./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test29-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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/ldv-regression/test29-1.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 787d3b2fa11dec769df3d46659aa468e143e27411fdb13355e30ec6b3ce36b2e --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:28:13,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:28:13,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:28:13,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:28:13,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:28:13,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:28:13,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:28:13,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:28:13,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:28:13,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:28:13,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:28:13,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:28:13,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:28:13,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:28:13,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:28:13,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:28:13,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:28:13,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:28:13,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:28:13,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:28:13,808 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:28:13,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:28:13,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:28:13,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:28:13,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:28:13,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:28:13,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:28:13,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:28:13,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:28:13,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:28:13,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:28:13,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:28:13,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:28:13,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:28:13,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:28:13,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:28:13,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:28:13,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:28:13,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:28:13,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:28:13,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:28:13,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:28:13,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 14:28:13,857 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:28:13,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:28:13,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:28:13,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:28:13,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:28:13,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:28:13,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:28:13,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:28:13,860 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:28:13,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:28:13,861 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:28:13,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 14:28:13,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:28:13,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:28:13,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:28:13,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:28:13,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:28:13,863 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:28:13,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:28:13,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:28:13,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:28:13,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:28:13,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:28:13,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:28:13,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:28:13,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:28:13,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:28:13,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:28:13,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 14:28:13,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 14:28:13,866 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:28:13,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:28:13,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:28:13,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 787d3b2fa11dec769df3d46659aa468e143e27411fdb13355e30ec6b3ce36b2e [2022-07-19 14:28:14,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:28:14,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:28:14,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:28:14,127 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:28:14,128 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:28:14,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test29-1.c [2022-07-19 14:28:14,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd407492/ff84549dbe1b46889ae129d4e023cdce/FLAGc618ffbfd [2022-07-19 14:28:14,540 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:28:14,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test29-1.c [2022-07-19 14:28:14,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd407492/ff84549dbe1b46889ae129d4e023cdce/FLAGc618ffbfd [2022-07-19 14:28:14,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd407492/ff84549dbe1b46889ae129d4e023cdce [2022-07-19 14:28:14,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:28:14,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:28:14,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:28:14,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:28:14,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:28:14,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7faecc30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14, skipping insertion in model container [2022-07-19 14:28:14,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:28:14,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:28:14,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test29-1.c[614,627] [2022-07-19 14:28:14,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:28:14,774 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:28:14,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test29-1.c[614,627] [2022-07-19 14:28:14,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:28:14,807 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:28:14,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14 WrapperNode [2022-07-19 14:28:14,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:28:14,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:28:14,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:28:14,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:28:14,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,842 INFO L137 Inliner]: procedures = 13, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-07-19 14:28:14,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:28:14,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:28:14,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:28:14,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:28:14,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:28:14,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:28:14,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:28:14,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:28:14,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14" (1/1) ... [2022-07-19 14:28:14,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:28:14,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:28:14,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 14:28:14,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 14:28:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:28:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 14:28:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:28:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 14:28:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:28:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:28:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 14:28:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:28:14,968 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:28:14,969 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:28:15,061 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:28:15,065 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:28:15,066 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 14:28:15,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:28:15 BoogieIcfgContainer [2022-07-19 14:28:15,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:28:15,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:28:15,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:28:15,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:28:15,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:28:14" (1/3) ... [2022-07-19 14:28:15,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a95dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:28:15, skipping insertion in model container [2022-07-19 14:28:15,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:28:14" (2/3) ... [2022-07-19 14:28:15,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a95dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:28:15, skipping insertion in model container [2022-07-19 14:28:15,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:28:15" (3/3) ... [2022-07-19 14:28:15,102 INFO L111 eAbstractionObserver]: Analyzing ICFG test29-1.c [2022-07-19 14:28:15,114 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:28:15,122 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:28:15,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:28:15,182 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@540186f6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@367b831 [2022-07-19 14:28:15,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:28:15,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:28:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 14:28:15,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:28:15,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:28:15,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:28:15,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:28:15,210 INFO L85 PathProgramCache]: Analyzing trace with hash -594068692, now seen corresponding path program 1 times [2022-07-19 14:28:15,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:28:15,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96701566] [2022-07-19 14:28:15,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:28:15,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:28:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:28:15,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:28:15,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:28:15,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96701566] [2022-07-19 14:28:15,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96701566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:28:15,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:28:15,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 14:28:15,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10160947] [2022-07-19 14:28:15,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:28:15,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 14:28:15,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:28:15,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 14:28:15,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:28:15,447 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:28:15,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:28:15,526 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2022-07-19 14:28:15,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 14:28:15,529 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2022-07-19 14:28:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:28:15,535 INFO L225 Difference]: With dead ends: 25 [2022-07-19 14:28:15,536 INFO L226 Difference]: Without dead ends: 10 [2022-07-19 14:28:15,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:28:15,542 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 18 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:28:15,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 18 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:28:15,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-07-19 14:28:15,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-07-19 14:28:15,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:28:15,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-07-19 14:28:15,570 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2022-07-19 14:28:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:28:15,570 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-07-19 14:28:15,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:28:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-07-19 14:28:15,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 14:28:15,572 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:28:15,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:28:15,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 14:28:15,574 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:28:15,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:28:15,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1182785712, now seen corresponding path program 1 times [2022-07-19 14:28:15,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:28:15,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000460561] [2022-07-19 14:28:15,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:28:15,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:28:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:28:15,613 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 14:28:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:28:15,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 14:28:15,645 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 14:28:15,647 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:28:15,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 14:28:15,652 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 14:28:15,656 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:28:15,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:28:15 BoogieIcfgContainer [2022-07-19 14:28:15,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:28:15,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:28:15,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:28:15,679 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:28:15,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:28:15" (3/4) ... [2022-07-19 14:28:15,681 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 14:28:15,709 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 14:28:15,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:28:15,710 INFO L158 Benchmark]: Toolchain (without parser) took 1151.44ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.2MB in the beginning and 84.5MB in the end (delta: -18.3MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2022-07-19 14:28:15,711 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory was 51.8MB in the beginning and 51.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:28:15,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.55ms. Allocated memory is still 98.6MB. Free memory was 66.0MB in the beginning and 74.7MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 14:28:15,712 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.07ms. Allocated memory is still 98.6MB. Free memory was 74.7MB in the beginning and 73.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:28:15,712 INFO L158 Benchmark]: Boogie Preprocessor took 14.48ms. Allocated memory is still 98.6MB. Free memory was 73.0MB in the beginning and 72.3MB in the end (delta: 730.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:28:15,713 INFO L158 Benchmark]: RCFGBuilder took 209.75ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 62.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 14:28:15,713 INFO L158 Benchmark]: TraceAbstraction took 602.94ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.2MB in the beginning and 86.6MB in the end (delta: -24.4MB). Peak memory consumption was 103.3kB. Max. memory is 16.1GB. [2022-07-19 14:28:15,714 INFO L158 Benchmark]: Witness Printer took 31.12ms. Allocated memory is still 119.5MB. Free memory was 86.6MB in the beginning and 84.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:28:15,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory was 51.8MB in the beginning and 51.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.55ms. Allocated memory is still 98.6MB. Free memory was 66.0MB in the beginning and 74.7MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.07ms. Allocated memory is still 98.6MB. Free memory was 74.7MB in the beginning and 73.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.48ms. Allocated memory is still 98.6MB. Free memory was 73.0MB in the beginning and 72.3MB in the end (delta: 730.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 209.75ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 62.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 602.94ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.2MB in the beginning and 86.6MB in the end (delta: -24.4MB). Peak memory consumption was 103.3kB. Max. memory is 16.1GB. * Witness Printer took 31.12ms. Allocated memory is still 119.5MB. Free memory was 86.6MB in the beginning and 84.5MB in the end (delta: 2.0MB). 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 - CounterExampleResult [Line: 30]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] union dummy d1, d2; [L16] int n = __VERIFIER_nondet_int(); [L17] EXPR n ? &d1 : &d2 VAL [d1={5:0}, d2={6:0}, n=0, n ? &d1 : &d2={6:0}] [L17] union dummy *pd = n ? &d1 : &d2; [L18] d1.a = __VERIFIER_nondet_int() [L19] COND FALSE !(pd == &d1) [L22] pd->b = 0 VAL [d1={5:0}, d2={6:0}, n=0, pd={6:0}] [L24] pd == &d2 && d1.a != 0 [L24] EXPR d1.a [L24] pd == &d2 && d1.a != 0 VAL [d1={5:0}, d1.a=-1, d2={6:0}, n=0, pd={6:0}, pd == &d2 && d1.a != 0=1] [L24] COND TRUE pd == &d2 && d1.a != 0 [L30] reach_error() VAL [d1={5:0}, d2={6:0}, n=0, pd={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 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, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 6 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-19 14:28:15,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE