/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/double_req_bl_1072a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 21:23:50,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 21:23:50,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 21:23:50,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 21:23:50,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 21:23:50,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 21:23:50,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 21:23:50,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 21:23:50,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 21:23:50,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 21:23:50,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 21:23:50,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 21:23:50,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 21:23:50,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 21:23:50,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 21:23:50,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 21:23:50,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 21:23:50,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 21:23:50,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 21:23:50,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 21:23:50,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 21:23:50,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 21:23:50,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 21:23:50,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 21:23:50,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 21:23:50,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 21:23:50,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 21:23:50,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 21:23:50,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 21:23:50,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 21:23:50,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 21:23:50,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 21:23:50,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 21:23:50,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 21:23:50,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 21:23:50,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 21:23:50,383 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 [2023-04-02 21:23:50,405 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 21:23:50,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 21:23:50,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 21:23:50,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 21:23:50,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 21:23:50,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 21:23:50,407 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 21:23:50,407 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 21:23:50,407 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 21:23:50,407 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 21:23:50,408 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 21:23:50,408 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 21:23:50,408 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 21:23:50,408 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 21:23:50,408 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 21:23:50,408 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 21:23:50,408 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 21:23:50,408 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 21:23:50,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 21:23:50,409 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 21:23:50,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 21:23:50,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 21:23:50,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 21:23:50,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 21:23:50,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 21:23:50,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 21:23:50,410 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 21:23:50,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 21:23:50,410 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 21:23:50,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 21:23:50,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 21:23:50,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 21:23:50,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:23:50,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 21:23:50,411 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 21:23:50,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 21:23:50,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 21:23:50,411 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 21:23:50,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 21:23:50,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 21:23:50,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 21:23:50,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 21:23:50,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 21:23:50,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 21:23:50,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 21:23:50,616 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 21:23:50,616 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 21:23:50,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1072a.c [2023-04-02 21:23:51,586 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 21:23:51,698 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 21:23:51,699 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1072a.c [2023-04-02 21:23:51,703 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d24cf9140/dffa9997f48a4bbbaa7e0c26cc82c2e1/FLAG0ba13b367 [2023-04-02 21:23:51,716 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d24cf9140/dffa9997f48a4bbbaa7e0c26cc82c2e1 [2023-04-02 21:23:51,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 21:23:51,720 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 21:23:51,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 21:23:51,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 21:23:51,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 21:23:51,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:23:51" (1/1) ... [2023-04-02 21:23:51,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c86e9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51, skipping insertion in model container [2023-04-02 21:23:51,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:23:51" (1/1) ... [2023-04-02 21:23:51,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 21:23:51,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 21:23:51,873 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/double_req_bl_1072a.c[2254,2267] [2023-04-02 21:23:51,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:23:51,881 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 21:23:51,899 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/double_req_bl_1072a.c[2254,2267] [2023-04-02 21:23:51,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:23:51,908 INFO L208 MainTranslator]: Completed translation [2023-04-02 21:23:51,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51 WrapperNode [2023-04-02 21:23:51,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 21:23:51,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 21:23:51,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 21:23:51,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 21:23:51,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51" (1/1) ... [2023-04-02 21:23:51,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51" (1/1) ... [2023-04-02 21:23:51,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51" (1/1) ... [2023-04-02 21:23:51,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51" (1/1) ... [2023-04-02 21:23:51,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51" (1/1) ... [2023-04-02 21:23:51,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51" (1/1) ... [2023-04-02 21:23:51,951 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51" (1/1) ... [2023-04-02 21:23:51,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51" (1/1) ... [2023-04-02 21:23:51,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 21:23:51,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 21:23:51,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 21:23:51,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 21:23:51,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51" (1/1) ... [2023-04-02 21:23:51,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:23:51,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 21:23:51,979 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) [2023-04-02 21:23:51,983 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 [2023-04-02 21:23:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 21:23:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 21:23:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 21:23:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2023-04-02 21:23:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2023-04-02 21:23:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2023-04-02 21:23:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 21:23:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-02 21:23:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2023-04-02 21:23:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 21:23:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 21:23:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 21:23:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 21:23:52,081 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 21:23:52,083 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 21:23:52,334 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 21:23:52,526 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 21:23:52,526 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 21:23:52,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:23:52 BoogieIcfgContainer [2023-04-02 21:23:52,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 21:23:52,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 21:23:52,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 21:23:52,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 21:23:52,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 09:23:51" (1/3) ... [2023-04-02 21:23:52,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58aa9536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:23:52, skipping insertion in model container [2023-04-02 21:23:52,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:23:51" (2/3) ... [2023-04-02 21:23:52,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58aa9536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:23:52, skipping insertion in model container [2023-04-02 21:23:52,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:23:52" (3/3) ... [2023-04-02 21:23:52,538 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072a.c [2023-04-02 21:23:52,550 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 21:23:52,550 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 21:23:52,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 21:23:52,595 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;@338948d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 21:23:52,595 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 21:23:52,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 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) [2023-04-02 21:23:52,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-04-02 21:23:52,604 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:23:52,605 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] [2023-04-02 21:23:52,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:23:52,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:23:52,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1744419007, now seen corresponding path program 1 times [2023-04-02 21:23:52,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:23:52,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755999942] [2023-04-02 21:23:52,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:23:52,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:23:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:23:52,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 21:23:52,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 21:23:52,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755999942] [2023-04-02 21:23:52,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755999942] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 21:23:52,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 21:23:52,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-02 21:23:52,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415914479] [2023-04-02 21:23:52,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 21:23:52,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-02 21:23:52,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 21:23:52,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-02 21:23:52,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-02 21:23:52,796 INFO L87 Difference]: Start difference. First operand has 38 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 21:23:52,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 21:23:52,843 INFO L93 Difference]: Finished difference Result 69 states and 98 transitions. [2023-04-02 21:23:52,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-02 21:23:52,846 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2023-04-02 21:23:52,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 21:23:52,850 INFO L225 Difference]: With dead ends: 69 [2023-04-02 21:23:52,850 INFO L226 Difference]: Without dead ends: 34 [2023-04-02 21:23:52,852 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 [2023-04-02 21:23:52,854 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 21:23:52,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 21:23:52,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-04-02 21:23:52,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-04-02 21:23:52,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 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) [2023-04-02 21:23:52,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2023-04-02 21:23:52,881 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 23 [2023-04-02 21:23:52,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 21:23:52,882 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2023-04-02 21:23:52,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 21:23:52,883 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2023-04-02 21:23:52,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-04-02 21:23:52,884 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:23:52,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 21:23:52,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 21:23:52,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:23:52,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:23:52,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1732629387, now seen corresponding path program 1 times [2023-04-02 21:23:52,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:23:52,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459938964] [2023-04-02 21:23:52,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:23:52,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:23:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:23:53,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 21:23:53,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 21:23:53,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459938964] [2023-04-02 21:23:53,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459938964] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 21:23:53,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 21:23:53,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 21:23:53,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545955562] [2023-04-02 21:23:53,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 21:23:53,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 21:23:53,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 21:23:53,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 21:23:53,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 21:23:53,560 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 21:23:53,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 21:23:53,605 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2023-04-02 21:23:53,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 21:23:53,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-04-02 21:23:53,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 21:23:53,606 INFO L225 Difference]: With dead ends: 34 [2023-04-02 21:23:53,607 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 21:23:53,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 21:23:53,610 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 21:23:53,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 21:23:53,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 21:23:53,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 21:23:53,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-02 21:23:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 21:23:53,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2023-04-02 21:23:53,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 21:23:53,611 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 21:23:53,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 21:23:53,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 21:23:53,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 21:23:53,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 21:23:53,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 21:23:53,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-02 21:23:53,627 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2023-04-02 21:23:53,627 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 3) no Hoare annotation was computed. [2023-04-02 21:23:53,628 INFO L899 garLoopResultBuilder]: For program point isnan_doubleEXIT(line 17) no Hoare annotation was computed. [2023-04-02 21:23:53,628 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 17) no Hoare annotation was computed. [2023-04-02 21:23:53,628 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 65 77) the Hoare annotation is: true [2023-04-02 21:23:53,628 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 67 72) no Hoare annotation was computed. [2023-04-02 21:23:53,628 INFO L902 garLoopResultBuilder]: At program point L67-2(lines 67 72) the Hoare annotation is: true [2023-04-02 21:23:53,628 INFO L899 garLoopResultBuilder]: For program point L67-3(lines 67 72) no Hoare annotation was computed. [2023-04-02 21:23:53,628 INFO L899 garLoopResultBuilder]: For program point isinf_doubleEXIT(lines 65 77) no Hoare annotation was computed. [2023-04-02 21:23:53,628 INFO L899 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2023-04-02 21:23:53,628 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 79 96) no Hoare annotation was computed. [2023-04-02 21:23:53,629 INFO L899 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2023-04-02 21:23:53,629 INFO L902 garLoopResultBuilder]: At program point L90(line 90) the Hoare annotation is: true [2023-04-02 21:23:53,629 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 79 96) the Hoare annotation is: true [2023-04-02 21:23:53,629 INFO L899 garLoopResultBuilder]: For program point L90-1(line 90) no Hoare annotation was computed. [2023-04-02 21:23:53,629 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 79 96) no Hoare annotation was computed. [2023-04-02 21:23:53,629 INFO L899 garLoopResultBuilder]: For program point L90-2(lines 90 93) no Hoare annotation was computed. [2023-04-02 21:23:53,629 INFO L902 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: true [2023-04-02 21:23:53,629 INFO L899 garLoopResultBuilder]: For program point L87-1(line 87) no Hoare annotation was computed. [2023-04-02 21:23:53,629 INFO L899 garLoopResultBuilder]: For program point trunc_doubleEXIT(lines 19 62) no Hoare annotation was computed. [2023-04-02 21:23:53,630 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 54 59) no Hoare annotation was computed. [2023-04-02 21:23:53,630 INFO L902 garLoopResultBuilder]: At program point L54-2(lines 54 59) the Hoare annotation is: true [2023-04-02 21:23:53,630 INFO L899 garLoopResultBuilder]: For program point L54-3(lines 32 60) no Hoare annotation was computed. [2023-04-02 21:23:53,630 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 19 62) the Hoare annotation is: true [2023-04-02 21:23:53,630 INFO L899 garLoopResultBuilder]: For program point trunc_doubleFINAL(lines 19 62) no Hoare annotation was computed. [2023-04-02 21:23:53,630 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 60) no Hoare annotation was computed. [2023-04-02 21:23:53,630 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2023-04-02 21:23:53,630 INFO L902 garLoopResultBuilder]: At program point L24-2(lines 24 29) the Hoare annotation is: true [2023-04-02 21:23:53,630 INFO L899 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2023-04-02 21:23:53,630 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 60) no Hoare annotation was computed. [2023-04-02 21:23:53,631 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 41 47) no Hoare annotation was computed. [2023-04-02 21:23:53,631 INFO L902 garLoopResultBuilder]: At program point L41-2(lines 41 47) the Hoare annotation is: true [2023-04-02 21:23:53,631 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 48) no Hoare annotation was computed. [2023-04-02 21:23:53,631 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 52) no Hoare annotation was computed. [2023-04-02 21:23:53,631 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 34 39) no Hoare annotation was computed. [2023-04-02 21:23:53,631 INFO L902 garLoopResultBuilder]: At program point L34-2(lines 34 39) the Hoare annotation is: true [2023-04-02 21:23:53,631 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-02 21:23:53,631 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-02 21:23:53,631 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-02 21:23:53,631 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-04-02 21:23:53,632 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-02 21:23:53,632 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-02 21:23:53,634 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-02 21:23:53,635 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 21:23:53,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 09:23:53 BoogieIcfgContainer [2023-04-02 21:23:53,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 21:23:53,641 INFO L158 Benchmark]: Toolchain (without parser) took 1920.32ms. Allocated memory was 182.5MB in the beginning and 261.1MB in the end (delta: 78.6MB). Free memory was 122.2MB in the beginning and 190.9MB in the end (delta: -68.8MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. [2023-04-02 21:23:53,641 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 21:23:53,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.34ms. Allocated memory is still 182.5MB. Free memory was 122.0MB in the beginning and 110.6MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-02 21:23:53,641 INFO L158 Benchmark]: Boogie Preprocessor took 44.52ms. Allocated memory is still 182.5MB. Free memory was 110.6MB in the beginning and 153.4MB in the end (delta: -42.8MB). Peak memory consumption was 6.7MB. Max. memory is 8.0GB. [2023-04-02 21:23:53,641 INFO L158 Benchmark]: RCFGBuilder took 573.91ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 108.3MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2023-04-02 21:23:53,642 INFO L158 Benchmark]: TraceAbstraction took 1110.97ms. Allocated memory was 182.5MB in the beginning and 261.1MB in the end (delta: 78.6MB). Free memory was 107.3MB in the beginning and 190.9MB in the end (delta: -83.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 21:23:53,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 187.34ms. Allocated memory is still 182.5MB. Free memory was 122.0MB in the beginning and 110.6MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.52ms. Allocated memory is still 182.5MB. Free memory was 110.6MB in the beginning and 153.4MB in the end (delta: -42.8MB). Peak memory consumption was 6.7MB. Max. memory is 8.0GB. * RCFGBuilder took 573.91ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 108.3MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1110.97ms. Allocated memory was 182.5MB in the beginning and 261.1MB in the end (delta: 78.6MB). Free memory was 107.3MB in the beginning and 190.9MB in the end (delta: -83.7MB). 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 - PositiveResult [Line: 91]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 121 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 65 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 6, 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: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 15 PreInvPairs, 21 NumberOfFragments, 13 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-04-02 21:23:53,658 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...