/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_0480.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:02:17,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:02:17,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:02:17,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:02:17,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:02:17,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:02:17,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:02:17,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:02:17,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:02:17,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:02:17,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:02:17,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:02:17,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:02:17,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:02:17,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:02:17,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:02:17,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:02:17,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:02:17,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:02:17,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:02:17,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:02:17,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:02:17,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:02:17,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:02:17,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:02:17,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:02:17,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:02:17,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:02:17,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:02:17,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:02:17,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:02:17,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:02:17,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:02:17,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:02:17,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:02:17,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:02:17,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:02:17,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:02:17,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:02:17,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:02:17,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:02:17,833 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 12:02:17,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:02:17,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:02:17,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:02:17,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:02:17,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:02:17,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:02:17,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:02:17,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:02:17,901 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:02:17,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:02:17,902 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:02:17,902 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:02:17,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:02:17,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:02:17,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:02:17,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:02:17,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:02:17,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:02:17,904 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:02:17,905 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:02:17,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:02:17,905 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:02:17,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:02:17,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:02:17,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:02:17,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:02:17,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:02:17,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:02:17,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:02:17,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:02:17,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:02:17,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:02:17,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:02:17,909 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:02:18,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:02:18,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:02:18,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:02:18,385 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:02:18,386 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:02:18,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2022-10-16 12:02:18,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/560004554/2e44ad5814d44a7f9c467b27c9ea3008/FLAG5bdf5b663 [2022-10-16 12:02:19,128 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:02:19,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2022-10-16 12:02:19,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/560004554/2e44ad5814d44a7f9c467b27c9ea3008/FLAG5bdf5b663 [2022-10-16 12:02:19,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/560004554/2e44ad5814d44a7f9c467b27c9ea3008 [2022-10-16 12:02:19,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:02:19,501 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:02:19,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:02:19,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:02:19,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:02:19,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:19,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15dd66e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19, skipping insertion in model container [2022-10-16 12:02:19,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:19,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:02:19,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:02:19,796 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_0480.c[4489,4502] [2022-10-16 12:02:19,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:02:19,823 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:02:19,931 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_0480.c[4489,4502] [2022-10-16 12:02:19,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:02:19,960 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:02:19,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19 WrapperNode [2022-10-16 12:02:19,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:02:19,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:02:19,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:02:19,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:02:19,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:20,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:20,074 INFO L138 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 160 [2022-10-16 12:02:20,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:02:20,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:02:20,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:02:20,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:02:20,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:20,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:20,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:20,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:20,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:20,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:20,163 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:20,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:20,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:02:20,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:02:20,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:02:20,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:02:20,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (1/1) ... [2022-10-16 12:02:20,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:02:20,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:02:20,220 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 12:02:20,241 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 12:02:20,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:02:20,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:02:20,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:02:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-16 12:02:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:02:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-16 12:02:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:02:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:02:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:02:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:02:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-10-16 12:02:20,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-10-16 12:02:20,398 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:02:20,402 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:02:21,159 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:02:21,169 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:02:21,169 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-10-16 12:02:21,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:02:21 BoogieIcfgContainer [2022-10-16 12:02:21,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:02:21,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:02:21,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:02:21,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:02:21,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:02:19" (1/3) ... [2022-10-16 12:02:21,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452e7d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:02:21, skipping insertion in model container [2022-10-16 12:02:21,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19" (2/3) ... [2022-10-16 12:02:21,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452e7d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:02:21, skipping insertion in model container [2022-10-16 12:02:21,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:02:21" (3/3) ... [2022-10-16 12:02:21,184 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2022-10-16 12:02:21,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:02:21,208 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-16 12:02:21,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:02:21,315 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;@7d16417f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:02:21,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-16 12:02:21,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 84 states have (on average 1.8452380952380953) internal successors, (155), 110 states have internal predecessors, (155), 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 12:02:21,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 12:02:21,335 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:21,336 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 12:02:21,338 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 12:02:21,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:21,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1550401962, now seen corresponding path program 1 times [2022-10-16 12:02:21,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:21,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377244899] [2022-10-16 12:02:21,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:21,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:21,653 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 12:02:21,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:21,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377244899] [2022-10-16 12:02:21,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377244899] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:21,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:21,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:02:21,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555384938] [2022-10-16 12:02:21,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:21,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 12:02:21,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:21,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 12:02:21,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 12:02:21,724 INFO L87 Difference]: Start difference. First operand has 114 states, 84 states have (on average 1.8452380952380953) internal successors, (155), 110 states have internal predecessors, (155), 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 12:02:21,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:21,803 INFO L93 Difference]: Finished difference Result 226 states and 318 transitions. [2022-10-16 12:02:21,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 12:02:21,806 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 12:02:21,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:21,820 INFO L225 Difference]: With dead ends: 226 [2022-10-16 12:02:21,821 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 12:02:21,833 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 12:02:21,844 INFO L413 NwaCegarLoop]: 137 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, 137 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 12:02:21,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:21,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 12:02:21,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-10-16 12:02:21,910 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 12:02:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2022-10-16 12:02:21,922 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 17 [2022-10-16 12:02:21,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:21,923 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2022-10-16 12:02:21,923 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 12:02:21,924 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2022-10-16 12:02:21,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 12:02:21,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:21,927 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 12:02:21,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:02:21,928 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 12:02:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:21,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1592455791, now seen corresponding path program 1 times [2022-10-16 12:02:21,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:21,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856749737] [2022-10-16 12:02:21,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:21,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:22,178 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 12:02:22,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:22,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856749737] [2022-10-16 12:02:22,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856749737] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:22,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:22,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:22,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077946401] [2022-10-16 12:02:22,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:22,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:02:22,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:22,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:02:22,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:02:22,183 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 12:02:22,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:22,230 INFO L93 Difference]: Finished difference Result 172 states and 196 transitions. [2022-10-16 12:02:22,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:02:22,238 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 12:02:22,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:22,240 INFO L225 Difference]: With dead ends: 172 [2022-10-16 12:02:22,240 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 12:02:22,241 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 12:02:22,243 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 12:02:22,244 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 12:02:22,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 12:02:22,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-10-16 12:02:22,262 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 12:02:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2022-10-16 12:02:22,263 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 19 [2022-10-16 12:02:22,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:22,267 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2022-10-16 12:02:22,267 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 12:02:22,267 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2022-10-16 12:02:22,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 12:02:22,270 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:22,270 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 12:02:22,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:02:22,271 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 12:02:22,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:22,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1318708406, now seen corresponding path program 1 times [2022-10-16 12:02:22,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:22,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484107194] [2022-10-16 12:02:22,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:22,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:22,547 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 12:02:22,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:22,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484107194] [2022-10-16 12:02:22,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484107194] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:22,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:22,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:22,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557504097] [2022-10-16 12:02:22,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:22,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:02:22,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:22,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:02:22,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:02:22,557 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 12:02:22,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:22,805 INFO L93 Difference]: Finished difference Result 226 states and 270 transitions. [2022-10-16 12:02:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:02:22,805 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 12:02:22,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:22,811 INFO L225 Difference]: With dead ends: 226 [2022-10-16 12:02:22,811 INFO L226 Difference]: Without dead ends: 221 [2022-10-16 12:02:22,815 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 12:02:22,819 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 157 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:22,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 256 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:02:22,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-10-16 12:02:22,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 156. [2022-10-16 12:02:22,859 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 12:02:22,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 213 transitions. [2022-10-16 12:02:22,861 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 213 transitions. Word has length 22 [2022-10-16 12:02:22,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:22,861 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 213 transitions. [2022-10-16 12:02:22,863 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 12:02:22,863 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 213 transitions. [2022-10-16 12:02:22,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 12:02:22,866 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:22,866 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 12:02:22,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:02:22,868 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 12:02:22,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:22,869 INFO L85 PathProgramCache]: Analyzing trace with hash -2069712139, now seen corresponding path program 1 times [2022-10-16 12:02:22,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:22,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71501620] [2022-10-16 12:02:22,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:22,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:23,113 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 12:02:23,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:23,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71501620] [2022-10-16 12:02:23,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71501620] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:23,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:23,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:23,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921030040] [2022-10-16 12:02:23,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:23,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:02:23,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:23,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:02:23,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:02:23,119 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 12:02:23,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:23,259 INFO L93 Difference]: Finished difference Result 328 states and 440 transitions. [2022-10-16 12:02:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:02:23,259 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 12:02:23,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:23,262 INFO L225 Difference]: With dead ends: 328 [2022-10-16 12:02:23,262 INFO L226 Difference]: Without dead ends: 221 [2022-10-16 12:02:23,263 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 12:02:23,265 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 12:02:23,266 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 12:02:23,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-10-16 12:02:23,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 193. [2022-10-16 12:02:23,281 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 12:02:23,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 273 transitions. [2022-10-16 12:02:23,283 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 273 transitions. Word has length 23 [2022-10-16 12:02:23,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:23,284 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 273 transitions. [2022-10-16 12:02:23,284 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 12:02:23,284 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 273 transitions. [2022-10-16 12:02:23,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 12:02:23,286 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:23,286 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 12:02:23,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:02:23,286 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 12:02:23,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:23,287 INFO L85 PathProgramCache]: Analyzing trace with hash 262607165, now seen corresponding path program 1 times [2022-10-16 12:02:23,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:23,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941901883] [2022-10-16 12:02:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:23,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:23,397 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 12:02:23,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:23,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941901883] [2022-10-16 12:02:23,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941901883] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:23,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:23,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:23,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790806503] [2022-10-16 12:02:23,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:23,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:02:23,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:23,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:02:23,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:02:23,401 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 12:02:23,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:23,455 INFO L93 Difference]: Finished difference Result 313 states and 439 transitions. [2022-10-16 12:02:23,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:02:23,456 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 12:02:23,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:23,458 INFO L225 Difference]: With dead ends: 313 [2022-10-16 12:02:23,458 INFO L226 Difference]: Without dead ends: 309 [2022-10-16 12:02:23,459 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 12:02:23,461 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 12:02:23,461 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 12:02:23,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-10-16 12:02:23,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 209. [2022-10-16 12:02:23,477 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 12:02:23,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 291 transitions. [2022-10-16 12:02:23,479 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 291 transitions. Word has length 24 [2022-10-16 12:02:23,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:23,480 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 291 transitions. [2022-10-16 12:02:23,480 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 12:02:23,481 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 291 transitions. [2022-10-16 12:02:23,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 12:02:23,482 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:23,482 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 12:02:23,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:02:23,483 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 12:02:23,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:23,484 INFO L85 PathProgramCache]: Analyzing trace with hash -121609658, now seen corresponding path program 1 times [2022-10-16 12:02:23,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:23,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120372390] [2022-10-16 12:02:23,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:23,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:23,630 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 12:02:23,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:23,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120372390] [2022-10-16 12:02:23,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120372390] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:23,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:23,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:23,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826936677] [2022-10-16 12:02:23,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:23,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:02:23,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:23,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:02:23,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:02:23,634 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 12:02:23,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:23,775 INFO L93 Difference]: Finished difference Result 293 states and 393 transitions. [2022-10-16 12:02:23,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:02:23,775 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 12:02:23,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:23,778 INFO L225 Difference]: With dead ends: 293 [2022-10-16 12:02:23,778 INFO L226 Difference]: Without dead ends: 292 [2022-10-16 12:02:23,779 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 12:02:23,780 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 12:02:23,780 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 12:02:23,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-10-16 12:02:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 209. [2022-10-16 12:02:23,792 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 12:02:23,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 290 transitions. [2022-10-16 12:02:23,794 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 290 transitions. Word has length 25 [2022-10-16 12:02:23,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:23,795 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 290 transitions. [2022-10-16 12:02:23,795 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 12:02:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2022-10-16 12:02:23,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 12:02:23,798 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:23,798 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 12:02:23,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:02:23,801 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 12:02:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -680001031, now seen corresponding path program 1 times [2022-10-16 12:02:23,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:23,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667887168] [2022-10-16 12:02:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:23,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:23,959 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 12:02:23,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:23,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667887168] [2022-10-16 12:02:23,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667887168] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:02:23,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956467238] [2022-10-16 12:02:23,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:23,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:02:23,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:02:23,964 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 12:02:23,986 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 12:02:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:24,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 12:02:24,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:02:24,171 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 12:02:24,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:02:24,223 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 12:02:24,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956467238] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:02:24,224 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:02:24,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 12:02:24,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833065654] [2022-10-16 12:02:24,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:02:24,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 12:02:24,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:24,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 12:02:24,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:02:24,227 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 12:02:24,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:24,437 INFO L93 Difference]: Finished difference Result 662 states and 926 transitions. [2022-10-16 12:02:24,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 12:02:24,438 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 12:02:24,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:24,449 INFO L225 Difference]: With dead ends: 662 [2022-10-16 12:02:24,449 INFO L226 Difference]: Without dead ends: 660 [2022-10-16 12:02:24,451 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 12:02:24,455 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 272 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:24,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 1387 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:24,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-10-16 12:02:24,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 244. [2022-10-16 12:02:24,476 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 12:02:24,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 337 transitions. [2022-10-16 12:02:24,479 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 337 transitions. Word has length 28 [2022-10-16 12:02:24,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:24,479 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 337 transitions. [2022-10-16 12:02:24,480 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 12:02:24,480 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 337 transitions. [2022-10-16 12:02:24,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 12:02:24,481 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:24,482 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 12:02:24,528 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 12:02:24,696 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 12:02:24,696 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 12:02:24,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:24,697 INFO L85 PathProgramCache]: Analyzing trace with hash 2053646807, now seen corresponding path program 1 times [2022-10-16 12:02:24,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:24,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183230280] [2022-10-16 12:02:24,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:24,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:24,947 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 12:02:24,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:24,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183230280] [2022-10-16 12:02:24,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183230280] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:24,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:24,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:02:24,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481394019] [2022-10-16 12:02:24,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:24,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:02:24,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:24,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:02:24,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:02:24,951 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 12:02:25,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:25,105 INFO L93 Difference]: Finished difference Result 282 states and 387 transitions. [2022-10-16 12:02:25,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:02:25,106 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 12:02:25,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:25,108 INFO L225 Difference]: With dead ends: 282 [2022-10-16 12:02:25,108 INFO L226 Difference]: Without dead ends: 281 [2022-10-16 12:02:25,109 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 12:02:25,110 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 41 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:25,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 242 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:25,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-10-16 12:02:25,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 246. [2022-10-16 12:02:25,123 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 12:02:25,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 339 transitions. [2022-10-16 12:02:25,125 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 339 transitions. Word has length 28 [2022-10-16 12:02:25,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:25,125 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 339 transitions. [2022-10-16 12:02:25,125 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 12:02:25,126 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 339 transitions. [2022-10-16 12:02:25,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 12:02:25,127 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:25,127 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 12:02:25,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 12:02:25,127 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 12:02:25,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:25,128 INFO L85 PathProgramCache]: Analyzing trace with hash 394804736, now seen corresponding path program 1 times [2022-10-16 12:02:25,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:25,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246598723] [2022-10-16 12:02:25,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:25,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:25,237 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 12:02:25,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:25,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246598723] [2022-10-16 12:02:25,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246598723] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:02:25,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063547484] [2022-10-16 12:02:25,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:25,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:02:25,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:02:25,239 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 12:02:25,261 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 12:02:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:25,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 12:02:25,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:02:25,372 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 12:02:25,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:02:25,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063547484] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:25,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:02:25,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 12:02:25,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759285693] [2022-10-16 12:02:25,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:25,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:02:25,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:25,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:02:25,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:02:25,375 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 12:02:25,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:25,443 INFO L93 Difference]: Finished difference Result 417 states and 574 transitions. [2022-10-16 12:02:25,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:02:25,444 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 12:02:25,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:25,447 INFO L225 Difference]: With dead ends: 417 [2022-10-16 12:02:25,447 INFO L226 Difference]: Without dead ends: 415 [2022-10-16 12:02:25,447 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 12:02:25,448 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 134 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:25,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 834 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:25,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-10-16 12:02:25,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 244. [2022-10-16 12:02:25,463 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 12:02:25,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 328 transitions. [2022-10-16 12:02:25,464 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 328 transitions. Word has length 29 [2022-10-16 12:02:25,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:25,465 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 328 transitions. [2022-10-16 12:02:25,465 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 12:02:25,465 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 328 transitions. [2022-10-16 12:02:25,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 12:02:25,466 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:25,467 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 12:02:25,504 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 12:02:25,681 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 12:02:25,682 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 12:02:25,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:25,684 INFO L85 PathProgramCache]: Analyzing trace with hash -761458195, now seen corresponding path program 1 times [2022-10-16 12:02:25,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:25,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317309690] [2022-10-16 12:02:25,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:25,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:25,810 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 12:02:25,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:25,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317309690] [2022-10-16 12:02:25,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317309690] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:25,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:25,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:02:25,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401126492] [2022-10-16 12:02:25,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:25,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:02:25,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:25,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:02:25,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:02:25,813 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 12:02:25,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:25,990 INFO L93 Difference]: Finished difference Result 314 states and 438 transitions. [2022-10-16 12:02:25,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:02:25,991 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 12:02:25,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:25,993 INFO L225 Difference]: With dead ends: 314 [2022-10-16 12:02:25,993 INFO L226 Difference]: Without dead ends: 309 [2022-10-16 12:02:25,994 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 12:02:25,994 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 77 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:25,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 261 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:25,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-10-16 12:02:26,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 266. [2022-10-16 12:02:26,008 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 12:02:26,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 354 transitions. [2022-10-16 12:02:26,010 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 354 transitions. Word has length 29 [2022-10-16 12:02:26,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:26,011 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 354 transitions. [2022-10-16 12:02:26,011 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 12:02:26,011 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 354 transitions. [2022-10-16 12:02:26,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 12:02:26,012 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:26,012 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 12:02:26,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 12:02:26,013 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 12:02:26,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:26,014 INFO L85 PathProgramCache]: Analyzing trace with hash -2130367332, now seen corresponding path program 1 times [2022-10-16 12:02:26,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:26,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674686739] [2022-10-16 12:02:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:26,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:26,206 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 12:02:26,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:26,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674686739] [2022-10-16 12:02:26,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674686739] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:26,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:26,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:02:26,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314924659] [2022-10-16 12:02:26,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:26,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:02:26,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:26,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:02:26,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:02:26,209 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 12:02:26,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:26,381 INFO L93 Difference]: Finished difference Result 351 states and 458 transitions. [2022-10-16 12:02:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:02:26,381 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 12:02:26,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:26,384 INFO L225 Difference]: With dead ends: 351 [2022-10-16 12:02:26,384 INFO L226 Difference]: Without dead ends: 350 [2022-10-16 12:02:26,385 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 12:02:26,385 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 118 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:26,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 237 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:26,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-10-16 12:02:26,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 265. [2022-10-16 12:02:26,399 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 12:02:26,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 351 transitions. [2022-10-16 12:02:26,401 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 351 transitions. Word has length 30 [2022-10-16 12:02:26,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:26,401 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 351 transitions. [2022-10-16 12:02:26,401 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 12:02:26,402 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 351 transitions. [2022-10-16 12:02:26,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 12:02:26,402 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:26,403 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 12:02:26,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 12:02:26,403 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 12:02:26,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:26,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2133516911, now seen corresponding path program 1 times [2022-10-16 12:02:26,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:26,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794958196] [2022-10-16 12:02:26,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:26,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 12:02:26,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 12:02:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 12:02:26,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 12:02:26,510 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 12:02:26,512 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __ieee754_sqrtfErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2022-10-16 12:02:26,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2022-10-16 12:02:26,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2022-10-16 12:02:26,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2022-10-16 12:02:26,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2022-10-16 12:02:26,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2022-10-16 12:02:26,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2022-10-16 12:02:26,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2022-10-16 12:02:26,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2022-10-16 12:02:26,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2022-10-16 12:02:26,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2022-10-16 12:02:26,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2022-10-16 12:02:26,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2022-10-16 12:02:26,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 26 remaining) [2022-10-16 12:02:26,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2022-10-16 12:02:26,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2022-10-16 12:02:26,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2022-10-16 12:02:26,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2022-10-16 12:02:26,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2022-10-16 12:02:26,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2022-10-16 12:02:26,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2022-10-16 12:02:26,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2022-10-16 12:02:26,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2022-10-16 12:02:26,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2022-10-16 12:02:26,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2022-10-16 12:02:26,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2022-10-16 12:02:26,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 12:02:26,526 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:02:26,530 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 12:02:26,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:02:26 BoogieIcfgContainer [2022-10-16 12:02:26,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 12:02:26,625 INFO L158 Benchmark]: Toolchain (without parser) took 7127.47ms. Allocated memory was 161.5MB in the beginning and 211.8MB in the end (delta: 50.3MB). Free memory was 135.3MB in the beginning and 143.9MB in the end (delta: -8.6MB). Peak memory consumption was 42.7MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,625 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 161.5MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 12:02:26,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.06ms. Allocated memory is still 161.5MB. Free memory was 135.3MB in the beginning and 121.8MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.97ms. Allocated memory is still 161.5MB. Free memory was 121.8MB in the beginning and 119.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,626 INFO L158 Benchmark]: Boogie Preprocessor took 97.40ms. Allocated memory is still 161.5MB. Free memory was 119.8MB in the beginning and 117.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,626 INFO L158 Benchmark]: RCFGBuilder took 995.89ms. Allocated memory is still 161.5MB. Free memory was 117.6MB in the beginning and 131.1MB in the end (delta: -13.4MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,627 INFO L158 Benchmark]: TraceAbstraction took 5448.86ms. Allocated memory was 161.5MB in the beginning and 211.8MB in the end (delta: 50.3MB). Free memory was 130.6MB in the beginning and 143.9MB in the end (delta: -13.3MB). Peak memory consumption was 38.6MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,629 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 161.5MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 455.06ms. Allocated memory is still 161.5MB. Free memory was 135.3MB in the beginning and 121.8MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 112.97ms. Allocated memory is still 161.5MB. Free memory was 121.8MB in the beginning and 119.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 97.40ms. Allocated memory is still 161.5MB. Free memory was 119.8MB in the beginning and 117.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 995.89ms. Allocated memory is still 161.5MB. Free memory was 117.6MB in the beginning and 131.1MB in the end (delta: -13.4MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5448.86ms. Allocated memory was 161.5MB in the beginning and 211.8MB in the end (delta: 50.3MB). Free memory was 130.6MB in the beginning and 143.9MB in the end (delta: -13.3MB). Peak memory consumption was 38.6MB. 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: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of someUnaryDOUBLEoperation at line 86, overapproximation of someBinaryArithmeticFLOAToperation at line 135, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L83-L90] 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=15707962513/5000000000, 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] [L179] float x = 1.0f; [L180] CALL __ieee754_acosf(x) [L93] float z, p, q, r, w, s, c, df; [L94] __int32_t hx, ix; VAL [\old(x)=1, 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=1] [L96] ieee_float_shape_type gf_u; [L97] gf_u.value = (x) [L98] EXPR gf_u.word [L98] (hx) = gf_u.word [L100] ix = hx & 0x7fffffff VAL [\old(x)=1, hx=2147483647, ix=1056964608, 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=1] [L101] COND FALSE !(ix == 0x3f800000) VAL [\old(x)=1, 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=1] [L106] COND FALSE !(ix > 0x3f800000) VAL [\old(x)=1, 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=1] [L109] COND FALSE !(ix < 0x3f000000) VAL [\old(x)=1, 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=1] [L121] COND FALSE !(hx < 0) [L134] __int32_t idf; [L135] z = (one_acos - x) * (float)0.5 VAL [\old(x)=1, 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=1] [L136] 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=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] [L17] float z; [L18] __uint32_t r, hx; [L19] __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=15707962513/10000000000, 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] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L26] 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] [L28] 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=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] [L31] 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=15707962513/5000000000, 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=6442450956] [L33] COND FALSE !(ix < 0) [L36] 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=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=6442450956] [L37] 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=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] [L42] 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=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] [L43] 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=1073741824, ix = (ix & 0x007fffffL) | 0x00800000L=6442450944, ix = hx & 0x7fffffff=2147483647, m=128, 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=6442450956] [L44] 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=1073741824, ix = (ix & 0x007fffffL) | 0x00800000L=6442450944, ix = hx & 0x7fffffff=2147483647, m=128, 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] [L45] ix += ix VAL [\old(hx = ix & 0x7fffffff)=6442450945, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450944, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=1073741824, ix = (ix & 0x007fffffL) | 0x00800000L=6442450944, ix = hx & 0x7fffffff=2147483647, m=128, 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] - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: 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: 48]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: 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: 68]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: 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: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: 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, 114 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1071 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1071 mSDsluCounter, 4323 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3096 mSDsCounter, 156 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 932 IncrementalHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 156 mSolverCounterUnsat, 1227 mSDtfsCounter, 932 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, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 363 NumberOfCodeBlocks, 363 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 648 SizeOfPredicates, 4 NumberOfNonLiveVariables, 315 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 12:02:26,682 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...