./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/while_infinite_loop_2.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/while_infinite_loop_2.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 2285a0532f76c71ed3da856eea9f62f11be9df4ff1d205bf57c17e8ec94f6df8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 10:58:33,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 10:58:33,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 10:58:33,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 10:58:33,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 10:58:33,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 10:58:33,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 10:58:33,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 10:58:33,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 10:58:33,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 10:58:33,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 10:58:33,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 10:58:33,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 10:58:33,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 10:58:33,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 10:58:33,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 10:58:33,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 10:58:33,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 10:58:33,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 10:58:33,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 10:58:33,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 10:58:33,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 10:58:33,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 10:58:33,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 10:58:33,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 10:58:33,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 10:58:33,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 10:58:33,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 10:58:33,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 10:58:33,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 10:58:33,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 10:58:33,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 10:58:33,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 10:58:33,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 10:58:33,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 10:58:33,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 10:58:33,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 10:58:33,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 10:58:33,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 10:58:33,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 10:58:33,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 10:58:33,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 10:58:33,982 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 10:58:33,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 10:58:33,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 10:58:33,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 10:58:33,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 10:58:33,984 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 10:58:33,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 10:58:33,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 10:58:33,985 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 10:58:33,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 10:58:33,986 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 10:58:33,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 10:58:33,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 10:58:33,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 10:58:33,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 10:58:33,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 10:58:33,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 10:58:33,987 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 10:58:33,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 10:58:33,987 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 10:58:33,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 10:58:33,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 10:58:33,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 10:58:33,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 10:58:33,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:58:33,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 10:58:33,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 10:58:33,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 10:58:33,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 10:58:33,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 10:58:33,990 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 10:58:33,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 10:58:33,990 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 10:58:33,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 10:58:33,990 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 10:58:33,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2285a0532f76c71ed3da856eea9f62f11be9df4ff1d205bf57c17e8ec94f6df8 [2023-02-15 10:58:34,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 10:58:34,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 10:58:34,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 10:58:34,259 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 10:58:34,259 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 10:58:34,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/while_infinite_loop_2.c [2023-02-15 10:58:35,363 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 10:58:35,531 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 10:58:35,532 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/while_infinite_loop_2.c [2023-02-15 10:58:35,546 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ff2f0ee9/f32ba87f897e4389a49a14b74a5d05bc/FLAGbfc0699b0 [2023-02-15 10:58:35,564 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ff2f0ee9/f32ba87f897e4389a49a14b74a5d05bc [2023-02-15 10:58:35,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 10:58:35,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 10:58:35,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 10:58:35,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 10:58:35,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 10:58:35,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4876d00e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35, skipping insertion in model container [2023-02-15 10:58:35,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 10:58:35,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 10:58:35,699 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/while_infinite_loop_2.c[333,346] [2023-02-15 10:58:35,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:58:35,723 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 10:58:35,735 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/while_infinite_loop_2.c[333,346] [2023-02-15 10:58:35,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:58:35,750 INFO L208 MainTranslator]: Completed translation [2023-02-15 10:58:35,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35 WrapperNode [2023-02-15 10:58:35,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 10:58:35,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 10:58:35,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 10:58:35,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 10:58:35,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,778 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2023-02-15 10:58:35,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 10:58:35,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 10:58:35,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 10:58:35,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 10:58:35,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,796 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 10:58:35,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 10:58:35,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 10:58:35,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 10:58:35,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (1/1) ... [2023-02-15 10:58:35,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:58:35,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:58:35,834 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 10:58:35,862 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 10:58:35,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 10:58:35,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 10:58:35,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 10:58:35,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 10:58:35,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-15 10:58:35,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-15 10:58:35,932 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 10:58:35,934 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 10:58:35,999 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 10:58:36,004 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 10:58:36,004 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 10:58:36,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:58:36 BoogieIcfgContainer [2023-02-15 10:58:36,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 10:58:36,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 10:58:36,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 10:58:36,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 10:58:36,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:58:35" (1/3) ... [2023-02-15 10:58:36,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581c80d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:58:36, skipping insertion in model container [2023-02-15 10:58:36,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:35" (2/3) ... [2023-02-15 10:58:36,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581c80d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:58:36, skipping insertion in model container [2023-02-15 10:58:36,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:58:36" (3/3) ... [2023-02-15 10:58:36,014 INFO L112 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_2.c [2023-02-15 10:58:36,028 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 10:58:36,028 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 10:58:36,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 10:58:36,072 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;@36b16d2a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 10:58:36,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 10:58:36,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 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 10:58:36,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 10:58:36,090 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:58:36,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:58:36,091 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:58:36,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:58:36,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1809383387, now seen corresponding path program 1 times [2023-02-15 10:58:36,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:58:36,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178177058] [2023-02-15 10:58:36,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:58:36,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:58:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:58:36,215 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 10:58:36,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:58:36,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178177058] [2023-02-15 10:58:36,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178177058] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:58:36,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:58:36,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 10:58:36,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423256754] [2023-02-15 10:58:36,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:58:36,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 10:58:36,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:58:36,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 10:58:36,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 10:58:36,251 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:58:36,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:58:36,271 INFO L93 Difference]: Finished difference Result 22 states and 29 transitions. [2023-02-15 10:58:36,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 10:58:36,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 10:58:36,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:58:36,279 INFO L225 Difference]: With dead ends: 22 [2023-02-15 10:58:36,279 INFO L226 Difference]: Without dead ends: 10 [2023-02-15 10:58:36,282 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 [2023-02-15 10:58:36,288 INFO L413 NwaCegarLoop]: 10 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, 10 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 [2023-02-15 10:58:36,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:58:36,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-02-15 10:58:36,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-02-15 10:58:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 10:58:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-02-15 10:58:36,320 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2023-02-15 10:58:36,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:58:36,321 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-02-15 10:58:36,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:58:36,322 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-02-15 10:58:36,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 10:58:36,323 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:58:36,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:58:36,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 10:58:36,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:58:36,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:58:36,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1811170847, now seen corresponding path program 1 times [2023-02-15 10:58:36,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:58:36,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475430416] [2023-02-15 10:58:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:58:36,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:58:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:58:36,458 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 10:58:36,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:58:36,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475430416] [2023-02-15 10:58:36,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475430416] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:58:36,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:58:36,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 10:58:36,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968101422] [2023-02-15 10:58:36,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:58:36,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 10:58:36,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:58:36,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 10:58:36,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 10:58:36,463 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:58:36,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:58:36,487 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2023-02-15 10:58:36,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 10:58:36,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 10:58:36,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:58:36,488 INFO L225 Difference]: With dead ends: 10 [2023-02-15 10:58:36,489 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 10:58:36,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 10:58:36,490 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:58:36,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:58:36,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 10:58:36,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 10:58:36,492 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 10:58:36,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 10:58:36,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2023-02-15 10:58:36,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:58:36,497 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 10:58:36,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:58:36,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 10:58:36,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 10:58:36,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 10:58:36,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 10:58:36,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 10:58:36,531 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 10:58:36,532 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 10:58:36,532 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 10:58:36,532 INFO L899 garLoopResultBuilder]: For program point L19(lines 11 20) no Hoare annotation was computed. [2023-02-15 10:58:36,532 INFO L895 garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (= |ULTIMATE.start_main_~x~0#1| 0) [2023-02-15 10:58:36,532 INFO L895 garLoopResultBuilder]: At program point L16-1(lines 14 17) the Hoare annotation is: (= |ULTIMATE.start_main_~x~0#1| 0) [2023-02-15 10:58:36,533 INFO L895 garLoopResultBuilder]: At program point L14-2(lines 14 17) the Hoare annotation is: false [2023-02-15 10:58:36,533 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 10:58:36,533 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2023-02-15 10:58:36,533 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5 10) the Hoare annotation is: true [2023-02-15 10:58:36,533 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2023-02-15 10:58:36,533 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2023-02-15 10:58:36,533 INFO L899 garLoopResultBuilder]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2023-02-15 10:58:36,534 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2023-02-15 10:58:36,537 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-15 10:58:36,539 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 10:58:36,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 10:58:36 BoogieIcfgContainer [2023-02-15 10:58:36,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 10:58:36,551 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 10:58:36,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 10:58:36,551 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 10:58:36,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:58:36" (3/4) ... [2023-02-15 10:58:36,555 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 10:58:36,560 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-15 10:58:36,565 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-02-15 10:58:36,565 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 10:58:36,565 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 10:58:36,565 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 10:58:36,617 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 10:58:36,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 10:58:36,618 INFO L158 Benchmark]: Toolchain (without parser) took 1049.98ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 79.2MB in the beginning and 108.4MB in the end (delta: -29.1MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2023-02-15 10:58:36,618 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory was 89.8MB in the beginning and 89.8MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 10:58:36,619 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.06ms. Allocated memory is still 123.7MB. Free memory was 78.9MB in the beginning and 69.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 10:58:36,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.80ms. Allocated memory is still 123.7MB. Free memory was 69.2MB in the beginning and 67.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 10:58:36,620 INFO L158 Benchmark]: Boogie Preprocessor took 22.71ms. Allocated memory is still 123.7MB. Free memory was 67.9MB in the beginning and 66.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 10:58:36,620 INFO L158 Benchmark]: RCFGBuilder took 203.62ms. Allocated memory is still 123.7MB. Free memory was 66.7MB in the beginning and 58.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 10:58:36,621 INFO L158 Benchmark]: TraceAbstraction took 542.46ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 57.5MB in the beginning and 110.6MB in the end (delta: -53.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 10:58:36,621 INFO L158 Benchmark]: Witness Printer took 66.08ms. Allocated memory is still 159.4MB. Free memory was 110.6MB in the beginning and 108.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 10:58:36,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory was 89.8MB in the beginning and 89.8MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.06ms. Allocated memory is still 123.7MB. Free memory was 78.9MB in the beginning and 69.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.80ms. Allocated memory is still 123.7MB. Free memory was 69.2MB in the beginning and 67.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.71ms. Allocated memory is still 123.7MB. Free memory was 67.9MB in the beginning and 66.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 203.62ms. Allocated memory is still 123.7MB. Free memory was 66.7MB in the beginning and 58.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 542.46ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 57.5MB in the beginning and 110.6MB in the end (delta: -53.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 66.08ms. Allocated memory is still 159.4MB. Free memory was 110.6MB in the beginning and 108.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. 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: 7]: 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 15 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 6 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 14]: Loop Invariant Derived loop invariant: x == 0 RESULT: Ultimate proved your program to be correct! [2023-02-15 10:58:36,653 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE