/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:02:13,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:02:13,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:02:13,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:02:13,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:02:13,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:02:13,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:02:13,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:02:13,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:02:13,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:02:13,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:02:13,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:02:13,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:02:13,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:02:13,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:02:13,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:02:13,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:02:13,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:02:13,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:02:13,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:02:13,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:02:13,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:02:13,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:02:13,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:02:13,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:02:13,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:02:13,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:02:13,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:02:13,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:02:13,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:02:13,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:02:13,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:02:13,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:02:13,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:02:13,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:02:13,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:02:13,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:02:13,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:02:13,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:02:13,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:02:13,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:02:13,457 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 00:02:13,478 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:02:13,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:02:13,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:02:13,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:02:13,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:02:13,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:02:13,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:02:13,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:02:13,481 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:02:13,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:02:13,481 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:02:13,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:02:13,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:02:13,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:02:13,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:02:13,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:02:13,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:02:13,482 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:02:13,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:02:13,482 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:02:13,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:02:13,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:02:13,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:02:13,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:02:13,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:02:13,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:02:13,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:02:13,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:02:13,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:02:13,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:02:13,483 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:02:13,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:02:13,484 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:02:13,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:02:13,484 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:02:13,484 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:02:13,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:02:13,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:02:13,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:02:13,755 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:02:13,756 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:02:13,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2023-03-31 00:02:14,977 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:02:15,200 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:02:15,200 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2023-03-31 00:02:15,205 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5547fc1f8/879d61c4102a4aa1a3a942cfee78de3c/FLAG5a66e628c [2023-03-31 00:02:15,217 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5547fc1f8/879d61c4102a4aa1a3a942cfee78de3c [2023-03-31 00:02:15,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:02:15,220 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:02:15,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:02:15,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:02:15,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:02:15,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:02:15" (1/1) ... [2023-03-31 00:02:15,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6ceaef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15, skipping insertion in model container [2023-03-31 00:02:15,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:02:15" (1/1) ... [2023-03-31 00:02:15,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:02:15,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:02:15,368 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-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2023-03-31 00:02:15,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:02:15,385 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:02:15,402 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-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2023-03-31 00:02:15,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:02:15,415 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:02:15,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15 WrapperNode [2023-03-31 00:02:15,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:02:15,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:02:15,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:02:15,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:02:15,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15" (1/1) ... [2023-03-31 00:02:15,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15" (1/1) ... [2023-03-31 00:02:15,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15" (1/1) ... [2023-03-31 00:02:15,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15" (1/1) ... [2023-03-31 00:02:15,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15" (1/1) ... [2023-03-31 00:02:15,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15" (1/1) ... [2023-03-31 00:02:15,453 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15" (1/1) ... [2023-03-31 00:02:15,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15" (1/1) ... [2023-03-31 00:02:15,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:02:15,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:02:15,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:02:15,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:02:15,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15" (1/1) ... [2023-03-31 00:02:15,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:02:15,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:02:15,486 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) [2023-03-31 00:02:15,493 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 [2023-03-31 00:02:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:02:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:02:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:02:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 00:02:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:02:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:02:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:02:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:02:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:02:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-03-31 00:02:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 00:02:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 00:02:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2023-03-31 00:02:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:02:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 00:02:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-03-31 00:02:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:02:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:02:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-03-31 00:02:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:02:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:02:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:02:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:02:15,575 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:02:15,577 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:02:15,772 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:02:15,777 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:02:15,777 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 00:02:15,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:02:15 BoogieIcfgContainer [2023-03-31 00:02:15,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:02:15,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:02:15,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:02:15,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:02:15,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:02:15" (1/3) ... [2023-03-31 00:02:15,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313884c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:02:15, skipping insertion in model container [2023-03-31 00:02:15,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:02:15" (2/3) ... [2023-03-31 00:02:15,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313884c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:02:15, skipping insertion in model container [2023-03-31 00:02:15,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:02:15" (3/3) ... [2023-03-31 00:02:15,786 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2023-03-31 00:02:15,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:02:15,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:02:15,878 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:02:15,884 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=PETRI_NET, 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;@4f21d10d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:02:15,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:02:15,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-31 00:02:15,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-03-31 00:02:15,920 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:02:15,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:02:15,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:02:15,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:02:15,926 INFO L85 PathProgramCache]: Analyzing trace with hash 780653857, now seen corresponding path program 1 times [2023-03-31 00:02:15,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:02:15,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665249753] [2023-03-31 00:02:15,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:02:15,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:02:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:02:16,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:02:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:02:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:02:16,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:02:16,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665249753] [2023-03-31 00:02:16,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665249753] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:02:16,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:02:16,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 00:02:16,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494050922] [2023-03-31 00:02:16,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:02:16,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 00:02:16,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:02:16,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 00:02:16,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 00:02:16,389 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:02:16,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:02:16,547 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2023-03-31 00:02:16,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 00:02:16,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-03-31 00:02:16,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:02:16,556 INFO L225 Difference]: With dead ends: 32 [2023-03-31 00:02:16,556 INFO L226 Difference]: Without dead ends: 16 [2023-03-31 00:02:16,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:02:16,562 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:02:16,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 54 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:02:16,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-03-31 00:02:16,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-03-31 00:02:16,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:02:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-03-31 00:02:16,594 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2023-03-31 00:02:16,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:02:16,595 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-03-31 00:02:16,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:02:16,595 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-03-31 00:02:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-03-31 00:02:16,596 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:02:16,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:02:16,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:02:16,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:02:16,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:02:16,597 INFO L85 PathProgramCache]: Analyzing trace with hash 795757894, now seen corresponding path program 1 times [2023-03-31 00:02:16,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:02:16,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320734449] [2023-03-31 00:02:16,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:02:16,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:02:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 00:02:16,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 00:02:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 00:02:16,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-03-31 00:02:16,646 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 00:02:16,647 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 00:02:16,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:02:16,652 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 00:02:16,656 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 00:02:16,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 12:02:16 BoogieIcfgContainer [2023-03-31 00:02:16,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 00:02:16,677 INFO L158 Benchmark]: Toolchain (without parser) took 1456.93ms. Allocated memory is still 270.5MB. Free memory was 234.5MB in the beginning and 170.0MB in the end (delta: 64.5MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2023-03-31 00:02:16,677 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory is still 131.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 00:02:16,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.60ms. Allocated memory is still 270.5MB. Free memory was 234.5MB in the beginning and 223.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 00:02:16,678 INFO L158 Benchmark]: Boogie Preprocessor took 38.68ms. Allocated memory is still 270.5MB. Free memory was 223.5MB in the beginning and 221.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 00:02:16,679 INFO L158 Benchmark]: RCFGBuilder took 322.69ms. Allocated memory is still 270.5MB. Free memory was 221.9MB in the beginning and 210.4MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-31 00:02:16,679 INFO L158 Benchmark]: TraceAbstraction took 895.51ms. Allocated memory is still 270.5MB. Free memory was 209.8MB in the beginning and 170.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2023-03-31 00:02:16,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory is still 131.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 195.60ms. Allocated memory is still 270.5MB. Free memory was 234.5MB in the beginning and 223.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.68ms. Allocated memory is still 270.5MB. Free memory was 223.5MB in the beginning and 221.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 322.69ms. Allocated memory is still 270.5MB. Free memory was 221.9MB in the beginning and 210.4MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 895.51ms. Allocated memory is still 270.5MB. Free memory was 209.8MB in the beginning and 170.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. 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: 59]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryArithmeticDOUBLEoperation at line 37. Possible FailurePath: [L1] int __return_main; [L17] float __return_72; [L18] int __return_87; VAL [\old(__return_72)=1597463012, \old(__return_87)=1597463011, \old(__return_main)=1597463010, __return_72=0, __return_87=0, __return_main=0] [L21] float main__a; [L22] float main__r; [L23] main__a = __VERIFIER_nondet_float() [L24] int main____CPAchecker_TMP_0; VAL [\old(__return_72)=0, \old(__return_87)=0, __return_72=0, __return_87=0, __return_main=0, main__a=1597463014] [L25] COND TRUE main__a >= 0.10000000149011612 VAL [\old(__return_72)=0, \old(__return_87)=0, __return_72=0, __return_87=0, __return_main=0, main__a=1597463014] [L27] COND TRUE main__a <= 100.0 [L29] main____CPAchecker_TMP_0 = 1 VAL [\old(__return_72)=0, \old(__return_87)=0, __return_72=0, __return_87=0, __return_main=0, main____CPAchecker_TMP_0=1, main__a=1597463014] [L30] COND TRUE main____CPAchecker_TMP_0 != 0 [L33] float __tmp_1; [L34] __tmp_1 = main__a [L35] float InvSqrt__x; [L36] InvSqrt__x = __tmp_1 [L37] float InvSqrt__xhalf = 0.5 * InvSqrt__x; [L38] union float_int InvSqrt__i; [L39] InvSqrt__i.f = InvSqrt__x [L40] EXPR InvSqrt__i.i [L40] InvSqrt__i.i = 1597463007 - ((InvSqrt__i.i) >> 1) [L41] EXPR InvSqrt__i.f [L41] InvSqrt__x = InvSqrt__i.f [L42] InvSqrt__x = InvSqrt__x * (1.5 - ((InvSqrt__xhalf * InvSqrt__x) * InvSqrt__x)) [L43] __return_72 = InvSqrt__x [L44] main__r = __return_72 [L45] int main____CPAchecker_TMP_1; VAL [InvSqrt__i={5:0}, InvSqrt__x=1597463015, \old(__return_72)=0, \old(__return_87)=0, __return_72=1597463015, __return_87=0, __return_main=0, __tmp_1=1597463014, main____CPAchecker_TMP_0=1, main__a=1597463014, main__r=1597463015] [L46] COND FALSE !(main__r >= 0.0) VAL [InvSqrt__i={5:0}, InvSqrt__x=1597463015, \old(__return_72)=0, \old(__return_87)=0, __return_72=1597463015, __return_87=0, __return_main=0, __tmp_1=1597463014, main____CPAchecker_TMP_0=1, main__a=1597463014, main__r=1597463015] [L72] main____CPAchecker_TMP_1 = 0 VAL [InvSqrt__i={5:0}, InvSqrt__x=1597463015, \old(__return_72)=0, \old(__return_87)=0, __return_72=1597463015, __return_87=0, __return_main=0, __tmp_1=1597463014, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463014, main__r=1597463015] [L53] int __tmp_2; [L54] __tmp_2 = main____CPAchecker_TMP_1 [L55] int __VERIFIER_assert__cond; [L56] __VERIFIER_assert__cond = __tmp_2 VAL [InvSqrt__i={5:0}, InvSqrt__x=1597463015, \old(__return_72)=0, \old(__return_87)=0, __VERIFIER_assert__cond=0, __return_72=1597463015, __return_87=0, __return_main=0, __tmp_1=1597463014, __tmp_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463014, main__r=1597463015] [L57] COND TRUE __VERIFIER_assert__cond == 0 VAL [InvSqrt__i={5:0}, InvSqrt__x=1597463015, \old(__return_72)=0, \old(__return_87)=0, __VERIFIER_assert__cond=0, __return_72=1597463015, __return_87=0, __return_main=0, __tmp_1=1597463014, __tmp_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463014, main__r=1597463015] [L59] reach_error() VAL [InvSqrt__i={5:0}, InvSqrt__x=1597463015, \old(__return_72)=0, \old(__return_87)=0, __VERIFIER_assert__cond=0, __return_72=1597463015, __return_87=0, __return_main=0, __tmp_1=1597463014, __tmp_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463014, main__r=1597463015] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 16 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2023-03-31 00:02:16,697 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...