./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/trex04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a31fd051 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/loops/trex04.c -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 f70ffe9cd45c37f44e9e780e31340fab45b6a2fb7f7ef23a2d90faf4241229d6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 10:57:59,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 10:57:59,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 10:57:59,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 10:57:59,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 10:57:59,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 10:57:59,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 10:57:59,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 10:57:59,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 10:57:59,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 10:57:59,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 10:57:59,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 10:57:59,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 10:57:59,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 10:57:59,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 10:57:59,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 10:57:59,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 10:57:59,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 10:57:59,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 10:57:59,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 10:57:59,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 10:57:59,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 10:57:59,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 10:57:59,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 10:57:59,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 10:57:59,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 10:57:59,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 10:57:59,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 10:57:59,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 10:57:59,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 10:57:59,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 10:57:59,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 10:57:59,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 10:57:59,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 10:57:59,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 10:57:59,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 10:57:59,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 10:57:59,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 10:57:59,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 10:57:59,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 10:57:59,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 10:57:59,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 10:57:59,906 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 10:57:59,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 10:57:59,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 10:57:59,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 10:57:59,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 10:57:59,907 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 10:57:59,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 10:57:59,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 10:57:59,908 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 10:57:59,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 10:57:59,909 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 10:57:59,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 10:57:59,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 10:57:59,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 10:57:59,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 10:57:59,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 10:57:59,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 10:57:59,910 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 10:57:59,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 10:57:59,910 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 10:57:59,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 10:57:59,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 10:57:59,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 10:57:59,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 10:57:59,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:57:59,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 10:57:59,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 10:57:59,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 10:57:59,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 10:57:59,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 10:57:59,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 10:57:59,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 10:57:59,912 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 10:57:59,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 10:57:59,913 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 10:57:59,913 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70ffe9cd45c37f44e9e780e31340fab45b6a2fb7f7ef23a2d90faf4241229d6 [2023-02-15 10:58:00,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 10:58:00,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 10:58:00,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 10:58:00,148 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 10:58:00,148 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 10:58:00,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/trex04.c [2023-02-15 10:58:01,038 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 10:58:01,213 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 10:58:01,213 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/trex04.c [2023-02-15 10:58:01,217 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0f6d1fc/729a1551fe3e4251a3c4b7d609ca9afe/FLAGe43f40cd3 [2023-02-15 10:58:01,646 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0f6d1fc/729a1551fe3e4251a3c4b7d609ca9afe [2023-02-15 10:58:01,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 10:58:01,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 10:58:01,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 10:58:01,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 10:58:01,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 10:58:01,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8e02e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01, skipping insertion in model container [2023-02-15 10:58:01,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 10:58:01,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 10:58:01,749 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/trex04.c[405,418] [2023-02-15 10:58:01,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:58:01,764 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 10:58:01,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/trex04.c[405,418] [2023-02-15 10:58:01,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:58:01,785 INFO L208 MainTranslator]: Completed translation [2023-02-15 10:58:01,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01 WrapperNode [2023-02-15 10:58:01,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 10:58:01,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 10:58:01,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 10:58:01,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 10:58:01,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,822 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2023-02-15 10:58:01,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 10:58:01,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 10:58:01,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 10:58:01,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 10:58:01,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,860 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 10:58:01,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 10:58:01,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 10:58:01,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 10:58:01,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (1/1) ... [2023-02-15 10:58:01,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:58:01,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:58:01,907 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) [2023-02-15 10:58:01,909 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 [2023-02-15 10:58:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 10:58:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-02-15 10:58:01,966 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-02-15 10:58:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 10:58:01,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 10:58:01,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 10:58:02,009 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 10:58:02,012 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 10:58:02,163 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 10:58:02,167 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 10:58:02,167 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 10:58:02,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:58:02 BoogieIcfgContainer [2023-02-15 10:58:02,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 10:58:02,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 10:58:02,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 10:58:02,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 10:58:02,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:58:01" (1/3) ... [2023-02-15 10:58:02,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e8e36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:58:02, skipping insertion in model container [2023-02-15 10:58:02,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:01" (2/3) ... [2023-02-15 10:58:02,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e8e36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:58:02, skipping insertion in model container [2023-02-15 10:58:02,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:58:02" (3/3) ... [2023-02-15 10:58:02,174 INFO L112 eAbstractionObserver]: Analyzing ICFG trex04.c [2023-02-15 10:58:02,184 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 10:58:02,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 10:58:02,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 10:58:02,255 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@10b5c3dc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 10:58:02,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 10:58:02,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 22 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 10:58:02,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 10:58:02,265 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:58:02,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:58:02,266 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:58:02,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:58:02,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2130634668, now seen corresponding path program 1 times [2023-02-15 10:58:02,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:58:02,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971241418] [2023-02-15 10:58:02,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:58:02,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:58:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:58:02,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:58:02,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:58:02,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971241418] [2023-02-15 10:58:02,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971241418] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:58:02,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:58:02,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 10:58:02,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629343197] [2023-02-15 10:58:02,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:58:02,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 10:58:02,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:58:02,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 10:58:02,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 10:58:02,488 INFO L87 Difference]: Start difference. First operand has 24 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 22 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 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 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-02-15 10:58:02,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:58:02,523 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2023-02-15 10:58:02,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 10:58:02,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2023-02-15 10:58:02,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:58:02,528 INFO L225 Difference]: With dead ends: 33 [2023-02-15 10:58:02,528 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 10:58:02,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 10:58:02,532 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 9 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:58:02,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 79 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:58:02,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 10:58:02,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 10:58:02,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-02-15 10:58:02,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 10:58:02,547 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-02-15 10:58:02,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:58:02,548 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 10:58:02,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-02-15 10:58:02,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 10:58:02,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 10:58:02,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 10:58:02,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 10:58:02,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 10:58:02,562 INFO L899 garLoopResultBuilder]: For program point fooEXIT(lines 18 25) no Hoare annotation was computed. [2023-02-15 10:58:02,563 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-02-15 10:58:02,563 INFO L899 garLoopResultBuilder]: For program point L23-1(lines 18 25) no Hoare annotation was computed. [2023-02-15 10:58:02,563 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 19 25) no Hoare annotation was computed. [2023-02-15 10:58:02,563 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 18 25) the Hoare annotation is: true [2023-02-15 10:58:02,563 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2023-02-15 10:58:02,563 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-02-15 10:58:02,564 INFO L902 garLoopResultBuilder]: At program point L27(lines 27 48) the Hoare annotation is: true [2023-02-15 10:58:02,564 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-02-15 10:58:02,564 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 10:58:02,564 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 10:58:02,564 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2023-02-15 10:58:02,564 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 10:58:02,565 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 10:58:02,565 INFO L902 garLoopResultBuilder]: At program point L42-1(lines 42 45) the Hoare annotation is: true [2023-02-15 10:58:02,565 INFO L899 garLoopResultBuilder]: For program point L42-2(lines 42 45) no Hoare annotation was computed. [2023-02-15 10:58:02,565 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-02-15 10:58:02,565 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 28 48) no Hoare annotation was computed. [2023-02-15 10:58:02,565 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed. [2023-02-15 10:58:02,566 INFO L895 garLoopResultBuilder]: At program point L10-2(lines 9 14) the Hoare annotation is: (and (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= |ULTIMATE.start_main_~x~0#1| 0)) [2023-02-15 10:58:02,566 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-02-15 10:58:02,566 INFO L902 garLoopResultBuilder]: At program point L39-1(line 39) the Hoare annotation is: true [2023-02-15 10:58:02,566 INFO L899 garLoopResultBuilder]: For program point L39-3(lines 28 48) no Hoare annotation was computed. [2023-02-15 10:58:02,566 INFO L902 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: true [2023-02-15 10:58:02,568 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-02-15 10:58:02,570 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 10:58:02,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 10:58:02 BoogieIcfgContainer [2023-02-15 10:58:02,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 10:58:02,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 10:58:02,580 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 10:58:02,580 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 10:58:02,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:58:02" (3/4) ... [2023-02-15 10:58:02,583 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 10:58:02,586 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2023-02-15 10:58:02,589 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-15 10:58:02,589 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-02-15 10:58:02,589 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 10:58:02,589 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 10:58:02,619 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 10:58:02,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 10:58:02,620 INFO L158 Benchmark]: Toolchain (without parser) took 970.70ms. Allocated memory is still 136.3MB. Free memory was 102.6MB in the beginning and 107.2MB in the end (delta: -4.5MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. [2023-02-15 10:58:02,620 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 113.2MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 10:58:02,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 135.91ms. Allocated memory is still 136.3MB. Free memory was 102.2MB in the beginning and 91.9MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 10:58:02,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.63ms. Allocated memory is still 136.3MB. Free memory was 91.9MB in the beginning and 90.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 10:58:02,621 INFO L158 Benchmark]: Boogie Preprocessor took 40.74ms. Allocated memory is still 136.3MB. Free memory was 90.7MB in the beginning and 89.4MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-15 10:58:02,621 INFO L158 Benchmark]: RCFGBuilder took 301.82ms. Allocated memory is still 136.3MB. Free memory was 89.4MB in the beginning and 77.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 10:58:02,622 INFO L158 Benchmark]: TraceAbstraction took 409.84ms. Allocated memory is still 136.3MB. Free memory was 76.8MB in the beginning and 47.9MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-02-15 10:58:02,622 INFO L158 Benchmark]: Witness Printer took 39.25ms. Allocated memory is still 136.3MB. Free memory was 47.9MB in the beginning and 107.2MB in the end (delta: -59.3MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2023-02-15 10:58:02,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 113.2MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 135.91ms. Allocated memory is still 136.3MB. Free memory was 102.2MB in the beginning and 91.9MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.63ms. Allocated memory is still 136.3MB. Free memory was 91.9MB in the beginning and 90.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.74ms. Allocated memory is still 136.3MB. Free memory was 90.7MB in the beginning and 89.4MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 301.82ms. Allocated memory is still 136.3MB. Free memory was 89.4MB in the beginning and 77.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 409.84ms. Allocated memory is still 136.3MB. Free memory was 76.8MB in the beginning and 47.9MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 39.25ms. Allocated memory is still 136.3MB. Free memory was 47.9MB in the beginning and 107.2MB in the end (delta: -59.3MB). Peak memory consumption was 4.7MB. 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 - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 10 NumberOfFragments, 13 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: !(cond == 0) && x <= 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-02-15 10:58:02,641 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 Result: TRUE