/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/sqrt_poly2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 00:46:40,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 00:46:40,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 00:46:40,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 00:46:40,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 00:46:40,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 00:46:40,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 00:46:40,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 00:46:40,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 00:46:40,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 00:46:40,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 00:46:40,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 00:46:40,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 00:46:40,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 00:46:40,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 00:46:40,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 00:46:40,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 00:46:40,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 00:46:40,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 00:46:40,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 00:46:40,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 00:46:40,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 00:46:40,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 00:46:40,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 00:46:40,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 00:46:40,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 00:46:40,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 00:46:40,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 00:46:40,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 00:46:40,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 00:46:40,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 00:46:40,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 00:46:40,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 00:46:40,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 00:46:40,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 00:46:40,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 00:46:40,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 00:46:40,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 00:46:40,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 00:46:40,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 00:46:40,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 00:46:40,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 00:46:40,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 00:46:40,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 00:46:40,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 00:46:40,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 00:46:40,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 00:46:40,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 00:46:40,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 00:46:40,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 00:46:40,459 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 00:46:40,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 00:46:40,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 00:46:40,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 00:46:40,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 00:46:40,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 00:46:40,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 00:46:40,459 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 00:46:40,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 00:46:40,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 00:46:40,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 00:46:40,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 00:46:40,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 00:46:40,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 00:46:40,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 00:46:40,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 00:46:40,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 00:46:40,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 00:46:40,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 00:46:40,461 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 00:46:40,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 00:46:40,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 00:46:40,461 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 00:46:40,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 00:46:40,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 00:46:40,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 00:46:40,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 00:46:40,673 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 00:46:40,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_poly2.c [2022-01-10 00:46:40,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f481d2e2/2f4af1ce4a234af985a982f96341fb07/FLAG5e10ed436 [2022-01-10 00:46:41,082 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 00:46:41,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_poly2.c [2022-01-10 00:46:41,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f481d2e2/2f4af1ce4a234af985a982f96341fb07/FLAG5e10ed436 [2022-01-10 00:46:41,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f481d2e2/2f4af1ce4a234af985a982f96341fb07 [2022-01-10 00:46:41,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 00:46:41,098 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 00:46:41,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 00:46:41,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 00:46:41,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 00:46:41,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6014b14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41, skipping insertion in model container [2022-01-10 00:46:41,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 00:46:41,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 00:46:41,240 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/sqrt_poly2.c[587,600] [2022-01-10 00:46:41,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 00:46:41,264 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 00:46:41,277 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/sqrt_poly2.c[587,600] [2022-01-10 00:46:41,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 00:46:41,302 INFO L208 MainTranslator]: Completed translation [2022-01-10 00:46:41,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41 WrapperNode [2022-01-10 00:46:41,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 00:46:41,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 00:46:41,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 00:46:41,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 00:46:41,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,357 INFO L137 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2022-01-10 00:46:41,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 00:46:41,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 00:46:41,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 00:46:41,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 00:46:41,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 00:46:41,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 00:46:41,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 00:46:41,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 00:46:41,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41" (1/1) ... [2022-01-10 00:46:41,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 00:46:41,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 00:46:41,423 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) [2022-01-10 00:46:41,429 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 [2022-01-10 00:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 00:46:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 00:46:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 00:46:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-10 00:46:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-10 00:46:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-10 00:46:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 00:46:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 00:46:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-10 00:46:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 00:46:41,555 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 00:46:41,556 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 00:46:41,664 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 00:46:41,668 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 00:46:41,668 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 00:46:41,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:46:41 BoogieIcfgContainer [2022-01-10 00:46:41,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 00:46:41,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 00:46:41,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 00:46:41,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 00:46:41,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:46:41" (1/3) ... [2022-01-10 00:46:41,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7651c7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:46:41, skipping insertion in model container [2022-01-10 00:46:41,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:46:41" (2/3) ... [2022-01-10 00:46:41,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7651c7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:46:41, skipping insertion in model container [2022-01-10 00:46:41,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:46:41" (3/3) ... [2022-01-10 00:46:41,675 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_poly2.c [2022-01-10 00:46:41,679 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 00:46:41,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 00:46:41,708 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 00:46:41,713 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 00:46:41,713 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 00:46:41,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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) [2022-01-10 00:46:41,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 00:46:41,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:46:41,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 00:46:41,725 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:46:41,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:46:41,729 INFO L85 PathProgramCache]: Analyzing trace with hash -594069783, now seen corresponding path program 1 times [2022-01-10 00:46:41,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:46:41,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599075741] [2022-01-10 00:46:41,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:46:41,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:46:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:46:41,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 00:46:41,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:46:41,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599075741] [2022-01-10 00:46:41,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599075741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:46:41,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:46:41,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 00:46:41,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037753437] [2022-01-10 00:46:41,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:46:41,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 00:46:41,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:46:41,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 00:46:41,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 00:46:41,860 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-01-10 00:46:41,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:46:41,870 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-01-10 00:46:41,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 00:46:41,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) Word has length 9 [2022-01-10 00:46:41,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:46:41,877 INFO L225 Difference]: With dead ends: 25 [2022-01-10 00:46:41,877 INFO L226 Difference]: Without dead ends: 10 [2022-01-10 00:46:41,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 00:46:41,885 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 00:46:41,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 00:46:41,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-01-10 00:46:41,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-01-10 00:46:41,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2022-01-10 00:46:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-01-10 00:46:41,913 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2022-01-10 00:46:41,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:46:41,913 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-01-10 00:46:41,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-01-10 00:46:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-01-10 00:46:41,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 00:46:41,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:46:41,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 00:46:41,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 00:46:41,914 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:46:41,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:46:41,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1180937579, now seen corresponding path program 1 times [2022-01-10 00:46:41,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:46:41,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945174443] [2022-01-10 00:46:41,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:46:41,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:46:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 00:46:42,011 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 00:46:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 00:46:42,091 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 00:46:42,092 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 00:46:42,093 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 00:46:42,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 00:46:42,102 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 00:46:42,105 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 00:46:42,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:46:42 BoogieIcfgContainer [2022-01-10 00:46:42,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 00:46:42,125 INFO L158 Benchmark]: Toolchain (without parser) took 1026.25ms. Allocated memory was 206.6MB in the beginning and 300.9MB in the end (delta: 94.4MB). Free memory was 152.1MB in the beginning and 230.7MB in the end (delta: -78.5MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. [2022-01-10 00:46:42,125 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory is still 168.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 00:46:42,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.42ms. Allocated memory was 206.6MB in the beginning and 300.9MB in the end (delta: 94.4MB). Free memory was 151.9MB in the beginning and 272.6MB in the end (delta: -120.7MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2022-01-10 00:46:42,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.17ms. Allocated memory is still 300.9MB. Free memory was 272.6MB in the beginning and 271.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 00:46:42,126 INFO L158 Benchmark]: Boogie Preprocessor took 26.94ms. Allocated memory is still 300.9MB. Free memory was 271.0MB in the beginning and 270.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 00:46:42,126 INFO L158 Benchmark]: RCFGBuilder took 284.25ms. Allocated memory is still 300.9MB. Free memory was 270.0MB in the beginning and 259.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-10 00:46:42,127 INFO L158 Benchmark]: TraceAbstraction took 453.48ms. Allocated memory is still 300.9MB. Free memory was 258.4MB in the beginning and 230.7MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-01-10 00:46:42,129 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 206.6MB. Free memory is still 168.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 203.42ms. Allocated memory was 206.6MB in the beginning and 300.9MB in the end (delta: 94.4MB). Free memory was 151.9MB in the beginning and 272.6MB in the end (delta: -120.7MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.17ms. Allocated memory is still 300.9MB. Free memory was 272.6MB in the beginning and 271.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.94ms. Allocated memory is still 300.9MB. Free memory was 271.0MB in the beginning and 270.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 284.25ms. Allocated memory is still 300.9MB. Free memory was 270.0MB in the beginning and 259.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 453.48ms. Allocated memory is still 300.9MB. Free memory was 258.4MB in the beginning and 230.7MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. 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: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 38, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of bitwiseAnd at line 37, overapproximation of someBinaryDOUBLEComparisonOperation at line 65. Possible FailurePath: [L17] double C0 = 1.414213538; [L18] double C1 = 0.229761391; [L19] double C2 = 1.296735525; [L20] double C3 = -0.901098370; [L21] double C4 = 0.493553400; [L22] double C5 = -0.118958666; VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L58] double x,y; [L60] x = __VERIFIER_nondet_double() [L61] CALL assume_abort_if_not(x >= 1. && x <= 1e10) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=1] [L61] RET assume_abort_if_not(x >= 1. && x <= 1e10) [L63] CALL, EXPR sqrt_custom(x) [L31] union u x; [L32] double r; [L33] int exp; [L35] x.d = a [L37] EXPR x.i[0] [L37] exp = (x.i[0] & 0x7FF00000) >> 20 [L38] EXPR x.i[0] [L38] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L39] EXPR x.d [L39] r = x.d * 0.5 [L41] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=4294967299, a=4294967299, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-2, x={4:0}] [L43] COND TRUE exp % 2 == 0 [L44] exp++ VAL [\old(a)=4294967299, a=4294967299, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, x={4:0}] [L50] x.i[0] = (exp/2 + 511) << 20 [L51] EXPR x.d [L51] r = r * x.d [L53] return r; [L53] return r; VAL [\old(a)=4294967299, \result=4294967297, a=4294967299, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, r=4294967297] [L63] RET, EXPR sqrt_custom(x) [L63] y = sqrt_custom(x) [L65] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) [L14] COND TRUE !(cond) VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] [L14] reach_error() VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2022-01-10 00:46:42,167 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...