/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_Bitvector.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-optional-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:03:37,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:03:37,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:03:37,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:03:37,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:03:37,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:03:37,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:03:37,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:03:37,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:03:37,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:03:37,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:03:37,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:03:37,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:03:37,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:03:37,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:03:37,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:03:37,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:03:37,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:03:37,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:03:37,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:03:37,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:03:37,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:03:37,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:03:37,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:03:37,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:03:37,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:03:37,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:03:37,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:03:37,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:03:37,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:03:37,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:03:37,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:03:37,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:03:37,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:03:37,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:03:37,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:03:37,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:03:37,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:03:37,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:03:37,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:03:37,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:03:38,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:03:38,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:03:38,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:03:38,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:03:38,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:03:38,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:03:38,030 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:03:38,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:03:38,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:03:38,030 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:03:38,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:03:38,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:03:38,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:03:38,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:03:38,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:03:38,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:03:38,031 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:03:38,031 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:03:38,031 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:03:38,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:03:38,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:03:38,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:03:38,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:03:38,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:03:38,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:03:38,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:03:38,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:03:38,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:03:38,033 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:03:38,033 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:03:38,033 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:03:38,033 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:03:38,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:03:38,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:03:38,033 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:03:38,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:03:38,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:03:38,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:03:38,279 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:03:38,281 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:03:38,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-optional-2.i [2022-01-10 06:03:38,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c2106a6e/5dc19378ecb349cd99a436ae690c69b3/FLAG0c3e2be0d [2022-01-10 06:03:38,967 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:03:38,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-optional-2.i [2022-01-10 06:03:38,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c2106a6e/5dc19378ecb349cd99a436ae690c69b3/FLAG0c3e2be0d [2022-01-10 06:03:39,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c2106a6e/5dc19378ecb349cd99a436ae690c69b3 [2022-01-10 06:03:39,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:03:39,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:03:39,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:03:39,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:03:39,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:03:39,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e6a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39, skipping insertion in model container [2022-01-10 06:03:39,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:03:39,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:03:39,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-optional-2.i[22706,22719] [2022-01-10 06:03:39,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:03:39,773 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:03:39,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-optional-2.i[22706,22719] [2022-01-10 06:03:39,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:03:39,860 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:03:39,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39 WrapperNode [2022-01-10 06:03:39,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:03:39,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:03:39,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:03:39,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:03:39,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,906 INFO L137 Inliner]: procedures = 122, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 111 [2022-01-10 06:03:39,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:03:39,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:03:39,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:03:39,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:03:39,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:03:39,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:03:39,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:03:39,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:03:39,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39" (1/1) ... [2022-01-10 06:03:39,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:03:39,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:03:39,977 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 06:03:39,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:03:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 06:03:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 06:03:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:03:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 06:03:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 06:03:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 06:03:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 06:03:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:03:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:03:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:03:40,122 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:03:40,123 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:03:40,758 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:03:40,764 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:03:40,764 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-10 06:03:40,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:03:40 BoogieIcfgContainer [2022-01-10 06:03:40,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:03:40,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:03:40,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:03:40,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:03:40,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:03:39" (1/3) ... [2022-01-10 06:03:40,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f560146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:03:40, skipping insertion in model container [2022-01-10 06:03:40,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:39" (2/3) ... [2022-01-10 06:03:40,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f560146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:03:40, skipping insertion in model container [2022-01-10 06:03:40,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:03:40" (3/3) ... [2022-01-10 06:03:40,774 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-optional-2.i [2022-01-10 06:03:40,784 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:03:40,785 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:03:40,828 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:03:40,834 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 06:03:40,834 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:03:40,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 24 states have internal predecessors, (39), 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 06:03:40,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 06:03:40,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:03:40,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:03:40,868 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:03:40,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:03:40,874 INFO L85 PathProgramCache]: Analyzing trace with hash 936506725, now seen corresponding path program 1 times [2022-01-10 06:03:40,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:03:40,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023151650] [2022-01-10 06:03:40,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:03:40,911 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:03:40,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:03:40,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:03:40,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:03:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:03:41,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:03:41,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:03:41,081 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 06:03:41,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:03:41,082 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:03:41,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023151650] [2022-01-10 06:03:41,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023151650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:03:41,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:03:41,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:03:41,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919416117] [2022-01-10 06:03:41,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:03:41,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:03:41,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:03:41,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:03:41,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:03:41,114 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 24 states have internal predecessors, (39), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 06:03:41,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:03:41,129 INFO L93 Difference]: Finished difference Result 42 states and 64 transitions. [2022-01-10 06:03:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:03:41,131 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-01-10 06:03:41,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:03:41,138 INFO L225 Difference]: With dead ends: 42 [2022-01-10 06:03:41,138 INFO L226 Difference]: Without dead ends: 17 [2022-01-10 06:03:41,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 06:03:41,145 INFO L933 BasicCegarLoop]: 33 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, 33 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 06:03:41,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:03:41,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-10 06:03:41,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-01-10 06:03:41,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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 06:03:41,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2022-01-10 06:03:41,174 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 23 transitions. Word has length 11 [2022-01-10 06:03:41,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:03:41,174 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 23 transitions. [2022-01-10 06:03:41,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 06:03:41,175 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2022-01-10 06:03:41,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 06:03:41,175 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:03:41,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:03:41,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 06:03:41,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:03:41,389 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:03:41,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:03:41,389 INFO L85 PathProgramCache]: Analyzing trace with hash 508853398, now seen corresponding path program 1 times [2022-01-10 06:03:41,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:03:41,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178545844] [2022-01-10 06:03:41,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:03:41,391 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:03:41,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:03:41,413 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:03:41,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:03:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 06:03:41,535 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 06:03:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 06:03:41,637 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-01-10 06:03:41,637 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 06:03:41,638 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 06:03:41,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-01-10 06:03:41,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:03:41,844 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 06:03:41,848 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 06:03:41,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:03:41 BoogieIcfgContainer [2022-01-10 06:03:41,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 06:03:41,881 INFO L158 Benchmark]: Toolchain (without parser) took 2510.88ms. Allocated memory was 182.5MB in the beginning and 274.7MB in the end (delta: 92.3MB). Free memory was 123.1MB in the beginning and 183.1MB in the end (delta: -60.0MB). Peak memory consumption was 32.1MB. Max. memory is 8.0GB. [2022-01-10 06:03:41,881 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 182.5MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:03:41,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.34ms. Allocated memory was 182.5MB in the beginning and 274.7MB in the end (delta: 92.3MB). Free memory was 122.9MB in the beginning and 238.6MB in the end (delta: -115.6MB). Peak memory consumption was 6.2MB. Max. memory is 8.0GB. [2022-01-10 06:03:41,883 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.43ms. Allocated memory is still 274.7MB. Free memory was 238.6MB in the beginning and 236.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:03:41,883 INFO L158 Benchmark]: Boogie Preprocessor took 32.12ms. Allocated memory is still 274.7MB. Free memory was 236.6MB in the beginning and 234.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:03:41,883 INFO L158 Benchmark]: RCFGBuilder took 822.84ms. Allocated memory is still 274.7MB. Free memory was 234.5MB in the beginning and 216.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-01-10 06:03:41,884 INFO L158 Benchmark]: TraceAbstraction took 1110.33ms. Allocated memory is still 274.7MB. Free memory was 216.1MB in the beginning and 183.1MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-01-10 06:03:41,886 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 182.5MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 487.34ms. Allocated memory was 182.5MB in the beginning and 274.7MB in the end (delta: 92.3MB). Free memory was 122.9MB in the beginning and 238.6MB in the end (delta: -115.6MB). Peak memory consumption was 6.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.43ms. Allocated memory is still 274.7MB. Free memory was 238.6MB in the beginning and 236.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.12ms. Allocated memory is still 274.7MB. Free memory was 236.6MB in the beginning and 234.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 822.84ms. Allocated memory is still 274.7MB. Free memory was 234.5MB in the beginning and 216.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 1110.33ms. Allocated memory is still 274.7MB. Free memory was 216.1MB in the beginning and 183.1MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. 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: 1009]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L997] SLL* head = malloc(sizeof(SLL)); [L998] head->next = ((void*)0) [L999] head->prev = ((void*)0) VAL [head={6:0}] [L1000] COND TRUE __VERIFIER_nondet_int() [L1000] head->data = 2 [L1000] head->opt = malloc(sizeof(SLL)) [L1000] EXPR head->opt [L1000] head->opt->next = ((void*)0) [L1001] SLL* x = head; VAL [head={6:0}, x={6:0}] [L1003] COND FALSE !(__VERIFIER_nondet_int()) [L1006] x = head VAL [head={6:0}, x={6:0}] [L1007] COND TRUE x != ((void*)0) VAL [head={6:0}, x={6:0}] [L1009] EXPR x->data [L1009] EXPR x->data == 2 && x->opt == x [L1009] EXPR x->opt [L1009] EXPR x->data == 2 && x->opt == x VAL [head={6:0}, x={6:0}, x->data=2, x->data == 2 && x->opt == x=0, x->opt={3:0}] [L1009] COND TRUE !(x->data == 2 && x->opt == x) [L1009] reach_error() VAL [head={6:0}, x={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, 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, 33 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, 33 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 84 ConjunctsInSsa, 1 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! [2022-01-10 06:03:41,933 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...