\old(x)=6442450957, hx=2147483647, ix=1056964608, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L109] COND FALSE !(ix > 0x3f800000) VAL [\old(x)=6442450957, hx=2147483647, ix=1056964608, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L112] COND FALSE !(ix < 0x3f000000) VAL [\old(x)=6442450957, hx=2147483647, ix=1056964608, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L124] COND FALSE !(hx < 0) [L137] __int32_t idf; [L138] z = (one_acos - x) * (float)0.5 VAL [\old(x)=6442450957, hx=2147483647, ix=1056964608, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L139] CALL __ieee754_sqrtf(z) VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx = ix & 0x7fffffff=6442450945, ix = (ix & 0x007fffffL) | 0x00800000L=6442450944, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx = ix & 0x7fffffff=6442450945, ix = (ix & 0x007fffffL) | 0x00800000L=6442450944, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450944, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L31] COND FALSE !(!((hx) < 0x7f800000L)) VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450944, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L34] COND FALSE !(((hx) == 0)) VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450944, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L36] COND FALSE !(ix < 0) [L39] m = (ix >> 23) VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450944, ix = hx & 0x7fffffff=2147483647, m=255, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L40] COND FALSE !(((hx) < 0x00800000L)) VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450944, ix = hx & 0x7fffffff=2147483647, m=255, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L45] m -= 127 VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450944, ix = hx & 0x7fffffff=2147483647, m=128, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L46] ix = (ix & 0x007fffffL) | 0x00800000L VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=8388608, ix = hx & 0x7fffffff=2147483647, m=128, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L47] COND TRUE m & 1 VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=8388608, ix = hx & 0x7fffffff=2147483647, m=128, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L48] ix += ix VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=8388608, ix = hx & 0x7fffffff=2147483647, m=128, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 110 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1106 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1106 mSDsluCounter, 3588 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2431 mSDsCounter, 163 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 958 IncrementalHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 163 mSolverCounterUnsat, 1157 mSDtfsCounter, 958 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=10, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 1026 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 363 NumberOfCodeBlocks, 363 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 648 SizeOfPredicates, 4 NumberOfNonLiveVariables, 311 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 4/17 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 [2022-10-16 12:02:29,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...