/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:44:28,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:44:28,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:44:28,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:44:28,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:44:28,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:44:28,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:44:28,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:44:28,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:44:28,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:44:28,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:44:28,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:44:28,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:44:28,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:44:28,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:44:28,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:44:28,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:44:28,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:44:28,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:44:28,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:44:28,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:44:28,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:44:28,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:44:28,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:44:28,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 16:44:28,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:44:28,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:44:28,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:44:28,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:44:28,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:44:28,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:44:28,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:44:28,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:44:28,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:44:28,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:44:28,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:44:28,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:44:28,354 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:44:28,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:44:28,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:44:28,355 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:44:28,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:44:28,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:44:28,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:44:28,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:44:28,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:44:28,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:44:28,356 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:44:28,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:44:28,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:44:28,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:44:28,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:44:28,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:44:28,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:44:28,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:44:28,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:44:28,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:44:28,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:44:28,357 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:44:28,358 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:44:28,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:44:28,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:44:28,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:44:28,583 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:44:28,584 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:44:28,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2022-01-31 16:44:28,644 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7b9f0824/e0df235f81614d6d9a0e02fcd8efcf17/FLAG135b22e87 [2022-01-31 16:44:28,941 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:44:28,941 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2022-01-31 16:44:28,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7b9f0824/e0df235f81614d6d9a0e02fcd8efcf17/FLAG135b22e87 [2022-01-31 16:44:29,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7b9f0824/e0df235f81614d6d9a0e02fcd8efcf17 [2022-01-31 16:44:29,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:44:29,390 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:44:29,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:44:29,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:44:29,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:44:29,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:29" (1/1) ... [2022-01-31 16:44:29,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@401871df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:29, skipping insertion in model container [2022-01-31 16:44:29,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:29" (1/1) ... [2022-01-31 16:44:29,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:44:29,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:44:29,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2022-01-31 16:44:29,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:44:29,616 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:44:29,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2022-01-31 16:44:29,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:44:29,637 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:44:29,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:29 WrapperNode [2022-01-31 16:44:29,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:44:29,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:44:29,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:44:29,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:44:29,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:29" (1/1) ... [2022-01-31 16:44:29,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:29" (1/1) ... [2022-01-31 16:44:29,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:29" (1/1) ... [2022-01-31 16:44:29,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:29" (1/1) ... [2022-01-31 16:44:29,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:29" (1/1) ... [2022-01-31 16:44:29,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:29" (1/1) ... [2022-01-31 16:44:29,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:29" (1/1) ... [2022-01-31 16:44:29,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:44:29,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:44:29,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:44:29,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:44:29,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:29" (1/1) ... [2022-01-31 16:44:29,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:44:29,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:44:29,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 16:44:29,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 16:44:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:44:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:44:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:44:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 16:44:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:44:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:44:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:44:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:44:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:44:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 16:44:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 16:44:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 16:44:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2022-01-31 16:44:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:44:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 16:44:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 16:44:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:44:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:44:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 16:44:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:44:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:44:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:44:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:44:29,818 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:44:29,819 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:44:29,908 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:44:29,912 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:44:29,912 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-31 16:44:29,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:29 BoogieIcfgContainer [2022-01-31 16:44:29,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:44:29,914 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:44:29,914 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:44:29,914 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:44:29,916 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:29" (1/1) ... [2022-01-31 16:44:29,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:44:29 BasicIcfg [2022-01-31 16:44:29,937 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:44:29,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:44:29,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:44:29,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:44:29,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:44:29" (1/4) ... [2022-01-31 16:44:29,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ced33b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:29, skipping insertion in model container [2022-01-31 16:44:29,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:29" (2/4) ... [2022-01-31 16:44:29,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ced33b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:29, skipping insertion in model container [2022-01-31 16:44:29,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:29" (3/4) ... [2022-01-31 16:44:29,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ced33b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:29, skipping insertion in model container [2022-01-31 16:44:29,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:44:29" (4/4) ... [2022-01-31 16:44:29,957 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.cJordan [2022-01-31 16:44:29,966 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:44:29,966 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:44:30,019 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:44:30,023 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 16:44:30,023 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:44:30,032 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) [2022-01-31 16:44:30,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-31 16:44:30,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:44:30,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:44:30,038 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:44:30,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:44:30,041 INFO L85 PathProgramCache]: Analyzing trace with hash -729459679, now seen corresponding path program 1 times [2022-01-31 16:44:30,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:44:30,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708084765] [2022-01-31 16:44:30,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:44:30,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:44:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:44:30,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:44:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:44:30,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:44:30,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:44:30,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708084765] [2022-01-31 16:44:30,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708084765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:44:30,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:44:30,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:44:30,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603528616] [2022-01-31 16:44:30,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:44:30,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:44:30,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:44:30,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:44:30,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:44:30,307 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) [2022-01-31 16:44:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:44:30,412 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-01-31 16:44:30,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:44:30,414 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 [2022-01-31 16:44:30,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:44:30,419 INFO L225 Difference]: With dead ends: 26 [2022-01-31 16:44:30,419 INFO L226 Difference]: Without dead ends: 16 [2022-01-31 16:44:30,420 INFO L932 BasicCegarLoop]: 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 [2022-01-31 16:44:30,428 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 25 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:44:30,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 58 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:44:30,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-01-31 16:44:30,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-01-31 16:44:30,447 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) [2022-01-31 16:44:30,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-01-31 16:44:30,448 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2022-01-31 16:44:30,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:44:30,449 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-01-31 16:44:30,449 INFO L471 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) [2022-01-31 16:44:30,449 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-01-31 16:44:30,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-31 16:44:30,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:44:30,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:44:30,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:44:30,450 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:44:30,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:44:30,450 INFO L85 PathProgramCache]: Analyzing trace with hash -728476576, now seen corresponding path program 1 times [2022-01-31 16:44:30,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:44:30,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656921739] [2022-01-31 16:44:30,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:44:30,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:44:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:44:30,466 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 16:44:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:44:30,503 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-31 16:44:30,503 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 16:44:30,508 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:44:30,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:44:30,511 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 16:44:30,513 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:44:30,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:30 BasicIcfg [2022-01-31 16:44:30,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:44:30,543 INFO L158 Benchmark]: Toolchain (without parser) took 1153.64ms. Allocated memory is still 175.1MB. Free memory was 122.7MB in the beginning and 101.0MB in the end (delta: 21.6MB). Peak memory consumption was 21.5MB. Max. memory is 8.0GB. [2022-01-31 16:44:30,544 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 175.1MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:44:30,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.17ms. Allocated memory is still 175.1MB. Free memory was 122.5MB in the beginning and 147.3MB in the end (delta: -24.8MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. [2022-01-31 16:44:30,546 INFO L158 Benchmark]: Boogie Preprocessor took 27.86ms. Allocated memory is still 175.1MB. Free memory was 147.3MB in the beginning and 145.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:44:30,546 INFO L158 Benchmark]: RCFGBuilder took 246.98ms. Allocated memory is still 175.1MB. Free memory was 145.8MB in the beginning and 135.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-31 16:44:30,546 INFO L158 Benchmark]: IcfgTransformer took 23.19ms. Allocated memory is still 175.1MB. Free memory was 135.0MB in the beginning and 133.9MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 16:44:30,547 INFO L158 Benchmark]: TraceAbstraction took 591.41ms. Allocated memory is still 175.1MB. Free memory was 133.2MB in the beginning and 101.0MB in the end (delta: 32.2MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-01-31 16:44:30,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 175.1MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 245.17ms. Allocated memory is still 175.1MB. Free memory was 122.5MB in the beginning and 147.3MB in the end (delta: -24.8MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.86ms. Allocated memory is still 175.1MB. Free memory was 147.3MB in the beginning and 145.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 246.98ms. Allocated memory is still 175.1MB. Free memory was 145.8MB in the beginning and 135.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 23.19ms. Allocated memory is still 175.1MB. Free memory was 135.0MB in the beginning and 133.9MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 591.41ms. Allocated memory is still 175.1MB. Free memory was 133.2MB in the beginning and 101.0MB in the end (delta: 32.2MB). Peak memory consumption was 31.5MB. 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)=1597463009, \old(__return_87)=1597463015, \old(__return_main)=1597463013, __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=1597463011] [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=1597463011] [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=1597463011] [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 [\old(__return_72)=0, \old(__return_87)=0, __return_72=1597463014, __return_87=0, __return_main=0, __tmp_1=1597463011, InvSqrt__i={5:0}, InvSqrt__x=1597463014, main____CPAchecker_TMP_0=1, main__a=1597463011, main__r=1597463014] [L46] COND FALSE !(main__r >= 0.0) VAL [\old(__return_72)=0, \old(__return_87)=0, __return_72=1597463014, __return_87=0, __return_main=0, __tmp_1=1597463011, InvSqrt__i={5:0}, InvSqrt__x=1597463014, main____CPAchecker_TMP_0=1, main__a=1597463011, main__r=1597463014] [L72] main____CPAchecker_TMP_1 = 0 VAL [\old(__return_72)=0, \old(__return_87)=0, __return_72=1597463014, __return_87=0, __return_main=0, __tmp_1=1597463011, InvSqrt__i={5:0}, InvSqrt__x=1597463014, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463011, main__r=1597463014] [L53] int __tmp_2; [L54] __tmp_2 = main____CPAchecker_TMP_1 [L55] int __VERIFIER_assert__cond; [L56] __VERIFIER_assert__cond = __tmp_2 VAL [\old(__return_72)=0, \old(__return_87)=0, __return_72=1597463014, __return_87=0, __return_main=0, __tmp_1=1597463011, __tmp_2=0, __VERIFIER_assert__cond=0, InvSqrt__i={5:0}, InvSqrt__x=1597463014, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463011, main__r=1597463014] [L57] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_72)=0, \old(__return_87)=0, __return_72=1597463014, __return_87=0, __return_main=0, __tmp_1=1597463011, __tmp_2=0, __VERIFIER_assert__cond=0, InvSqrt__i={5:0}, InvSqrt__x=1597463014, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463011, main__r=1597463014] [L59] reach_error() VAL [\old(__return_72)=0, \old(__return_87)=0, __return_72=1597463014, __return_87=0, __return_main=0, __tmp_1=1597463011, __tmp_2=0, __VERIFIER_assert__cond=0, InvSqrt__i={5:0}, InvSqrt__x=1597463014, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=1597463011, main__r=1597463014] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 20 mSDtfsCounter, 44 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, 0.1s 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 [2022-01-31 16:44:30,586 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...