./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ms5f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/ms5f.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 43489357c504c9d567fbb67674e1a4536be31b16cc4b5a9d26541c9c9e4ad6c3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 10:35:02,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 10:35:02,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 10:35:02,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 10:35:02,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 10:35:02,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 10:35:02,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 10:35:02,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 10:35:02,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 10:35:02,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 10:35:02,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 10:35:02,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 10:35:02,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 10:35:02,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 10:35:02,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 10:35:02,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 10:35:02,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 10:35:02,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 10:35:02,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 10:35:02,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 10:35:02,628 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 10:35:02,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 10:35:02,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 10:35:02,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 10:35:02,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 10:35:02,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 10:35:02,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 10:35:02,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 10:35:02,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 10:35:02,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 10:35:02,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 10:35:02,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 10:35:02,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 10:35:02,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 10:35:02,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 10:35:02,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 10:35:02,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 10:35:02,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 10:35:02,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 10:35:02,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 10:35:02,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 10:35:02,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 10:35:02,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 10:35:02,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 10:35:02,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 10:35:02,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 10:35:02,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 10:35:02,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 10:35:02,680 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 10:35:02,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 10:35:02,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 10:35:02,681 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 10:35:02,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 10:35:02,682 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 10:35:02,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 10:35:02,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 10:35:02,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 10:35:02,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 10:35:02,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 10:35:02,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 10:35:02,683 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 10:35:02,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 10:35:02,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 10:35:02,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 10:35:02,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 10:35:02,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 10:35:02,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 10:35:02,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:35:02,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 10:35:02,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 10:35:02,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 10:35:02,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 10:35:02,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 10:35:02,686 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 10:35:02,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 10:35:02,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 10:35:02,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43489357c504c9d567fbb67674e1a4536be31b16cc4b5a9d26541c9c9e4ad6c3 [2022-07-19 10:35:02,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 10:35:02,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 10:35:02,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 10:35:02,944 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 10:35:02,945 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 10:35:02,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ms5f.c [2022-07-19 10:35:03,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388816708/e27fd420625d403789bd9f8bce2ecd03/FLAG7c8aab88f [2022-07-19 10:35:03,374 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 10:35:03,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ms5f.c [2022-07-19 10:35:03,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388816708/e27fd420625d403789bd9f8bce2ecd03/FLAG7c8aab88f [2022-07-19 10:35:03,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388816708/e27fd420625d403789bd9f8bce2ecd03 [2022-07-19 10:35:03,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 10:35:03,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 10:35:03,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 10:35:03,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 10:35:03,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 10:35:03,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:35:03" (1/1) ... [2022-07-19 10:35:03,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab63da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:03, skipping insertion in model container [2022-07-19 10:35:03,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:35:03" (1/1) ... [2022-07-19 10:35:03,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 10:35:03,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 10:35:04,022 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/ms5f.c[587,600] [2022-07-19 10:35:04,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:35:04,056 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 10:35:04,070 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/ms5f.c[587,600] [2022-07-19 10:35:04,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:35:04,092 INFO L208 MainTranslator]: Completed translation [2022-07-19 10:35:04,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04 WrapperNode [2022-07-19 10:35:04,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 10:35:04,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 10:35:04,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 10:35:04,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 10:35:04,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04" (1/1) ... [2022-07-19 10:35:04,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04" (1/1) ... [2022-07-19 10:35:04,120 INFO L137 Inliner]: procedures = 17, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-07-19 10:35:04,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 10:35:04,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 10:35:04,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 10:35:04,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 10:35:04,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04" (1/1) ... [2022-07-19 10:35:04,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04" (1/1) ... [2022-07-19 10:35:04,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04" (1/1) ... [2022-07-19 10:35:04,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04" (1/1) ... [2022-07-19 10:35:04,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04" (1/1) ... [2022-07-19 10:35:04,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04" (1/1) ... [2022-07-19 10:35:04,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04" (1/1) ... [2022-07-19 10:35:04,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 10:35:04,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 10:35:04,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 10:35:04,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 10:35:04,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04" (1/1) ... [2022-07-19 10:35:04,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:35:04,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 10:35:04,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 10:35:04,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 10:35:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 10:35:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 10:35:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 10:35:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 10:35:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 10:35:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 10:35:04,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 10:35:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 10:35:04,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 10:35:04,269 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 10:35:04,270 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 10:35:04,391 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 10:35:04,410 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 10:35:04,419 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 10:35:04,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:35:04 BoogieIcfgContainer [2022-07-19 10:35:04,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 10:35:04,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 10:35:04,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 10:35:04,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 10:35:04,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:35:03" (1/3) ... [2022-07-19 10:35:04,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9bc83a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:35:04, skipping insertion in model container [2022-07-19 10:35:04,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:35:04" (2/3) ... [2022-07-19 10:35:04,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9bc83a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:35:04, skipping insertion in model container [2022-07-19 10:35:04,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:35:04" (3/3) ... [2022-07-19 10:35:04,440 INFO L111 eAbstractionObserver]: Analyzing ICFG ms5f.c [2022-07-19 10:35:04,451 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 10:35:04,467 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 10:35:04,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 10:35:04,523 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@5470bab3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4fb2f3c [2022-07-19 10:35:04,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 10:35:04,528 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) [2022-07-19 10:35:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 10:35:04,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:35:04,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:35:04,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:35:04,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:35:04,546 INFO L85 PathProgramCache]: Analyzing trace with hash 356661439, now seen corresponding path program 1 times [2022-07-19 10:35:04,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:35:04,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680029469] [2022-07-19 10:35:04,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:35:04,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:35:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:35:04,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:35:04,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:35:04,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680029469] [2022-07-19 10:35:04,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680029469] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:35:04,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:35:04,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 10:35:04,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648157055] [2022-07-19 10:35:04,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:35:04,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 10:35:04,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:35:04,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 10:35:04,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 10:35:04,730 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) [2022-07-19 10:35:04,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:35:04,746 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2022-07-19 10:35:04,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 10:35:04,750 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 [2022-07-19 10:35:04,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:35:04,756 INFO L225 Difference]: With dead ends: 34 [2022-07-19 10:35:04,757 INFO L226 Difference]: Without dead ends: 15 [2022-07-19 10:35:04,765 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 [2022-07-19 10:35:04,770 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 [2022-07-19 10:35:04,771 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] [2022-07-19 10:35:04,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-07-19 10:35:04,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-07-19 10:35:04,790 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) [2022-07-19 10:35:04,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-07-19 10:35:04,791 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2022-07-19 10:35:04,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:35:04,791 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-07-19 10:35:04,792 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) [2022-07-19 10:35:04,792 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-07-19 10:35:04,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 10:35:04,792 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:35:04,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:35:04,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 10:35:04,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:35:04,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:35:04,794 INFO L85 PathProgramCache]: Analyzing trace with hash -452685187, now seen corresponding path program 1 times [2022-07-19 10:35:04,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:35:04,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463067939] [2022-07-19 10:35:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:35:04,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:35:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:35:04,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:35:04,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:35:04,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463067939] [2022-07-19 10:35:04,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463067939] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:35:04,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:35:04,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 10:35:04,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145977040] [2022-07-19 10:35:04,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:35:04,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 10:35:04,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:35:04,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 10:35:04,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 10:35:04,880 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) [2022-07-19 10:35:04,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:35:04,919 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-07-19 10:35:04,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 10:35:04,920 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 [2022-07-19 10:35:04,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:35:04,920 INFO L225 Difference]: With dead ends: 28 [2022-07-19 10:35:04,921 INFO L226 Difference]: Without dead ends: 20 [2022-07-19 10:35:04,921 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 [2022-07-19 10:35:04,922 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 [2022-07-19 10:35:04,923 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] [2022-07-19 10:35:04,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-07-19 10:35:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-07-19 10:35:04,927 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) [2022-07-19 10:35:04,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-07-19 10:35:04,928 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2022-07-19 10:35:04,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:35:04,929 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-07-19 10:35:04,929 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) [2022-07-19 10:35:04,929 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-07-19 10:35:04,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-19 10:35:04,930 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:35:04,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:35:04,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 10:35:04,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:35:04,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:35:04,931 INFO L85 PathProgramCache]: Analyzing trace with hash 623611495, now seen corresponding path program 1 times [2022-07-19 10:35:04,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:35:04,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655983718] [2022-07-19 10:35:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:35:04,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:35:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:35:04,979 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 10:35:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:35:05,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 10:35:05,053 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 10:35:05,054 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 10:35:05,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 10:35:05,059 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-19 10:35:05,064 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 10:35:05,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:35:05 BoogieIcfgContainer [2022-07-19 10:35:05,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 10:35:05,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 10:35:05,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 10:35:05,102 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 10:35:05,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:35:04" (3/4) ... [2022-07-19 10:35:05,104 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 10:35:05,136 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 10:35:05,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 10:35:05,137 INFO L158 Benchmark]: Toolchain (without parser) took 1336.10ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 74.9MB in the beginning and 87.7MB in the end (delta: -12.7MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-07-19 10:35:05,137 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:35:05,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.40ms. Allocated memory is still 107.0MB. Free memory was 74.7MB in the beginning and 81.1MB in the end (delta: -6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 10:35:05,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.79ms. Allocated memory is still 107.0MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 10:35:05,139 INFO L158 Benchmark]: Boogie Preprocessor took 31.69ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 78.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 10:35:05,139 INFO L158 Benchmark]: RCFGBuilder took 268.23ms. Allocated memory is still 107.0MB. Free memory was 78.3MB in the beginning and 68.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 10:35:05,140 INFO L158 Benchmark]: TraceAbstraction took 678.69ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 67.4MB in the beginning and 89.8MB in the end (delta: -22.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-07-19 10:35:05,140 INFO L158 Benchmark]: Witness Printer took 34.29ms. Allocated memory is still 134.2MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 10:35:05,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.40ms. Allocated memory is still 107.0MB. Free memory was 74.7MB in the beginning and 81.1MB in the end (delta: -6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.79ms. Allocated memory is still 107.0MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.69ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 78.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 268.23ms. Allocated memory is still 107.0MB. Free memory was 78.3MB in the beginning and 68.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 678.69ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 67.4MB in the beginning and 89.8MB in the end (delta: -22.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Witness Printer took 34.29ms. Allocated memory is still 134.2MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 4*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: 0.6s, 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! [2022-07-19 10:35:05,181 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