./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4bb6c46a4de77c33ebd5db0d25fe513601ef52929336922ed8d1cb2e429dd77c --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 02:04:40,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 02:04:40,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 02:04:40,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 02:04:40,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 02:04:40,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 02:04:40,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 02:04:40,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 02:04:40,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 02:04:40,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 02:04:40,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 02:04:40,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 02:04:40,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 02:04:40,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 02:04:40,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 02:04:40,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 02:04:40,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 02:04:40,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 02:04:40,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 02:04:40,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 02:04:40,847 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 02:04:40,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 02:04:40,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 02:04:40,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 02:04:40,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 02:04:40,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 02:04:40,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 02:04:40,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 02:04:40,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 02:04:40,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 02:04:40,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 02:04:40,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 02:04:40,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 02:04:40,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 02:04:40,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 02:04:40,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 02:04:40,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 02:04:40,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 02:04:40,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 02:04:40,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 02:04:40,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 02:04:40,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 02:04:40,885 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 02:04:40,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 02:04:40,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 02:04:40,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 02:04:40,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 02:04:40,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 02:04:40,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 02:04:40,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 02:04:40,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 02:04:40,910 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 02:04:40,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 02:04:40,911 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 02:04:40,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 02:04:40,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 02:04:40,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 02:04:40,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 02:04:40,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 02:04:40,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 02:04:40,912 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 02:04:40,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 02:04:40,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 02:04:40,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 02:04:40,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 02:04:40,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 02:04:40,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 02:04:40,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 02:04:40,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 02:04:40,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 02:04:40,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 02:04:40,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 02:04:40,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 02:04:40,914 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 02:04:40,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 02:04:40,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 02:04:40,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bb6c46a4de77c33ebd5db0d25fe513601ef52929336922ed8d1cb2e429dd77c [2022-07-21 02:04:41,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 02:04:41,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 02:04:41,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 02:04:41,210 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 02:04:41,211 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 02:04:41,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2022-07-21 02:04:41,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eafa6a97/91ea655761bb4e9fb2957de33eeaa0fd/FLAG4fadb01e9 [2022-07-21 02:04:41,689 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 02:04:41,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2022-07-21 02:04:41,704 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eafa6a97/91ea655761bb4e9fb2957de33eeaa0fd/FLAG4fadb01e9 [2022-07-21 02:04:41,716 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eafa6a97/91ea655761bb4e9fb2957de33eeaa0fd [2022-07-21 02:04:41,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 02:04:41,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 02:04:41,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 02:04:41,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 02:04:41,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 02:04:41,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:04:41" (1/1) ... [2022-07-21 02:04:41,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618074bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:41, skipping insertion in model container [2022-07-21 02:04:41,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:04:41" (1/1) ... [2022-07-21 02:04:41,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 02:04:41,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 02:04:41,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2022-07-21 02:04:41,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 02:04:42,001 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 02:04:42,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2022-07-21 02:04:42,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 02:04:42,077 INFO L208 MainTranslator]: Completed translation [2022-07-21 02:04:42,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42 WrapperNode [2022-07-21 02:04:42,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 02:04:42,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 02:04:42,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 02:04:42,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 02:04:42,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42" (1/1) ... [2022-07-21 02:04:42,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42" (1/1) ... [2022-07-21 02:04:42,135 INFO L137 Inliner]: procedures = 119, calls = 39, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 121 [2022-07-21 02:04:42,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 02:04:42,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 02:04:42,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 02:04:42,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 02:04:42,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42" (1/1) ... [2022-07-21 02:04:42,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42" (1/1) ... [2022-07-21 02:04:42,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42" (1/1) ... [2022-07-21 02:04:42,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42" (1/1) ... [2022-07-21 02:04:42,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42" (1/1) ... [2022-07-21 02:04:42,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42" (1/1) ... [2022-07-21 02:04:42,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42" (1/1) ... [2022-07-21 02:04:42,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 02:04:42,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 02:04:42,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 02:04:42,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 02:04:42,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42" (1/1) ... [2022-07-21 02:04:42,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 02:04:42,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:04:42,227 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) [2022-07-21 02:04:42,240 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 [2022-07-21 02:04:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 02:04:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 02:04:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 02:04:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 02:04:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 02:04:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 02:04:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 02:04:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 02:04:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 02:04:42,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 02:04:42,387 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 02:04:42,388 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 02:04:42,597 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 02:04:42,601 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 02:04:42,603 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-21 02:04:42,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:04:42 BoogieIcfgContainer [2022-07-21 02:04:42,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 02:04:42,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 02:04:42,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 02:04:42,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 02:04:42,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:04:41" (1/3) ... [2022-07-21 02:04:42,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae151e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:04:42, skipping insertion in model container [2022-07-21 02:04:42,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:04:42" (2/3) ... [2022-07-21 02:04:42,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae151e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:04:42, skipping insertion in model container [2022-07-21 02:04:42,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:04:42" (3/3) ... [2022-07-21 02:04:42,610 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue-1.i [2022-07-21 02:04:42,620 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 02:04:42,620 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 02:04:42,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 02:04:42,668 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@34282274, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5cc38ed3 [2022-07-21 02:04:42,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 02:04:42,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.72) internal successors, (43), 26 states have internal predecessors, (43), 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) [2022-07-21 02:04:42,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-21 02:04:42,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:04:42,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:04:42,689 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:04:42,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:04:42,694 INFO L85 PathProgramCache]: Analyzing trace with hash -893663255, now seen corresponding path program 1 times [2022-07-21 02:04:42,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:04:42,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930262257] [2022-07-21 02:04:42,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:04:42,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:04:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:04:42,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:04:42,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:04:42,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930262257] [2022-07-21 02:04:42,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930262257] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 02:04:42,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 02:04:42,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 02:04:42,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353334361] [2022-07-21 02:04:42,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 02:04:42,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 02:04:42,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:04:42,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 02:04:42,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 02:04:42,896 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.72) internal successors, (43), 26 states have internal predecessors, (43), 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) [2022-07-21 02:04:42,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:04:42,908 INFO L93 Difference]: Finished difference Result 49 states and 78 transitions. [2022-07-21 02:04:42,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 02:04:42,910 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 [2022-07-21 02:04:42,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:04:42,915 INFO L225 Difference]: With dead ends: 49 [2022-07-21 02:04:42,915 INFO L226 Difference]: Without dead ends: 20 [2022-07-21 02:04:42,917 INFO L412 NwaCegarLoop]: 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 [2022-07-21 02:04:42,919 INFO L413 NwaCegarLoop]: 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 [2022-07-21 02:04:42,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 02:04:42,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-07-21 02:04:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-07-21 02:04:42,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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) [2022-07-21 02:04:42,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-07-21 02:04:42,939 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 11 [2022-07-21 02:04:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:04:42,939 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-07-21 02:04:42,940 INFO L496 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) [2022-07-21 02:04:42,940 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-07-21 02:04:42,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 02:04:42,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:04:42,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:04:42,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 02:04:42,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:04:42,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:04:42,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1702731784, now seen corresponding path program 1 times [2022-07-21 02:04:42,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:04:42,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513487800] [2022-07-21 02:04:42,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:04:42,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:04:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 02:04:42,976 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 02:04:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 02:04:43,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 02:04:43,011 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 02:04:43,012 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 02:04:43,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 02:04:43,015 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 02:04:43,018 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 02:04:43,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 02:04:43 BoogieIcfgContainer [2022-07-21 02:04:43,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 02:04:43,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 02:04:43,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 02:04:43,035 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 02:04:43,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:04:42" (3/4) ... [2022-07-21 02:04:43,042 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 02:04:43,084 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 02:04:43,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 02:04:43,085 INFO L158 Benchmark]: Toolchain (without parser) took 1365.81ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 28.5MB in the beginning and 50.4MB in the end (delta: -22.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-07-21 02:04:43,086 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory was 33.6MB in the beginning and 33.6MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 02:04:43,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.83ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 28.3MB in the beginning and 47.8MB in the end (delta: -19.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-07-21 02:04:43,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.51ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 45.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 02:04:43,087 INFO L158 Benchmark]: Boogie Preprocessor took 49.89ms. Allocated memory is still 71.3MB. Free memory was 45.8MB in the beginning and 44.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 02:04:43,087 INFO L158 Benchmark]: RCFGBuilder took 416.94ms. Allocated memory is still 71.3MB. Free memory was 44.1MB in the beginning and 41.9MB in the end (delta: 2.2MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-07-21 02:04:43,087 INFO L158 Benchmark]: TraceAbstraction took 428.55ms. Allocated memory is still 71.3MB. Free memory was 41.3MB in the beginning and 31.9MB in the end (delta: 9.5MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-07-21 02:04:43,088 INFO L158 Benchmark]: Witness Printer took 49.85ms. Allocated memory is still 71.3MB. Free memory was 31.9MB in the beginning and 50.4MB in the end (delta: -18.6MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-07-21 02:04:43,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory was 33.6MB in the beginning and 33.6MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.83ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 28.3MB in the beginning and 47.8MB in the end (delta: -19.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.51ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 45.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.89ms. Allocated memory is still 71.3MB. Free memory was 45.8MB in the beginning and 44.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.94ms. Allocated memory is still 71.3MB. Free memory was 44.1MB in the beginning and 41.9MB in the end (delta: 2.2MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * TraceAbstraction took 428.55ms. Allocated memory is still 71.3MB. Free memory was 41.3MB in the beginning and 31.9MB in the end (delta: 9.5MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Witness Printer took 49.85ms. Allocated memory is still 71.3MB. Free memory was 31.9MB in the beginning and 50.4MB in the end (delta: -18.6MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * 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: 1063]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1000] SLL* head = malloc(sizeof(SLL)); [L1001] head->next = ((void*)0) [L1002] head->prev = ((void*)0) [L1003] head->data = 0 [L1005] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1008] COND FALSE !(__VERIFIER_nondet_int()) [L1019] COND TRUE __VERIFIER_nondet_int() [L1020] x = malloc(sizeof(SLL)) [L1021] x->data = 1 [L1022] x->next = head [L1023] x->prev = ((void*)0) [L1024] head = x VAL [head={-2:0}, x={-2:0}] [L1050] x = head VAL [head={-2:0}, x={-2:0}] [L1053] EXPR x->data VAL [head={-2:0}, x={-2:0}, x->data=1] [L1053] COND FALSE !(x->data != 1) [L1059] EXPR x->next [L1059] x = x->next [L1060] COND TRUE \read(*x) [L1062] EXPR x->data VAL [head={-2:0}, x={-1:0}, x->data=0] [L1062] COND TRUE x->data != 1 [L1063] reach_error() VAL [head={-2:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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! [2022-07-21 02:04:43,123 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE