/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_0460.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:02:16,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:02:16,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:02:16,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:02:16,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:02:16,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:02:16,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:02:16,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:02:16,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:02:16,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:02:16,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:02:16,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:02:16,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:02:16,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:02:16,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:02:16,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:02:16,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:02:16,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:02:16,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:02:16,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:02:16,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:02:16,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:02:16,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:02:16,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:02:16,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 12:02:16,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:02:16,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:02:16,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:02:16,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:02:16,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:02:16,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:02:16,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:02:16,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:02:16,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:02:16,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:02:16,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:02:16,946 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 12:02:17,006 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:02:17,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:02:17,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:02:17,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:02:17,010 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:02:17,010 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:02:17,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:02:17,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:02:17,014 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:02:17,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:02:17,015 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:02:17,015 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:02:17,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:02:17,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:02:17,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:02:17,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:02:17,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:02:17,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:02:17,017 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:02:17,017 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:02:17,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:02:17,018 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:02:17,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:02:17,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:02:17,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:02:17,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:02:17,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:02:17,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:02:17,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:02:17,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:02:17,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:02:17,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:02:17,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:02:17,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:02:17,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:02:17,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:02:17,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:02:17,458 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:02:17,459 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:02:17,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0460.c [2022-10-16 12:02:17,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba461287e/a77f387d16af411286fc69c799a12c4a/FLAGfb700e544 [2022-10-16 12:02:18,277 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:02:18,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0460.c [2022-10-16 12:02:18,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba461287e/a77f387d16af411286fc69c799a12c4a/FLAGfb700e544 [2022-10-16 12:02:18,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba461287e/a77f387d16af411286fc69c799a12c4a [2022-10-16 12:02:18,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:02:18,629 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:02:18,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:02:18,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:02:18,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:02:18,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:18" (1/1) ... [2022-10-16 12:02:18,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10cca480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:18, skipping insertion in model container [2022-10-16 12:02:18,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:18" (1/1) ... [2022-10-16 12:02:18,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:02:18,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:02:18,959 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_0460.c[4448,4461] [2022-10-16 12:02:18,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:02:18,982 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:02:19,091 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_0460.c[4448,4461] [2022-10-16 12:02:19,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:02:19,127 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:02:19,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:19 WrapperNode [2022-10-16 12:02:19,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:02:19,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:02:19,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:02:19,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:02:19,140 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 12:02:19,175 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 12:02:19,229 INFO L138 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2022-10-16 12:02:19,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:02:19,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:02:19,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:02:19,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:02:19,247 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 12:02:19,247 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 12:02:19,269 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 12:02:19,271 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 12:02:19,302 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 12:02:19,319 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 12:02:19,327 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 12:02:19,329 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 12:02:19,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:02:19,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:02:19,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:02:19,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:02:19,340 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 12:02:19,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:02:19,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:02:19,381 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 12:02:19,401 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 12:02:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:02:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:02:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:02:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-16 12:02:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:02:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-16 12:02:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:02:19,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:02:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:02:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:02:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-10-16 12:02:19,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-10-16 12:02:19,558 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:02:19,560 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:02:20,325 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:02:20,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:02:20,348 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-10-16 12:02:20,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:02:20 BoogieIcfgContainer [2022-10-16 12:02:20,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:02:20,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:02:20,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:02:20,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:02:20,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:02:18" (1/3) ... [2022-10-16 12:02:20,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a95faf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:02:20, skipping insertion in model container [2022-10-16 12:02:20,383 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 12:02:20,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a95faf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:02:20, skipping insertion in model container [2022-10-16 12:02:20,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:02:20" (3/3) ... [2022-10-16 12:02:20,391 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0460.c [2022-10-16 12:02:20,450 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:02:20,450 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-16 12:02:20,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:02:20,576 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;@3628b02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:02:20,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-16 12:02:20,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 82 states have (on average 1.8414634146341464) internal successors, (151), 108 states have internal predecessors, (151), 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 12:02:20,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 12:02:20,598 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:20,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:02:20,599 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 12:02:20,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:20,607 INFO L85 PathProgramCache]: Analyzing trace with hash -928579091, now seen corresponding path program 1 times [2022-10-16 12:02:20,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:20,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941713900] [2022-10-16 12:02:20,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:20,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:20,831 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 12:02:20,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:20,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941713900] [2022-10-16 12:02:20,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941713900] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:20,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:20,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:02:20,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218593625] [2022-10-16 12:02:20,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:20,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 12:02:20,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:20,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 12:02:20,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 12:02:20,883 INFO L87 Difference]: Start difference. First operand has 112 states, 82 states have (on average 1.8414634146341464) internal successors, (151), 108 states have internal predecessors, (151), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 12:02:20,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:20,927 INFO L93 Difference]: Finished difference Result 221 states and 308 transitions. [2022-10-16 12:02:20,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 12:02:20,930 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 18 [2022-10-16 12:02:20,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:20,945 INFO L225 Difference]: With dead ends: 221 [2022-10-16 12:02:20,946 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 12:02:20,952 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 12:02:20,956 INFO L413 NwaCegarLoop]: 135 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, 135 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 12:02:20,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:20,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 12:02:21,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-10-16 12:02:21,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 63 states have (on average 1.619047619047619) internal successors, (102), 89 states have internal predecessors, (102), 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 12:02:21,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2022-10-16 12:02:21,006 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 18 [2022-10-16 12:02:21,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:21,007 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2022-10-16 12:02:21,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 12:02:21,008 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2022-10-16 12:02:21,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 12:02:21,009 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:21,009 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] [2022-10-16 12:02:21,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:02:21,010 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 12:02:21,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:21,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1997304589, now seen corresponding path program 1 times [2022-10-16 12:02:21,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:21,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786884558] [2022-10-16 12:02:21,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:21,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:21,256 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 12:02:21,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:21,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786884558] [2022-10-16 12:02:21,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786884558] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:21,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:21,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:21,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324099205] [2022-10-16 12:02:21,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:21,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:02:21,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:21,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:02:21,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:02:21,261 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 12:02:21,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:21,302 INFO L93 Difference]: Finished difference Result 173 states and 197 transitions. [2022-10-16 12:02:21,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:02:21,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 20 [2022-10-16 12:02:21,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:21,313 INFO L225 Difference]: With dead ends: 173 [2022-10-16 12:02:21,313 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 12:02:21,317 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 12:02:21,322 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 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 12:02:21,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:21,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 12:02:21,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-10-16 12:02:21,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 63 states have (on average 1.6031746031746033) internal successors, (101), 89 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 12:02:21,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2022-10-16 12:02:21,339 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 20 [2022-10-16 12:02:21,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:21,340 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2022-10-16 12:02:21,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 12:02:21,340 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2022-10-16 12:02:21,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 12:02:21,342 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:21,343 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 12:02:21,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:02:21,343 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 12:02:21,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:21,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2058843443, now seen corresponding path program 1 times [2022-10-16 12:02:21,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:21,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34468012] [2022-10-16 12:02:21,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:21,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:21,494 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 12:02:21,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:21,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34468012] [2022-10-16 12:02:21,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34468012] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:21,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:21,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:21,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3956335] [2022-10-16 12:02:21,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:21,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:02:21,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:21,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:02:21,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:02:21,499 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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 12:02:21,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:21,526 INFO L93 Difference]: Finished difference Result 172 states and 195 transitions. [2022-10-16 12:02:21,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:02:21,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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 12:02:21,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:21,529 INFO L225 Difference]: With dead ends: 172 [2022-10-16 12:02:21,529 INFO L226 Difference]: Without dead ends: 95 [2022-10-16 12:02:21,530 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 12:02:21,532 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 1 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:21,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 198 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:21,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-10-16 12:02:21,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-10-16 12:02:21,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 67 states have (on average 1.5671641791044777) internal successors, (105), 93 states have internal predecessors, (105), 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 12:02:21,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2022-10-16 12:02:21,553 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 23 [2022-10-16 12:02:21,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:21,553 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2022-10-16 12:02:21,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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 12:02:21,559 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2022-10-16 12:02:21,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 12:02:21,560 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:21,560 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 12:02:21,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:02:21,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:21,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:21,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1227021707, now seen corresponding path program 1 times [2022-10-16 12:02:21,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:21,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955603365] [2022-10-16 12:02:21,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:21,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:21,798 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 12:02:21,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:21,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955603365] [2022-10-16 12:02:21,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955603365] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:21,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:21,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:21,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074645121] [2022-10-16 12:02:21,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:21,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:02:21,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:21,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:02:21,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:02:21,802 INFO L87 Difference]: Start difference. First operand 95 states and 107 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 12:02:21,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:21,985 INFO L93 Difference]: Finished difference Result 215 states and 243 transitions. [2022-10-16 12:02:21,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:02:21,987 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 12:02:21,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:21,990 INFO L225 Difference]: With dead ends: 215 [2022-10-16 12:02:21,990 INFO L226 Difference]: Without dead ends: 152 [2022-10-16 12:02:21,991 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 12:02:21,996 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 74 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:21,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 238 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:22,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-10-16 12:02:22,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 124. [2022-10-16 12:02:22,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 96 states have (on average 1.6041666666666667) internal successors, (154), 122 states have internal predecessors, (154), 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 12:02:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 156 transitions. [2022-10-16 12:02:22,029 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 156 transitions. Word has length 23 [2022-10-16 12:02:22,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:22,030 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 156 transitions. [2022-10-16 12:02:22,030 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 12:02:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 156 transitions. [2022-10-16 12:02:22,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 12:02:22,031 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:22,036 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 12:02:22,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:02:22,037 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __ieee754_sqrtfErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:22,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:22,037 INFO L85 PathProgramCache]: Analyzing trace with hash 617032970, now seen corresponding path program 1 times [2022-10-16 12:02:22,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:22,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054851722] [2022-10-16 12:02:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:22,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:22,209 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 12:02:22,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:22,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054851722] [2022-10-16 12:02:22,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054851722] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:22,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:22,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:02:22,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237792224] [2022-10-16 12:02:22,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:22,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:02:22,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:22,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:02:22,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:02:22,213 INFO L87 Difference]: Start difference. First operand 124 states and 156 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 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 12:02:22,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:22,254 INFO L93 Difference]: Finished difference Result 145 states and 165 transitions. [2022-10-16 12:02:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:02:22,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 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 12:02:22,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:22,258 INFO L225 Difference]: With dead ends: 145 [2022-10-16 12:02:22,258 INFO L226 Difference]: Without dead ends: 141 [2022-10-16 12:02:22,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:02:22,260 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 55 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:22,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 160 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:22,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-10-16 12:02:22,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 125. [2022-10-16 12:02:22,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 97 states have (on average 1.597938144329897) internal successors, (155), 123 states have internal predecessors, (155), 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 12:02:22,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 157 transitions. [2022-10-16 12:02:22,273 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 157 transitions. Word has length 24 [2022-10-16 12:02:22,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:22,274 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 157 transitions. [2022-10-16 12:02:22,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 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 12:02:22,274 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 157 transitions. [2022-10-16 12:02:22,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 12:02:22,275 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:22,276 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 12:02:22,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:02:22,276 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:22,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:22,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1947326908, now seen corresponding path program 1 times [2022-10-16 12:02:22,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:22,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681624949] [2022-10-16 12:02:22,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:22,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:22,382 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 12:02:22,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:22,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681624949] [2022-10-16 12:02:22,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681624949] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:22,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:22,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:22,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934841042] [2022-10-16 12:02:22,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:22,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:02:22,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:22,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:02:22,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:02:22,390 INFO L87 Difference]: Start difference. First operand 125 states and 157 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 12:02:22,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:22,444 INFO L93 Difference]: Finished difference Result 214 states and 272 transitions. [2022-10-16 12:02:22,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:02:22,444 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 12:02:22,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:22,446 INFO L225 Difference]: With dead ends: 214 [2022-10-16 12:02:22,447 INFO L226 Difference]: Without dead ends: 210 [2022-10-16 12:02:22,447 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 12:02:22,449 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 67 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 389 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 12:02:22,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 389 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:22,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-10-16 12:02:22,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 135. [2022-10-16 12:02:22,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 107 states have (on average 1.5514018691588785) internal successors, (166), 133 states have internal predecessors, (166), 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 12:02:22,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 168 transitions. [2022-10-16 12:02:22,463 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 168 transitions. Word has length 25 [2022-10-16 12:02:22,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:22,464 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 168 transitions. [2022-10-16 12:02:22,464 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 12:02:22,465 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 168 transitions. [2022-10-16 12:02:22,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 12:02:22,466 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:22,466 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] [2022-10-16 12:02:22,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:02:22,467 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:22,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:22,467 INFO L85 PathProgramCache]: Analyzing trace with hash 622353113, now seen corresponding path program 1 times [2022-10-16 12:02:22,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:22,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248942966] [2022-10-16 12:02:22,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:22,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:22,530 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 12:02:22,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:22,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248942966] [2022-10-16 12:02:22,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248942966] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:22,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:22,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:22,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396095862] [2022-10-16 12:02:22,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:22,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:02:22,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:22,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:02:22,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:02:22,534 INFO L87 Difference]: Start difference. First operand 135 states and 168 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 12:02:22,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:22,588 INFO L93 Difference]: Finished difference Result 232 states and 292 transitions. [2022-10-16 12:02:22,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:02:22,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 26 [2022-10-16 12:02:22,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:22,591 INFO L225 Difference]: With dead ends: 232 [2022-10-16 12:02:22,591 INFO L226 Difference]: Without dead ends: 135 [2022-10-16 12:02:22,592 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 12:02:22,593 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 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 12:02:22,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:22,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-10-16 12:02:22,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2022-10-16 12:02:22,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 133 states have internal predecessors, (165), 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 12:02:22,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 167 transitions. [2022-10-16 12:02:22,604 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 167 transitions. Word has length 26 [2022-10-16 12:02:22,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:22,604 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 167 transitions. [2022-10-16 12:02:22,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 12:02:22,605 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 167 transitions. [2022-10-16 12:02:22,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 12:02:22,606 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:22,606 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] [2022-10-16 12:02:22,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:02:22,607 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:22,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:22,608 INFO L85 PathProgramCache]: Analyzing trace with hash 565094811, now seen corresponding path program 1 times [2022-10-16 12:02:22,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:22,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416842884] [2022-10-16 12:02:22,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:22,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:22,737 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 12:02:22,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:22,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416842884] [2022-10-16 12:02:22,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416842884] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:22,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:22,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:02:22,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359182920] [2022-10-16 12:02:22,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:22,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:02:22,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:22,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:02:22,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:02:22,741 INFO L87 Difference]: Start difference. First operand 135 states and 167 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 12:02:22,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:22,868 INFO L93 Difference]: Finished difference Result 205 states and 247 transitions. [2022-10-16 12:02:22,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:02:22,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 26 [2022-10-16 12:02:22,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:22,871 INFO L225 Difference]: With dead ends: 205 [2022-10-16 12:02:22,871 INFO L226 Difference]: Without dead ends: 204 [2022-10-16 12:02:22,871 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 12:02:22,873 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 121 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:22,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 176 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:22,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-10-16 12:02:22,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 135. [2022-10-16 12:02:22,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 107 states have (on average 1.5327102803738317) internal successors, (164), 133 states have internal predecessors, (164), 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 12:02:22,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 166 transitions. [2022-10-16 12:02:22,882 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 166 transitions. Word has length 26 [2022-10-16 12:02:22,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:22,883 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 166 transitions. [2022-10-16 12:02:22,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 12:02:22,883 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 166 transitions. [2022-10-16 12:02:22,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 12:02:22,885 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:22,885 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, 1] [2022-10-16 12:02:22,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 12:02:22,886 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:22,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:22,886 INFO L85 PathProgramCache]: Analyzing trace with hash 3592184, now seen corresponding path program 1 times [2022-10-16 12:02:22,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:22,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877561783] [2022-10-16 12:02:22,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:22,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:23,039 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 12:02:23,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:23,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877561783] [2022-10-16 12:02:23,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877561783] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:02:23,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275396955] [2022-10-16 12:02:23,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:23,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:02:23,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:02:23,049 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 12:02:23,070 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 12:02:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:23,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 12:02:23,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:02:23,239 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 12:02:23,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:02:23,291 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 12:02:23,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275396955] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:02:23,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:02:23,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 12:02:23,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661216514] [2022-10-16 12:02:23,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:02:23,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 12:02:23,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:23,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 12:02:23,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:02:23,294 INFO L87 Difference]: Start difference. First operand 135 states and 166 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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 12:02:23,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:23,485 INFO L93 Difference]: Finished difference Result 470 states and 609 transitions. [2022-10-16 12:02:23,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 12:02:23,485 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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 12:02:23,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:23,489 INFO L225 Difference]: With dead ends: 470 [2022-10-16 12:02:23,489 INFO L226 Difference]: Without dead ends: 468 [2022-10-16 12:02:23,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 51 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 12:02:23,491 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 340 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:23,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1074 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:23,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-10-16 12:02:23,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 158. [2022-10-16 12:02:23,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 130 states have (on average 1.4923076923076923) internal successors, (194), 156 states have internal predecessors, (194), 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 12:02:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 196 transitions. [2022-10-16 12:02:23,505 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 196 transitions. Word has length 29 [2022-10-16 12:02:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:23,506 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 196 transitions. [2022-10-16 12:02:23,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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 12:02:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 196 transitions. [2022-10-16 12:02:23,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 12:02:23,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:23,508 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 12:02:23,546 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 12:02:23,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:02:23,722 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __ieee754_sqrtfErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:23,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:23,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1557727274, now seen corresponding path program 1 times [2022-10-16 12:02:23,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:23,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038034917] [2022-10-16 12:02:23,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:23,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:23,976 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 12:02:23,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:23,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038034917] [2022-10-16 12:02:23,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038034917] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:23,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:23,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:02:23,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819218038] [2022-10-16 12:02:23,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:23,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:02:23,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:23,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:02:23,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:02:23,979 INFO L87 Difference]: Start difference. First operand 158 states and 196 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 12:02:24,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:24,170 INFO L93 Difference]: Finished difference Result 182 states and 224 transitions. [2022-10-16 12:02:24,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:02:24,171 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 12:02:24,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:24,173 INFO L225 Difference]: With dead ends: 182 [2022-10-16 12:02:24,173 INFO L226 Difference]: Without dead ends: 181 [2022-10-16 12:02:24,174 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 12:02:24,175 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 40 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:24,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 246 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:02:24,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-10-16 12:02:24,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 159. [2022-10-16 12:02:24,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 131 states have (on average 1.4885496183206106) internal successors, (195), 157 states have internal predecessors, (195), 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 12:02:24,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 197 transitions. [2022-10-16 12:02:24,190 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 197 transitions. Word has length 29 [2022-10-16 12:02:24,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:24,192 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 197 transitions. [2022-10-16 12:02:24,192 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 12:02:24,192 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 197 transitions. [2022-10-16 12:02:24,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 12:02:24,202 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:24,202 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, 1] [2022-10-16 12:02:24,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 12:02:24,202 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:24,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:24,203 INFO L85 PathProgramCache]: Analyzing trace with hash 111357909, now seen corresponding path program 1 times [2022-10-16 12:02:24,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:24,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656081518] [2022-10-16 12:02:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:24,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:24,353 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 12:02:24,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:24,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656081518] [2022-10-16 12:02:24,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656081518] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:02:24,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723125949] [2022-10-16 12:02:24,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:24,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:02:24,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:02:24,357 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 12:02:24,377 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 12:02:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:24,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 12:02:24,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:02:24,507 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 12:02:24,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:02:24,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723125949] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:24,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:02:24,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 12:02:24,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551367487] [2022-10-16 12:02:24,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:24,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:02:24,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:24,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:02:24,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:02:24,510 INFO L87 Difference]: Start difference. First operand 159 states and 197 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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 12:02:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:24,572 INFO L93 Difference]: Finished difference Result 299 states and 383 transitions. [2022-10-16 12:02:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:02:24,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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 12:02:24,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:24,575 INFO L225 Difference]: With dead ends: 299 [2022-10-16 12:02:24,575 INFO L226 Difference]: Without dead ends: 297 [2022-10-16 12:02:24,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 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 12:02:24,576 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 138 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:24,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 548 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:02:24,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-10-16 12:02:24,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 157. [2022-10-16 12:02:24,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 131 states have (on average 1.4351145038167938) internal successors, (188), 155 states have internal predecessors, (188), 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 12:02:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 190 transitions. [2022-10-16 12:02:24,587 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 190 transitions. Word has length 30 [2022-10-16 12:02:24,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:24,587 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 190 transitions. [2022-10-16 12:02:24,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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 12:02:24,588 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 190 transitions. [2022-10-16 12:02:24,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 12:02:24,588 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:24,589 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 12:02:24,633 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 12:02:24,803 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,SelfDestructingSolverStorable10 [2022-10-16 12:02:24,804 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __ieee754_sqrtfErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:24,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:24,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1044905022, now seen corresponding path program 1 times [2022-10-16 12:02:24,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:24,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949586546] [2022-10-16 12:02:24,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:24,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:25,058 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 12:02:25,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:25,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949586546] [2022-10-16 12:02:25,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949586546] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:25,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:25,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:02:25,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869931470] [2022-10-16 12:02:25,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:25,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:02:25,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:25,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:02:25,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:02:25,061 INFO L87 Difference]: Start difference. First operand 157 states and 190 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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 12:02:25,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:25,242 INFO L93 Difference]: Finished difference Result 213 states and 272 transitions. [2022-10-16 12:02:25,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:02:25,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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 12:02:25,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:25,247 INFO L225 Difference]: With dead ends: 213 [2022-10-16 12:02:25,247 INFO L226 Difference]: Without dead ends: 208 [2022-10-16 12:02:25,248 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 12:02:25,249 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 74 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:25,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 216 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:02:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-10-16 12:02:25,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 176. [2022-10-16 12:02:25,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 150 states have (on average 1.4533333333333334) internal successors, (218), 174 states have internal predecessors, (218), 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 12:02:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 220 transitions. [2022-10-16 12:02:25,263 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 220 transitions. Word has length 30 [2022-10-16 12:02:25,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:25,263 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 220 transitions. [2022-10-16 12:02:25,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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 12:02:25,264 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 220 transitions. [2022-10-16 12:02:25,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 12:02:25,265 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:25,265 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] [2022-10-16 12:02:25,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 12:02:25,267 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:25,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:25,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1967682907, now seen corresponding path program 1 times [2022-10-16 12:02:25,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:25,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436121931] [2022-10-16 12:02:25,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:25,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:25,464 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 12:02:25,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:25,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436121931] [2022-10-16 12:02:25,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436121931] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:25,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:02:25,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:02:25,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214310349] [2022-10-16 12:02:25,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:25,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:02:25,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:25,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:02:25,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:02:25,467 INFO L87 Difference]: Start difference. First operand 176 states and 220 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 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 12:02:25,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:25,640 INFO L93 Difference]: Finished difference Result 243 states and 300 transitions. [2022-10-16 12:02:25,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:02:25,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 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 31 [2022-10-16 12:02:25,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:25,642 INFO L225 Difference]: With dead ends: 243 [2022-10-16 12:02:25,642 INFO L226 Difference]: Without dead ends: 242 [2022-10-16 12:02:25,643 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 12:02:25,644 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 112 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:25,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 254 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:02:25,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-10-16 12:02:25,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 175. [2022-10-16 12:02:25,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 149 states have (on average 1.4496644295302012) internal successors, (216), 173 states have internal predecessors, (216), 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 12:02:25,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 218 transitions. [2022-10-16 12:02:25,654 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 218 transitions. Word has length 31 [2022-10-16 12:02:25,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:25,655 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 218 transitions. [2022-10-16 12:02:25,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 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 12:02:25,655 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 218 transitions. [2022-10-16 12:02:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 12:02:25,656 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:25,656 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, 1] [2022-10-16 12:02:25,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 12:02:25,657 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __ieee754_sqrtfErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:25,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:25,657 INFO L85 PathProgramCache]: Analyzing trace with hash 684174362, now seen corresponding path program 1 times [2022-10-16 12:02:25,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:25,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097250172] [2022-10-16 12:02:25,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:25,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:25,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:25,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:02:25,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097250172] [2022-10-16 12:02:25,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097250172] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:02:25,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320981287] [2022-10-16 12:02:25,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:25,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:02:25,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:02:25,854 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:02:25,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 12:02:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:02:25,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 12:02:25,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:02:26,008 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2022-10-16 12:02:26,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-10-16 12:02:26,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:02:26,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:02:26,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320981287] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:02:26,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:02:26,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2022-10-16 12:02:26,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539260771] [2022-10-16 12:02:26,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:02:26,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:02:26,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:02:26,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:02:26,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:02:26,174 INFO L87 Difference]: Start difference. First operand 175 states and 218 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 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 12:02:26,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:02:26,489 INFO L93 Difference]: Finished difference Result 330 states and 421 transitions. [2022-10-16 12:02:26,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 12:02:26,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 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 33 [2022-10-16 12:02:26,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:02:26,492 INFO L225 Difference]: With dead ends: 330 [2022-10-16 12:02:26,492 INFO L226 Difference]: Without dead ends: 327 [2022-10-16 12:02:26,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-10-16 12:02:26,493 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 193 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:02:26,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 344 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:02:26,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-10-16 12:02:26,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 211. [2022-10-16 12:02:26,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 187 states have (on average 1.4919786096256684) internal successors, (279), 209 states have internal predecessors, (279), 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 12:02:26,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 281 transitions. [2022-10-16 12:02:26,507 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 281 transitions. Word has length 33 [2022-10-16 12:02:26,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:02:26,508 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 281 transitions. [2022-10-16 12:02:26,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 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 12:02:26,508 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 281 transitions. [2022-10-16 12:02:26,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 12:02:26,509 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:02:26,509 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, 1] [2022-10-16 12:02:26,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 12:02:26,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:02:26,725 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __ieee754_sqrtfErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [__ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 12:02:26,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:02:26,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1902717326, now seen corresponding path program 1 times [2022-10-16 12:02:26,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:02:26,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604748022] [2022-10-16 12:02:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:02:26,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:02:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 12:02:26,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 12:02:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 12:02:26,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 12:02:26,812 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 12:02:26,814 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __ieee754_sqrtfErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2022-10-16 12:02:26,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2022-10-16 12:02:26,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2022-10-16 12:02:26,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2022-10-16 12:02:26,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2022-10-16 12:02:26,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2022-10-16 12:02:26,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2022-10-16 12:02:26,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2022-10-16 12:02:26,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2022-10-16 12:02:26,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2022-10-16 12:02:26,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2022-10-16 12:02:26,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2022-10-16 12:02:26,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2022-10-16 12:02:26,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 26 remaining) [2022-10-16 12:02:26,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2022-10-16 12:02:26,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2022-10-16 12:02:26,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2022-10-16 12:02:26,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2022-10-16 12:02:26,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2022-10-16 12:02:26,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2022-10-16 12:02:26,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2022-10-16 12:02:26,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2022-10-16 12:02:26,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2022-10-16 12:02:26,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2022-10-16 12:02:26,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2022-10-16 12:02:26,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2022-10-16 12:02:26,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 12:02:26,826 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:02:26,831 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 12:02:26,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:02:26 BoogieIcfgContainer [2022-10-16 12:02:26,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 12:02:26,892 INFO L158 Benchmark]: Toolchain (without parser) took 8268.47ms. Allocated memory was 156.2MB in the beginning and 207.6MB in the end (delta: 51.4MB). Free memory was 131.4MB in the beginning and 138.5MB in the end (delta: -7.1MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,892 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 156.2MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 12:02:26,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.91ms. Allocated memory is still 156.2MB. Free memory was 131.2MB in the beginning and 118.0MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.66ms. Allocated memory is still 156.2MB. Free memory was 117.8MB in the beginning and 115.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,894 INFO L158 Benchmark]: Boogie Preprocessor took 105.54ms. Allocated memory is still 156.2MB. Free memory was 115.9MB in the beginning and 113.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,894 INFO L158 Benchmark]: RCFGBuilder took 1016.59ms. Allocated memory is still 156.2MB. Free memory was 113.6MB in the beginning and 125.5MB in the end (delta: -11.9MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,894 INFO L158 Benchmark]: TraceAbstraction took 6524.46ms. Allocated memory was 156.2MB in the beginning and 207.6MB in the end (delta: 51.4MB). Free memory was 124.6MB in the beginning and 138.5MB in the end (delta: -13.9MB). Peak memory consumption was 38.0MB. Max. memory is 8.0GB. [2022-10-16 12:02:26,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 156.2MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 495.91ms. Allocated memory is still 156.2MB. Free memory was 131.2MB in the beginning and 118.0MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 99.66ms. Allocated memory is still 156.2MB. Free memory was 117.8MB in the beginning and 115.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 105.54ms. Allocated memory is still 156.2MB. Free memory was 115.9MB in the beginning and 113.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1016.59ms. Allocated memory is still 156.2MB. Free memory was 113.6MB in the beginning and 125.5MB in the end (delta: -11.9MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * TraceAbstraction took 6524.46ms. Allocated memory was 156.2MB in the beginning and 207.6MB in the end (delta: 51.4MB). Free memory was 124.6MB in the beginning and 138.5MB in the end (delta: -13.9MB). Peak memory consumption was 38.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of someBinaryFLOATComparisonOperation at line 173, overapproximation of someUnaryDOUBLEoperation at line 89, overapproximation of bitwiseAnd at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 138. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L86-L93] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [one_acos=1, one_sqrt=1, pi=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] [L171] float x = __VERIFIER_nondet_float(); [L173] COND TRUE x < -1.0f || x > 1.0f [L175] CALL __ieee754_acosf(x) [L96] float z, p, q, r, w, s, c, df; [L97] __int32_t hx, ix; VAL [\old(x)=6442450957, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L99] ieee_float_shape_type gf_u; [L100] gf_u.value = (x) [L101] EXPR gf_u.word [L101] (hx) = gf_u.word [L103] ix = hx & 0x7fffffff VAL [\old(x)=6442450957, hx=2147483647, ix=1056964608, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=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=6442450957] [L104] COND FALSE !(ix == 0x3f800000) VAL [\old(x)=6442450957, hx=2147483647, ix=1056964608, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L109] COND FALSE !(ix > 0x3f800000) VAL [\old(x)=6442450957, hx=2147483647, ix=1056964608, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L112] COND FALSE !(ix < 0x3f000000) VAL [\old(x)=6442450957, hx=2147483647, ix=1056964608, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L124] COND FALSE !(hx < 0) [L137] __int32_t idf; [L138] z = (one_acos - x) * (float)0.5 VAL [\old(x)=6442450957, hx=2147483647, ix=1056964608, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L139] CALL __ieee754_sqrtf(z) VAL [\old(hx = ix & 0x7fffffff)=6442450944, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450945, \old(x)=6442450956, hx = ix & 0x7fffffff=6442450944, ix = (ix & 0x007fffffL) | 0x00800000L=6442450945, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [\old(hx = ix & 0x7fffffff)=6442450944, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450945, \old(x)=6442450956, hx = ix & 0x7fffffff=6442450944, ix = (ix & 0x007fffffL) | 0x00800000L=6442450945, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [\old(hx = ix & 0x7fffffff)=6442450944, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450945, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450945, 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=6442450956] [L31] COND FALSE !(!((hx) < 0x7f800000L)) VAL [\old(hx = ix & 0x7fffffff)=6442450944, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450945, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450945, 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] [L34] COND FALSE !(((hx) == 0)) VAL [\old(hx = ix & 0x7fffffff)=6442450944, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450945, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450945, ix = hx & 0x7fffffff=2147483647, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L36] COND FALSE !(ix < 0) [L39] m = (ix >> 23) VAL [\old(hx = ix & 0x7fffffff)=6442450944, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450945, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450945, 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] [L40] COND FALSE !(((hx) < 0x00800000L)) VAL [\old(hx = ix & 0x7fffffff)=6442450944, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450945, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450945, ix = hx & 0x7fffffff=2147483647, m=255, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L45] m -= 127 VAL [\old(hx = ix & 0x7fffffff)=6442450944, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450945, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=6442450945, 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] [L46] ix = (ix & 0x007fffffL) | 0x00800000L VAL [\old(hx = ix & 0x7fffffff)=6442450944, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450945, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=8388608, ix = hx & 0x7fffffff=2147483647, m=128, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450956] [L47] COND TRUE m & 1 VAL [\old(hx = ix & 0x7fffffff)=6442450944, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450945, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=8388608, ix = hx & 0x7fffffff=2147483647, m=128, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, 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] [L48] ix += ix VAL [\old(hx = ix & 0x7fffffff)=6442450944, \old(ix = (ix & 0x007fffffL) | 0x00800000L)=6442450945, \old(x)=6442450956, hx=8388608, hx = ix & 0x7fffffff=2147483647, ix=2147483647, ix = (ix & 0x007fffffL) | 0x00800000L=8388608, ix = hx & 0x7fffffff=2147483647, m=128, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, 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] - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 112 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1215 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1215 mSDsluCounter, 4350 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2852 mSDsCounter, 167 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1138 IncrementalHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 167 mSolverCounterUnsat, 1498 mSDtfsCounter, 1138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=14, InterpolantAutomatonStates: 81, 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, 14 MinimizatonAttempts, 875 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 470 ConstructedInterpolants, 0 QuantifiedInterpolants, 956 SizeOfPredicates, 7 NumberOfNonLiveVariables, 472 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 5/19 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 12:02:26,952 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...