./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ms4f.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/array-fpi/ms4f.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 1041c37fd0d76b4316bbd28c981d57c8766628afe4ada50323b80c8a8a735d61 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 22:10:19,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 22:10:19,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 22:10:19,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 22:10:19,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 22:10:19,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 22:10:19,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 22:10:19,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 22:10:19,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 22:10:19,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 22:10:19,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 22:10:19,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 22:10:19,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 22:10:19,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 22:10:19,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 22:10:19,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 22:10:19,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 22:10:19,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 22:10:19,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 22:10:19,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 22:10:19,445 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 22:10:19,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 22:10:19,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 22:10:19,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 22:10:19,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 22:10:19,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 22:10:19,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 22:10:19,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 22:10:19,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 22:10:19,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 22:10:19,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 22:10:19,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 22:10:19,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 22:10:19,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 22:10:19,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 22:10:19,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 22:10:19,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 22:10:19,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 22:10:19,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 22:10:19,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 22:10:19,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 22:10:19,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 22:10:19,462 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 22:10:19,485 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 22:10:19,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 22:10:19,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 22:10:19,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 22:10:19,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 22:10:19,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 22:10:19,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 22:10:19,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 22:10:19,488 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 22:10:19,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 22:10:19,488 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 22:10:19,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 22:10:19,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 22:10:19,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 22:10:19,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 22:10:19,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 22:10:19,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 22:10:19,489 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 22:10:19,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 22:10:19,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 22:10:19,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 22:10:19,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 22:10:19,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 22:10:19,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 22:10:19,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:10:19,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 22:10:19,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 22:10:19,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 22:10:19,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 22:10:19,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 22:10:19,493 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 22:10:19,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 22:10:19,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 22:10:19,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1041c37fd0d76b4316bbd28c981d57c8766628afe4ada50323b80c8a8a735d61 [2022-07-20 22:10:19,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 22:10:19,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 22:10:19,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 22:10:19,706 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 22:10:19,707 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 22:10:19,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ms4f.c [2022-07-20 22:10:19,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8c7af58d/52e99389d95b40bd861ab1132788c948/FLAGf8805ddcb [2022-07-20 22:10:20,121 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 22:10:20,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ms4f.c [2022-07-20 22:10:20,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8c7af58d/52e99389d95b40bd861ab1132788c948/FLAGf8805ddcb [2022-07-20 22:10:20,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8c7af58d/52e99389d95b40bd861ab1132788c948 [2022-07-20 22:10:20,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 22:10:20,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 22:10:20,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 22:10:20,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 22:10:20,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 22:10:20,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19dca897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20, skipping insertion in model container [2022-07-20 22:10:20,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 22:10:20,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 22:10:20,272 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/array-fpi/ms4f.c[587,600] [2022-07-20 22:10:20,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:10:20,288 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 22:10:20,307 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/array-fpi/ms4f.c[587,600] [2022-07-20 22:10:20,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:10:20,319 INFO L208 MainTranslator]: Completed translation [2022-07-20 22:10:20,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20 WrapperNode [2022-07-20 22:10:20,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 22:10:20,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 22:10:20,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 22:10:20,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 22:10:20,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,342 INFO L137 Inliner]: procedures = 17, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-07-20 22:10:20,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 22:10:20,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 22:10:20,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 22:10:20,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 22:10:20,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 22:10:20,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 22:10:20,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 22:10:20,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 22:10:20,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20" (1/1) ... [2022-07-20 22:10:20,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:10:20,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:10:20,394 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) [2022-07-20 22:10:20,399 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 [2022-07-20 22:10:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 22:10:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 22:10:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 22:10:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 22:10:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 22:10:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 22:10:20,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 22:10:20,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 22:10:20,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 22:10:20,488 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 22:10:20,489 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 22:10:20,582 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 22:10:20,586 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 22:10:20,586 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-20 22:10:20,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:10:20 BoogieIcfgContainer [2022-07-20 22:10:20,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 22:10:20,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 22:10:20,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 22:10:20,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 22:10:20,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:10:20" (1/3) ... [2022-07-20 22:10:20,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c3d92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:10:20, skipping insertion in model container [2022-07-20 22:10:20,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:10:20" (2/3) ... [2022-07-20 22:10:20,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c3d92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:10:20, skipping insertion in model container [2022-07-20 22:10:20,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:10:20" (3/3) ... [2022-07-20 22:10:20,602 INFO L111 eAbstractionObserver]: Analyzing ICFG ms4f.c [2022-07-20 22:10:20,626 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 22:10:20,626 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 22:10:20,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 22:10:20,694 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@778155fd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@59a8b7bd [2022-07-20 22:10:20,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 22:10:20,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:10:20,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-20 22:10:20,712 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:10:20,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:10:20,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:10:20,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:10:20,717 INFO L85 PathProgramCache]: Analyzing trace with hash 356661439, now seen corresponding path program 1 times [2022-07-20 22:10:20,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:10:20,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707946453] [2022-07-20 22:10:20,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:10:20,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:10:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:10:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:10:20,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:10:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707946453] [2022-07-20 22:10:20,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707946453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:10:20,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:10:20,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:10:20,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097550046] [2022-07-20 22:10:20,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:10:20,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 22:10:20,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:10:20,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 22:10:20,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 22:10:20,923 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:10:20,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:10:20,936 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2022-07-20 22:10:20,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 22:10:20,938 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-20 22:10:20,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:10:20,943 INFO L225 Difference]: With dead ends: 34 [2022-07-20 22:10:20,943 INFO L226 Difference]: Without dead ends: 15 [2022-07-20 22:10:20,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 22:10:20,959 INFO L413 NwaCegarLoop]: 22 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, 22 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 22:10:20,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 22:10:20,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-07-20 22:10:20,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-07-20 22:10:20,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 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) [2022-07-20 22:10:20,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-07-20 22:10:20,983 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2022-07-20 22:10:20,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:10:20,984 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-07-20 22:10:20,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:10:20,984 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-07-20 22:10:20,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-20 22:10:20,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:10:20,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:10:20,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 22:10:20,985 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:10:20,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:10:20,988 INFO L85 PathProgramCache]: Analyzing trace with hash -452685187, now seen corresponding path program 1 times [2022-07-20 22:10:20,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:10:20,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119327029] [2022-07-20 22:10:20,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:10:20,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:10:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:10:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:10:21,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:10:21,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119327029] [2022-07-20 22:10:21,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119327029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:10:21,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:10:21,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:10:21,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299098555] [2022-07-20 22:10:21,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:10:21,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:10:21,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:10:21,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:10:21,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:10:21,081 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:10:21,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:10:21,113 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-07-20 22:10:21,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:10:21,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-20 22:10:21,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:10:21,114 INFO L225 Difference]: With dead ends: 28 [2022-07-20 22:10:21,114 INFO L226 Difference]: Without dead ends: 20 [2022-07-20 22:10:21,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:10:21,116 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 22:10:21,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 11 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 22:10:21,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-07-20 22:10:21,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-07-20 22:10:21,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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) [2022-07-20 22:10:21,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-07-20 22:10:21,134 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2022-07-20 22:10:21,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:10:21,135 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-07-20 22:10:21,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:10:21,135 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-07-20 22:10:21,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-20 22:10:21,135 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:10:21,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:10:21,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 22:10:21,136 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:10:21,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:10:21,137 INFO L85 PathProgramCache]: Analyzing trace with hash 623611495, now seen corresponding path program 1 times [2022-07-20 22:10:21,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:10:21,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625148301] [2022-07-20 22:10:21,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:10:21,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:10:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 22:10:21,172 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-20 22:10:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 22:10:21,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-20 22:10:21,206 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-20 22:10:21,207 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-20 22:10:21,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 22:10:21,211 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-20 22:10:21,213 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 22:10:21,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:10:21 BoogieIcfgContainer [2022-07-20 22:10:21,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 22:10:21,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 22:10:21,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 22:10:21,231 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 22:10:21,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:10:20" (3/4) ... [2022-07-20 22:10:21,233 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-20 22:10:21,267 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-20 22:10:21,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 22:10:21,270 INFO L158 Benchmark]: Toolchain (without parser) took 1131.93ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 67.4MB in the beginning and 94.5MB in the end (delta: -27.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:10:21,270 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory was 55.1MB in the beginning and 55.1MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:10:21,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.63ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 67.2MB in the beginning and 102.7MB in the end (delta: -35.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-20 22:10:21,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.59ms. Allocated memory is still 127.9MB. Free memory was 102.7MB in the beginning and 101.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:10:21,271 INFO L158 Benchmark]: Boogie Preprocessor took 15.00ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 100.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 22:10:21,272 INFO L158 Benchmark]: RCFGBuilder took 229.93ms. Allocated memory is still 127.9MB. Free memory was 100.1MB in the beginning and 89.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-20 22:10:21,272 INFO L158 Benchmark]: TraceAbstraction took 641.55ms. Allocated memory is still 127.9MB. Free memory was 88.8MB in the beginning and 96.6MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:10:21,272 INFO L158 Benchmark]: Witness Printer took 38.25ms. Allocated memory is still 127.9MB. Free memory was 96.6MB in the beginning and 94.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 22:10:21,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory was 55.1MB in the beginning and 55.1MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.63ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 67.2MB in the beginning and 102.7MB in the end (delta: -35.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.59ms. Allocated memory is still 127.9MB. Free memory was 102.7MB in the beginning and 101.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.00ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 100.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 229.93ms. Allocated memory is still 127.9MB. Free memory was 100.1MB in the beginning and 89.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 641.55ms. Allocated memory is still 127.9MB. Free memory was 88.8MB in the beginning and 96.6MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.25ms. Allocated memory is still 127.9MB. Free memory was 96.6MB in the beginning and 94.5MB in the end (delta: 2.1MB). 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] i=0 VAL [a={-1:0}, i=0, N=1, sum={9:0}] [L31] COND TRUE i 3*N) [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, N=1] [L15] reach_error() VAL [\old(cond)=0, cond=0, N=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 30 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 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 RESULT: Ultimate proved your program to be incorrect! [2022-07-20 22:10:21,305 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