/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:47:25,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:47:25,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:47:25,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:47:25,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:47:25,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:47:25,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:47:25,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:47:25,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:47:25,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:47:25,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:47:25,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:47:25,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:47:25,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:47:25,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:47:25,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:47:25,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:47:25,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:47:25,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:47:25,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:47:25,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:47:25,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:47:25,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:47:25,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:47:25,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 04:47:25,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:47:25,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:47:25,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:47:25,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:47:25,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:47:25,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:47:25,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:47:25,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:47:25,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:47:25,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:47:25,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:47:25,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 04:47:25,287 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:47:25,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:47:25,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:47:25,287 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:47:25,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:47:25,288 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:47:25,289 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:47:25,289 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:47:25,289 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:47:25,289 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:47:25,290 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:47:25,290 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:47:25,290 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:47:25,290 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:47:25,290 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:47:25,290 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:47:25,290 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:47:25,290 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:47:25,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:47:25,291 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:47:25,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:47:25,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:47:25,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:47:25,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:47:25,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:47:25,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:47:25,292 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:47:25,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:47:25,292 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:47:25,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:47:25,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:47:25,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:47:25,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:47:25,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:47:25,293 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:47:25,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:47:25,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:47:25,294 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:47:25,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:47:25,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:47:25,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:47:25,294 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:47:25,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:47:25,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:47:25,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:47:25,522 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:47:25,522 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:47:25,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2023-04-01 04:47:26,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:47:26,985 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:47:26,985 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2023-04-01 04:47:26,991 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a89254a2/298f83bffbf14c418c22b84b1c3091fb/FLAG406e9a32d [2023-04-01 04:47:27,008 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a89254a2/298f83bffbf14c418c22b84b1c3091fb [2023-04-01 04:47:27,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:47:27,011 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:47:27,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:47:27,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:47:27,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:47:27,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:47:27" (1/1) ... [2023-04-01 04:47:27,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df4e9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27, skipping insertion in model container [2023-04-01 04:47:27,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:47:27" (1/1) ... [2023-04-01 04:47:27,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:47:27,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:47:27,173 WARN L247 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_1072d.c[1573,1586] [2023-04-01 04:47:27,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:47:27,185 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:47:27,204 WARN L247 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_1072d.c[1573,1586] [2023-04-01 04:47:27,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:47:27,216 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:47:27,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27 WrapperNode [2023-04-01 04:47:27,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:47:27,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:47:27,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:47:27,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:47:27,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27" (1/1) ... [2023-04-01 04:47:27,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27" (1/1) ... [2023-04-01 04:47:27,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27" (1/1) ... [2023-04-01 04:47:27,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27" (1/1) ... [2023-04-01 04:47:27,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27" (1/1) ... [2023-04-01 04:47:27,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27" (1/1) ... [2023-04-01 04:47:27,250 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27" (1/1) ... [2023-04-01 04:47:27,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27" (1/1) ... [2023-04-01 04:47:27,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:47:27,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:47:27,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:47:27,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:47:27,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27" (1/1) ... [2023-04-01 04:47:27,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:47:27,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:47:27,297 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) [2023-04-01 04:47:27,302 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 [2023-04-01 04:47:27,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:47:27,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:47:27,332 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:47:27,332 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2023-04-01 04:47:27,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2023-04-01 04:47:27,332 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:47:27,332 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:47:27,332 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:47:27,332 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:47:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:47:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2023-04-01 04:47:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 04:47:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 04:47:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:47:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:47:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:47:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 04:47:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2023-04-01 04:47:27,334 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:47:27,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:47:27,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:47:27,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:47:27,399 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:47:27,401 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:47:27,810 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:47:27,987 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:47:27,987 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-04-01 04:47:27,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:47:27 BoogieIcfgContainer [2023-04-01 04:47:27,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:47:27,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:47:27,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:47:27,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:47:27,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:47:27" (1/3) ... [2023-04-01 04:47:27,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361fa739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:47:27, skipping insertion in model container [2023-04-01 04:47:27,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:27" (2/3) ... [2023-04-01 04:47:27,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361fa739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:47:27, skipping insertion in model container [2023-04-01 04:47:27,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:47:27" (3/3) ... [2023-04-01 04:47:28,000 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2023-04-01 04:47:28,015 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:47:28,015 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 04:47:28,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:47:28,074 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;@7a187af7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:47:28,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 04:47:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 27 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-01 04:47:28,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-01 04:47:28,084 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:47:28,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:47:28,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:47:28,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:47:28,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1611762107, now seen corresponding path program 1 times [2023-04-01 04:47:28,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:47:28,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778885452] [2023-04-01 04:47:28,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:47:28,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:47:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:47:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:47:28,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:47:28,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778885452] [2023-04-01 04:47:28,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778885452] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:47:28,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:47:28,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 04:47:28,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647703805] [2023-04-01 04:47:28,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:47:28,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 04:47:28,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:47:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 04:47:28,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 04:47:28,250 INFO L87 Difference]: Start difference. First operand has 36 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 27 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 04:47:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:47:28,292 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2023-04-01 04:47:28,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 04:47:28,296 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-04-01 04:47:28,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:47:28,301 INFO L225 Difference]: With dead ends: 65 [2023-04-01 04:47:28,302 INFO L226 Difference]: Without dead ends: 32 [2023-04-01 04:47:28,304 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 [2023-04-01 04:47:28,307 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 04:47:28,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 04:47:28,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-04-01 04:47:28,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-04-01 04:47:28,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 04:47:28,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2023-04-01 04:47:28,336 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 17 [2023-04-01 04:47:28,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:47:28,336 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2023-04-01 04:47:28,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 04:47:28,337 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2023-04-01 04:47:28,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-04-01 04:47:28,337 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:47:28,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:47:28,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:47:28,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:47:28,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:47:28,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1925631951, now seen corresponding path program 1 times [2023-04-01 04:47:28,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:47:28,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654060674] [2023-04-01 04:47:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:47:28,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:47:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:47:28,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:47:28,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:47:28,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654060674] [2023-04-01 04:47:28,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654060674] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:47:28,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:47:28,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 04:47:28,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514113546] [2023-04-01 04:47:28,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:47:28,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 04:47:28,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:47:28,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 04:47:28,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 04:47:28,826 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 04:47:28,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:47:28,864 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2023-04-01 04:47:28,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 04:47:28,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-04-01 04:47:28,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:47:28,866 INFO L225 Difference]: With dead ends: 46 [2023-04-01 04:47:28,866 INFO L226 Difference]: Without dead ends: 32 [2023-04-01 04:47:28,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 04:47:28,874 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 10 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 04:47:28,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 44 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 04:47:28,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-04-01 04:47:28,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-04-01 04:47:28,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 04:47:28,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2023-04-01 04:47:28,883 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 18 [2023-04-01 04:47:28,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:47:28,883 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2023-04-01 04:47:28,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 04:47:28,883 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-04-01 04:47:28,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-04-01 04:47:28,884 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:47:28,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:47:28,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 04:47:28,884 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:47:28,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:47:28,885 INFO L85 PathProgramCache]: Analyzing trace with hash 56275321, now seen corresponding path program 1 times [2023-04-01 04:47:28,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:47:28,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466516211] [2023-04-01 04:47:28,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:47:28,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:47:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:47:28,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 04:47:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:47:28,975 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 04:47:28,975 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 04:47:28,976 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 04:47:28,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 04:47:28,980 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-04-01 04:47:28,983 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 04:47:29,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 04:47:29 BoogieIcfgContainer [2023-04-01 04:47:29,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 04:47:29,010 INFO L158 Benchmark]: Toolchain (without parser) took 1998.86ms. Allocated memory is still 261.1MB. Free memory was 226.9MB in the beginning and 213.5MB in the end (delta: 13.5MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. [2023-04-01 04:47:29,010 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 169.9MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:47:29,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.48ms. Allocated memory is still 261.1MB. Free memory was 226.6MB in the beginning and 216.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-01 04:47:29,010 INFO L158 Benchmark]: Boogie Preprocessor took 35.83ms. Allocated memory is still 261.1MB. Free memory was 216.0MB in the beginning and 214.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 04:47:29,014 INFO L158 Benchmark]: RCFGBuilder took 720.55ms. Allocated memory is still 261.1MB. Free memory was 214.0MB in the beginning and 188.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-04-01 04:47:29,015 INFO L158 Benchmark]: TraceAbstraction took 1018.03ms. Allocated memory is still 261.1MB. Free memory was 188.1MB in the beginning and 213.5MB in the end (delta: -25.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:47:29,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 169.9MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 202.48ms. Allocated memory is still 261.1MB. Free memory was 226.6MB in the beginning and 216.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.83ms. Allocated memory is still 261.1MB. Free memory was 216.0MB in the beginning and 214.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 720.55ms. Allocated memory is still 261.1MB. Free memory was 214.0MB in the beginning and 188.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1018.03ms. Allocated memory is still 261.1MB. Free memory was 188.1MB in the beginning and 213.5MB in the end (delta: -25.3MB). There was no memory consumed. 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: 69]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of someUnaryFLOAToperation at line 64, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L64] float x = -0.0f; [L65] CALL, EXPR trunc_float(x) VAL [\old(x)=6434062345] [L15] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=6434062345, x=6434062345] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L21] signbit = w & 0x80000000 [L22] EXPR w & 0x7f800000 [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L23] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6434062345, exponent_less_127=128, signbit=0, w=2139095040, x=6434062345] [L39] COND FALSE !(exponent_less_127 == 255) VAL [\old(x)=6434062345, exponent_less_127=128, signbit=0, w=2139095040, x=6434062345] [L42] return x; VAL [\old(x)=6434062345, \result=6434062345, exponent_less_127=128, signbit=0, w=2139095040, x=6434062345] [L65] RET, EXPR trunc_float(x) VAL [trunc_float(x)=6434062345, x=6434062345] [L65] float res = trunc_float(x); [L68] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res == -0.0f && __signbit_float(res) == 1=0, res=6434062345, x=6434062345] [L68] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L69] reach_error() VAL [res=6434062345, x=6434062345] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 60 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-04-01 04:47:29,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...