./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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-?-3598765 [2022-07-21 02:03:46,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 02:03:46,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 02:03:46,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 02:03:46,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 02:03:46,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 02:03:46,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 02:03:46,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 02:03:46,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 02:03:46,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 02:03:46,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 02:03:46,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 02:03:46,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 02:03:46,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 02:03:46,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 02:03:46,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 02:03:46,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 02:03:46,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 02:03:46,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 02:03:46,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 02:03:46,233 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 02:03:46,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 02:03:46,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 02:03:46,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 02:03:46,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 02:03:46,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 02:03:46,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 02:03:46,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 02:03:46,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 02:03:46,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 02:03:46,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 02:03:46,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 02:03:46,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 02:03:46,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 02:03:46,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 02:03:46,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 02:03:46,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 02:03:46,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 02:03:46,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 02:03:46,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 02:03:46,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 02:03:46,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 02:03:46,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 02:03:46,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 02:03:46,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 02:03:46,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 02:03:46,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 02:03:46,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 02:03:46,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 02:03:46,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 02:03:46,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 02:03:46,281 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 02:03:46,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 02:03:46,282 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 02:03:46,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 02:03:46,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 02:03:46,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 02:03:46,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 02:03:46,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 02:03:46,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 02:03:46,283 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 02:03:46,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 02:03:46,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 02:03:46,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 02:03:46,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 02:03:46,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 02:03:46,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 02:03:46,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 02:03:46,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 02:03:46,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 02:03:46,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 02:03:46,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 02:03:46,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 02:03:46,289 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 02:03:46,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 02:03:46,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 02:03:46,290 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 787d3b2fa11dec769df3d46659aa468e143e27411fdb13355e30ec6b3ce36b2e [2022-07-21 02:03:46,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 02:03:46,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 02:03:46,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 02:03:46,566 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 02:03:46,567 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 02:03:46,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test29-1.c [2022-07-21 02:03:46,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de74e16b2/459ae07c89654ec1b2468b5bbc429241/FLAGf4f0340f6 [2022-07-21 02:03:46,982 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 02:03:46,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test29-1.c [2022-07-21 02:03:46,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de74e16b2/459ae07c89654ec1b2468b5bbc429241/FLAGf4f0340f6 [2022-07-21 02:03:46,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de74e16b2/459ae07c89654ec1b2468b5bbc429241 [2022-07-21 02:03:46,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 02:03:46,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 02:03:46,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 02:03:46,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 02:03:47,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 02:03:47,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:03:46" (1/1) ... [2022-07-21 02:03:47,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@317c9fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47, skipping insertion in model container [2022-07-21 02:03:47,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:03:46" (1/1) ... [2022-07-21 02:03:47,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 02:03:47,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 02:03:47,103 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] [2022-07-21 02:03:47,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 02:03:47,110 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 02:03:47,126 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] [2022-07-21 02:03:47,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 02:03:47,144 INFO L208 MainTranslator]: Completed translation [2022-07-21 02:03:47,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47 WrapperNode [2022-07-21 02:03:47,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 02:03:47,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 02:03:47,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 02:03:47,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 02:03:47,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47" (1/1) ... [2022-07-21 02:03:47,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47" (1/1) ... [2022-07-21 02:03:47,171 INFO L137 Inliner]: procedures = 13, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-07-21 02:03:47,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 02:03:47,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 02:03:47,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 02:03:47,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 02:03:47,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47" (1/1) ... [2022-07-21 02:03:47,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47" (1/1) ... [2022-07-21 02:03:47,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47" (1/1) ... [2022-07-21 02:03:47,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47" (1/1) ... [2022-07-21 02:03:47,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47" (1/1) ... [2022-07-21 02:03:47,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47" (1/1) ... [2022-07-21 02:03:47,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47" (1/1) ... [2022-07-21 02:03:47,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 02:03:47,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 02:03:47,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 02:03:47,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 02:03:47,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47" (1/1) ... [2022-07-21 02:03:47,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 02:03:47,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 02:03:47,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 02:03:47,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 02:03:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 02:03:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 02:03:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 02:03:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 02:03:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 02:03:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 02:03:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 02:03:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 02:03:47,335 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 02:03:47,337 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 02:03:47,470 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 02:03:47,474 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 02:03:47,474 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 02:03:47,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:03:47 BoogieIcfgContainer [2022-07-21 02:03:47,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 02:03:47,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 02:03:47,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 02:03:47,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 02:03:47,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:03:46" (1/3) ... [2022-07-21 02:03:47,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8da9a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:03:47, skipping insertion in model container [2022-07-21 02:03:47,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:03:47" (2/3) ... [2022-07-21 02:03:47,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8da9a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:03:47, skipping insertion in model container [2022-07-21 02:03:47,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:03:47" (3/3) ... [2022-07-21 02:03:47,481 INFO L111 eAbstractionObserver]: Analyzing ICFG test29-1.c [2022-07-21 02:03:47,507 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 02:03:47,507 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 02:03:47,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 02:03:47,573 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@6aa52830, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@11aef963 [2022-07-21 02:03:47,574 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 02:03:47,578 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) [2022-07-21 02:03:47,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-21 02:03:47,591 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:03:47,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:03:47,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:03:47,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:03:47,601 INFO L85 PathProgramCache]: Analyzing trace with hash -594068692, now seen corresponding path program 1 times [2022-07-21 02:03:47,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:03:47,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827981620] [2022-07-21 02:03:47,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:03:47,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:03:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 02:03:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 02:03:47,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 02:03:47,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827981620] [2022-07-21 02:03:47,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827981620] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 02:03:47,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 02:03:47,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 02:03:47,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716444562] [2022-07-21 02:03:47,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 02:03:47,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 02:03:47,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 02:03:47,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 02:03:47,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 02:03:47,869 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) [2022-07-21 02:03:47,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 02:03:47,931 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2022-07-21 02:03:47,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 02:03:47,934 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 [2022-07-21 02:03:47,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 02:03:47,939 INFO L225 Difference]: With dead ends: 25 [2022-07-21 02:03:47,939 INFO L226 Difference]: Without dead ends: 10 [2022-07-21 02:03:47,944 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 [2022-07-21 02:03:47,947 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 [2022-07-21 02:03:47,948 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] [2022-07-21 02:03:47,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-07-21 02:03:47,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-07-21 02:03:47,971 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) [2022-07-21 02:03:47,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-07-21 02:03:47,972 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2022-07-21 02:03:47,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 02:03:47,973 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-07-21 02:03:47,973 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) [2022-07-21 02:03:47,973 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-07-21 02:03:47,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-21 02:03:47,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 02:03:47,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 02:03:47,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 02:03:47,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 02:03:47,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 02:03:47,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1182785712, now seen corresponding path program 1 times [2022-07-21 02:03:47,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 02:03:47,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732629928] [2022-07-21 02:03:47,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 02:03:47,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 02:03:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 02:03:48,011 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 02:03:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 02:03:48,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 02:03:48,048 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 02:03:48,049 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 02:03:48,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 02:03:48,058 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 02:03:48,061 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 02:03:48,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 02:03:48 BoogieIcfgContainer [2022-07-21 02:03:48,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 02:03:48,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 02:03:48,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 02:03:48,088 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 02:03:48,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:03:47" (3/4) ... [2022-07-21 02:03:48,090 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 02:03:48,124 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 02:03:48,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 02:03:48,125 INFO L158 Benchmark]: Toolchain (without parser) took 1128.23ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 33.4MB in the beginning and 41.6MB in the end (delta: -8.2MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2022-07-21 02:03:48,126 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 29.8MB in the beginning and 29.8MB in the end (delta: 36.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 02:03:48,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 147.14ms. Allocated memory is still 58.7MB. Free memory was 33.3MB in the beginning and 41.8MB in the end (delta: -8.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-07-21 02:03:48,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.62ms. Allocated memory is still 58.7MB. Free memory was 41.7MB in the beginning and 40.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 02:03:48,130 INFO L158 Benchmark]: Boogie Preprocessor took 32.25ms. Allocated memory is still 58.7MB. Free memory was 40.2MB in the beginning and 39.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 02:03:48,131 INFO L158 Benchmark]: RCFGBuilder took 271.27ms. Allocated memory is still 58.7MB. Free memory was 39.2MB in the beginning and 40.9MB in the end (delta: -1.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2022-07-21 02:03:48,131 INFO L158 Benchmark]: TraceAbstraction took 609.72ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 40.6MB in the beginning and 43.4MB in the end (delta: -2.8MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2022-07-21 02:03:48,131 INFO L158 Benchmark]: Witness Printer took 36.94ms. Allocated memory is still 77.6MB. Free memory was 43.4MB in the beginning and 41.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 02:03:48,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 29.8MB in the beginning and 29.8MB in the end (delta: 36.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 147.14ms. Allocated memory is still 58.7MB. Free memory was 33.3MB in the beginning and 41.8MB in the end (delta: -8.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.62ms. Allocated memory is still 58.7MB. Free memory was 41.7MB in the beginning and 40.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.25ms. Allocated memory is still 58.7MB. Free memory was 40.2MB in the beginning and 39.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 271.27ms. Allocated memory is still 58.7MB. Free memory was 39.2MB in the beginning and 40.9MB in the end (delta: -1.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * TraceAbstraction took 609.72ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 40.6MB in the beginning and 43.4MB in the end (delta: -2.8MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Witness Printer took 36.94ms. Allocated memory is still 77.6MB. Free memory was 43.4MB in the beginning and 41.6MB in the end (delta: 1.7MB). 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! [2022-07-21 02:03:48,169 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE