/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/locks/test_locks_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 15:50:48,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 15:50:48,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 15:50:48,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 15:50:48,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 15:50:48,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 15:50:48,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 15:50:48,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 15:50:48,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 15:50:48,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 15:50:48,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 15:50:48,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 15:50:48,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 15:50:48,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 15:50:48,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 15:50:48,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 15:50:48,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 15:50:48,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 15:50:48,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 15:50:48,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 15:50:48,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 15:50:48,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 15:50:48,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 15:50:48,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 15:50:48,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 15:50:48,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 15:50:48,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 15:50:48,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 15:50:48,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 15:50:48,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 15:50:48,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 15:50:48,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 15:50:48,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 15:50:48,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 15:50:48,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 15:50:48,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 15:50:48,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-02 15:50:48,628 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 15:50:48,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 15:50:48,629 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 15:50:48,629 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 15:50:48,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 15:50:48,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 15:50:48,630 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 15:50:48,630 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 15:50:48,630 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 15:50:48,630 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 15:50:48,631 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 15:50:48,631 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 15:50:48,631 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 15:50:48,631 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 15:50:48,631 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 15:50:48,631 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 15:50:48,631 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 15:50:48,631 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 15:50:48,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 15:50:48,632 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 15:50:48,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 15:50:48,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 15:50:48,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 15:50:48,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 15:50:48,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 15:50:48,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 15:50:48,633 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 15:50:48,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 15:50:48,633 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 15:50:48,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 15:50:48,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 15:50:48,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 15:50:48,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 15:50:48,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 15:50:48,634 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 15:50:48,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 15:50:48,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 15:50:48,634 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 15:50:48,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 15:50:48,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 15:50:48,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 15:50:48,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 15:50:48,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 15:50:48,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 15:50:48,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 15:50:48,844 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 15:50:48,844 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 15:50:48,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_15-1.c [2023-04-02 15:50:49,720 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 15:50:49,904 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 15:50:49,904 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c [2023-04-02 15:50:49,909 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f7dc2e4/da2457d5d96e49d6bd031679682ae61e/FLAGc94e343e0 [2023-04-02 15:50:49,918 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f7dc2e4/da2457d5d96e49d6bd031679682ae61e [2023-04-02 15:50:49,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 15:50:49,921 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 15:50:49,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 15:50:49,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 15:50:49,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 15:50:49,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:50:49" (1/1) ... [2023-04-02 15:50:49,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f8f830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:49, skipping insertion in model container [2023-04-02 15:50:49,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:50:49" (1/1) ... [2023-04-02 15:50:49,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 15:50:49,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 15:50:50,086 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/locks/test_locks_15-1.c[5654,5667] [2023-04-02 15:50:50,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 15:50:50,099 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 15:50:50,131 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/locks/test_locks_15-1.c[5654,5667] [2023-04-02 15:50:50,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 15:50:50,140 INFO L208 MainTranslator]: Completed translation [2023-04-02 15:50:50,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:50 WrapperNode [2023-04-02 15:50:50,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 15:50:50,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 15:50:50,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 15:50:50,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 15:50:50,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:50" (1/1) ... [2023-04-02 15:50:50,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:50" (1/1) ... [2023-04-02 15:50:50,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:50" (1/1) ... [2023-04-02 15:50:50,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:50" (1/1) ... [2023-04-02 15:50:50,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:50" (1/1) ... [2023-04-02 15:50:50,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:50" (1/1) ... [2023-04-02 15:50:50,179 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:50" (1/1) ... [2023-04-02 15:50:50,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:50" (1/1) ... [2023-04-02 15:50:50,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 15:50:50,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 15:50:50,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 15:50:50,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 15:50:50,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:50" (1/1) ... [2023-04-02 15:50:50,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 15:50:50,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 15:50:50,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 15:50:50,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 15:50:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 15:50:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 15:50:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 15:50:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 15:50:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 15:50:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 15:50:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 15:50:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 15:50:50,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 15:50:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 15:50:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 15:50:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 15:50:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 15:50:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 15:50:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 15:50:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 15:50:50,320 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 15:50:50,321 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 15:50:50,508 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 15:50:50,660 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 15:50:50,660 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 15:50:50,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:50:50 BoogieIcfgContainer [2023-04-02 15:50:50,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 15:50:50,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 15:50:50,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 15:50:50,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 15:50:50,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 03:50:49" (1/3) ... [2023-04-02 15:50:50,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d93fa7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:50:50, skipping insertion in model container [2023-04-02 15:50:50,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:50:50" (2/3) ... [2023-04-02 15:50:50,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d93fa7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:50:50, skipping insertion in model container [2023-04-02 15:50:50,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:50:50" (3/3) ... [2023-04-02 15:50:50,670 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2023-04-02 15:50:50,694 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 15:50:50,694 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 15:50:50,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 15:50:50,736 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@78c816a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 15:50:50,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 15:50:50,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 38 states have (on average 1.868421052631579) internal successors, (71), 39 states have internal predecessors, (71), 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) [2023-04-02 15:50:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-04-02 15:50:50,742 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:50:50,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 15:50:50,743 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:50:50,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:50:50,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1007993210, now seen corresponding path program 1 times [2023-04-02 15:50:50,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:50:50,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089177197] [2023-04-02 15:50:50,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:50:50,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:50:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:50:50,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:50:50,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:50:50,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089177197] [2023-04-02 15:50:50,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089177197] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 15:50:50,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 15:50:50,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 15:50:50,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445586870] [2023-04-02 15:50:50,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 15:50:50,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 15:50:50,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 15:50:51,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 15:50:51,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 15:50:51,028 INFO L87 Difference]: Start difference. First operand has 44 states, 38 states have (on average 1.868421052631579) internal successors, (71), 39 states have internal predecessors, (71), 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 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 15:50:51,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 15:50:51,082 INFO L93 Difference]: Finished difference Result 86 states and 146 transitions. [2023-04-02 15:50:51,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 15:50:51,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 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 10 [2023-04-02 15:50:51,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 15:50:51,091 INFO L225 Difference]: With dead ends: 86 [2023-04-02 15:50:51,091 INFO L226 Difference]: Without dead ends: 71 [2023-04-02 15:50:51,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 15:50:51,095 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 62 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 15:50:51,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 200 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 15:50:51,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-04-02 15:50:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 39. [2023-04-02 15:50:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 35 states have internal predecessors, (64), 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) [2023-04-02 15:50:51,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 67 transitions. [2023-04-02 15:50:51,140 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 67 transitions. Word has length 10 [2023-04-02 15:50:51,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 15:50:51,141 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 67 transitions. [2023-04-02 15:50:51,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 15:50:51,141 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 67 transitions. [2023-04-02 15:50:51,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-04-02 15:50:51,142 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:50:51,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 15:50:51,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 15:50:51,142 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:50:51,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:50:51,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1007986018, now seen corresponding path program 1 times [2023-04-02 15:50:51,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:50:51,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365965049] [2023-04-02 15:50:51,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:50:51,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:50:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 15:50:51,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 15:50:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 15:50:51,224 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-02 15:50:51,224 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 15:50:51,225 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 15:50:51,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 15:50:51,229 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-02 15:50:51,231 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 15:50:51,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 03:50:51 BoogieIcfgContainer [2023-04-02 15:50:51,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 15:50:51,267 INFO L158 Benchmark]: Toolchain (without parser) took 1345.34ms. Allocated memory is still 339.7MB. Free memory was 303.2MB in the beginning and 300.4MB in the end (delta: 2.8MB). Peak memory consumption was 3.7MB. Max. memory is 8.0GB. [2023-04-02 15:50:51,267 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 228.6MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 15:50:51,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.27ms. Allocated memory is still 339.7MB. Free memory was 303.2MB in the beginning and 291.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-02 15:50:51,270 INFO L158 Benchmark]: Boogie Preprocessor took 37.03ms. Allocated memory is still 339.7MB. Free memory was 291.6MB in the beginning and 289.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 15:50:51,270 INFO L158 Benchmark]: RCFGBuilder took 483.15ms. Allocated memory is still 339.7MB. Free memory was 289.6MB in the beginning and 259.0MB in the end (delta: 30.6MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-04-02 15:50:51,271 INFO L158 Benchmark]: TraceAbstraction took 600.14ms. Allocated memory is still 339.7MB. Free memory was 258.1MB in the beginning and 300.4MB in the end (delta: -42.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 15:50:51,272 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 228.6MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 221.27ms. Allocated memory is still 339.7MB. Free memory was 303.2MB in the beginning and 291.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.03ms. Allocated memory is still 339.7MB. Free memory was 291.6MB in the beginning and 289.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 483.15ms. Allocated memory is still 339.7MB. Free memory was 289.6MB in the beginning and 259.0MB in the end (delta: 30.6MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 600.14ms. Allocated memory is still 339.7MB. Free memory was 258.1MB in the beginning and 300.4MB in the end (delta: -42.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 233]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; VAL [p10=0, p11=0, p12=0, p13=1, p14=1, p15=0, p1=0, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=0, p9=0] [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 [L93] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L101] COND TRUE p3 != 0 [L102] lk3 = 1 [L105] COND TRUE p4 != 0 [L106] lk4 = 1 [L109] COND FALSE !(p5 != 0) [L113] COND TRUE p6 != 0 [L114] lk6 = 1 [L117] COND TRUE p7 != 0 [L118] lk7 = 1 [L121] COND FALSE !(p8 != 0) [L125] COND FALSE !(p9 != 0) [L129] COND FALSE !(p10 != 0) [L133] COND FALSE !(p11 != 0) [L137] COND FALSE !(p12 != 0) [L141] COND TRUE p13 != 0 [L142] lk13 = 1 [L145] COND TRUE p14 != 0 [L146] lk14 = 1 [L149] COND FALSE !(p15 != 0) VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=1, lk14=1, lk15=0, lk1=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=0, lk9=0, p10=0, p11=0, p12=0, p13=1, p14=1, p15=0, p1=0, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=0, p9=0] [L155] COND FALSE !(p1 != 0) VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=1, lk14=1, lk15=0, lk1=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=0, lk9=0, p10=0, p11=0, p12=0, p13=1, p14=1, p15=0, p1=0, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=0, p9=0] [L160] COND FALSE !(p2 != 0) VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=1, lk14=1, lk15=0, lk1=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=0, lk9=0, p10=0, p11=0, p12=0, p13=1, p14=1, p15=0, p1=0, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=0, p9=0] [L233] reach_error() VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=1, lk14=1, lk15=0, lk1=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=0, lk9=0, p10=0, p11=0, p12=0, p13=1, p14=1, p15=0, p1=0, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=0, p9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 200 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 72 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 32 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 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 proved your program to be incorrect! [2023-04-02 15:50:51,289 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...