./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/sum_non_eq-3.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/recursive-simple/sum_non_eq-3.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 41c9705134faa9e28eba566071c8a538a7da12abc5ccedccf4ff4ee4f7173585 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 18:17:42,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:17:42,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:17:42,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:17:42,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:17:42,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:17:42,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:17:42,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:17:42,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:17:42,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:17:42,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:17:42,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:17:42,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:17:42,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:17:42,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:17:42,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:17:42,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:17:42,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:17:42,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:17:42,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:17:42,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:17:42,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:17:42,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:17:42,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:17:42,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:17:42,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:17:42,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:17:42,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:17:42,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:17:42,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:17:42,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:17:42,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:17:42,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:17:42,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:17:42,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:17:42,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:17:42,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:17:42,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:17:42,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:17:42,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:17:42,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:17:42,730 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 18:17:42,743 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:17:42,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:17:42,744 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:17:42,744 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:17:42,745 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:17:42,745 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:17:42,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:17:42,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:17:42,746 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:17:42,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:17:42,746 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:17:42,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 18:17:42,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:17:42,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:17:42,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:17:42,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:17:42,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:17:42,747 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:17:42,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:17:42,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:17:42,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:17:42,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:17:42,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:17:42,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:17:42,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:17:42,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:17:42,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:17:42,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:17:42,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 18:17:42,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 18:17:42,749 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:17:42,749 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:17:42,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:17:42,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41c9705134faa9e28eba566071c8a538a7da12abc5ccedccf4ff4ee4f7173585 [2022-02-20 18:17:42,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:17:42,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:17:42,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:17:42,980 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:17:42,995 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:17:42,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_non_eq-3.c [2022-02-20 18:17:43,048 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ab0c346/e43370a2f1184449afdc66774ac7fe1c/FLAG50d811021 [2022-02-20 18:17:43,409 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:17:43,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_non_eq-3.c [2022-02-20 18:17:43,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ab0c346/e43370a2f1184449afdc66774ac7fe1c/FLAG50d811021 [2022-02-20 18:17:43,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ab0c346/e43370a2f1184449afdc66774ac7fe1c [2022-02-20 18:17:43,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:17:43,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:17:43,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:17:43,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:17:43,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:17:43,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:17:43" (1/1) ... [2022-02-20 18:17:43,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5bd704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:43, skipping insertion in model container [2022-02-20 18:17:43,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:17:43" (1/1) ... [2022-02-20 18:17:43,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:17:43,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:17:44,021 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/recursive-simple/sum_non_eq-3.c[628,641] [2022-02-20 18:17:44,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:17:44,048 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:17:44,076 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/recursive-simple/sum_non_eq-3.c[628,641] [2022-02-20 18:17:44,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:17:44,088 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:17:44,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44 WrapperNode [2022-02-20 18:17:44,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:17:44,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:17:44,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:17:44,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:17:44,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44" (1/1) ... [2022-02-20 18:17:44,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44" (1/1) ... [2022-02-20 18:17:44,137 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-02-20 18:17:44,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:17:44,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:17:44,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:17:44,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:17:44,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44" (1/1) ... [2022-02-20 18:17:44,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44" (1/1) ... [2022-02-20 18:17:44,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44" (1/1) ... [2022-02-20 18:17:44,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44" (1/1) ... [2022-02-20 18:17:44,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44" (1/1) ... [2022-02-20 18:17:44,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44" (1/1) ... [2022-02-20 18:17:44,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44" (1/1) ... [2022-02-20 18:17:44,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:17:44,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:17:44,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:17:44,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:17:44,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44" (1/1) ... [2022-02-20 18:17:44,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:17:44,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:17:44,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 18:17:44,252 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 [2022-02-20 18:17:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:17:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:17:44,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:17:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-02-20 18:17:44,280 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-02-20 18:17:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 18:17:44,330 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:17:44,331 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:17:44,430 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:17:44,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:17:44,439 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 18:17:44,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:17:44 BoogieIcfgContainer [2022-02-20 18:17:44,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:17:44,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:17:44,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:17:44,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:17:44,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:17:43" (1/3) ... [2022-02-20 18:17:44,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb2c3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:17:44, skipping insertion in model container [2022-02-20 18:17:44,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:44" (2/3) ... [2022-02-20 18:17:44,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb2c3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:17:44, skipping insertion in model container [2022-02-20 18:17:44,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:17:44" (3/3) ... [2022-02-20 18:17:44,449 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-3.c [2022-02-20 18:17:44,455 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:17:44,455 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:17:44,498 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:17:44,504 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 18:17:44,505 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:17:44,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 18:17:44,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 18:17:44,531 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:17:44,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 18:17:44,532 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:17:44,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:17:44,536 INFO L85 PathProgramCache]: Analyzing trace with hash -358017204, now seen corresponding path program 1 times [2022-02-20 18:17:44,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 18:17:44,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438086098] [2022-02-20 18:17:44,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:17:44,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 18:17:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:17:44,632 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 18:17:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:17:44,680 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 18:17:44,682 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 18:17:44,682 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 18:17:44,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 18:17:44,687 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 18:17:44,689 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 18:17:44,699 FATAL L489 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call #t~ret7 := sum(~a~0, ~b~0); [2022-02-20 18:17:44,700 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: callstack broken after backtranslation by InlinerBacktranslator at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:607) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-20 18:17:44,703 INFO L158 Benchmark]: Toolchain (without parser) took 839.94ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 65.3MB in the beginning and 64.2MB in the end (delta: 1.1MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2022-02-20 18:17:44,704 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 90.2MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:17:44,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.80ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 65.1MB in the beginning and 90.1MB in the end (delta: -25.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 18:17:44,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.33ms. Allocated memory is still 113.2MB. Free memory was 90.1MB in the beginning and 88.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 18:17:44,706 INFO L158 Benchmark]: Boogie Preprocessor took 18.84ms. Allocated memory is still 113.2MB. Free memory was 88.5MB in the beginning and 87.8MB in the end (delta: 768.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:17:44,709 INFO L158 Benchmark]: RCFGBuilder took 270.27ms. Allocated memory is still 113.2MB. Free memory was 87.8MB in the beginning and 78.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 18:17:44,710 INFO L158 Benchmark]: TraceAbstraction took 259.36ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 64.2MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 18:17:44,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 90.2MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.80ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 65.1MB in the beginning and 90.1MB in the end (delta: -25.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.33ms. Allocated memory is still 113.2MB. Free memory was 90.1MB in the beginning and 88.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.84ms. Allocated memory is still 113.2MB. Free memory was 88.5MB in the beginning and 87.8MB in the end (delta: 768.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 270.27ms. Allocated memory is still 113.2MB. Free memory was 87.8MB in the beginning and 78.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 259.36ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 64.2MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. 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 - ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: callstack broken after backtranslation by InlinerBacktranslator: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-20 18:17:44,757 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/recursive-simple/sum_non_eq-3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 41c9705134faa9e28eba566071c8a538a7da12abc5ccedccf4ff4ee4f7173585 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 18:17:46,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:17:46,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:17:46,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:17:46,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:17:46,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:17:46,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:17:46,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:17:46,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:17:46,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:17:46,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:17:46,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:17:46,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:17:46,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:17:46,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:17:46,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:17:46,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:17:46,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:17:46,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:17:46,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:17:46,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:17:46,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:17:46,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:17:46,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:17:46,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:17:46,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:17:46,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:17:46,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:17:46,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:17:46,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:17:46,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:17:46,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:17:46,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:17:46,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:17:46,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:17:46,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:17:46,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:17:46,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:17:46,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:17:46,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:17:46,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:17:46,911 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 18:17:46,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:17:46,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:17:46,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:17:46,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:17:46,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:17:46,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:17:46,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:17:46,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:17:46,928 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:17:46,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:17:46,929 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:17:46,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:17:46,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:17:46,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:17:46,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:17:46,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:17:46,930 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 18:17:46,930 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 18:17:46,930 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 18:17:46,931 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:17:46,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:17:46,931 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:17:46,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:17:46,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:17:46,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:17:46,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:17:46,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:17:46,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:17:46,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:17:46,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:17:46,940 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 18:17:46,940 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 18:17:46,940 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:17:46,941 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:17:46,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:17:46,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 18:17:46,941 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41c9705134faa9e28eba566071c8a538a7da12abc5ccedccf4ff4ee4f7173585 [2022-02-20 18:17:47,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:17:47,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:17:47,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:17:47,219 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:17:47,220 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:17:47,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_non_eq-3.c [2022-02-20 18:17:47,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4a838150/819f1115f3ba4b8785f7e158326643d1/FLAG2d9b632f4 [2022-02-20 18:17:47,638 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:17:47,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_non_eq-3.c [2022-02-20 18:17:47,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4a838150/819f1115f3ba4b8785f7e158326643d1/FLAG2d9b632f4 [2022-02-20 18:17:47,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4a838150/819f1115f3ba4b8785f7e158326643d1 [2022-02-20 18:17:47,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:17:47,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:17:47,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:17:47,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:17:47,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:17:47,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a84d9dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47, skipping insertion in model container [2022-02-20 18:17:47,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:17:47,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:17:47,800 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/recursive-simple/sum_non_eq-3.c[628,641] [2022-02-20 18:17:47,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:17:47,814 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:17:47,826 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/recursive-simple/sum_non_eq-3.c[628,641] [2022-02-20 18:17:47,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:17:47,875 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:17:47,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47 WrapperNode [2022-02-20 18:17:47,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:17:47,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:17:47,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:17:47,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:17:47,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,929 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-02-20 18:17:47,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:17:47,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:17:47,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:17:47,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:17:47,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:17:47,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:17:47,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:17:47,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:17:47,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47" (1/1) ... [2022-02-20 18:17:47,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:17:47,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:17:48,009 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) [2022-02-20 18:17:48,070 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 [2022-02-20 18:17:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:17:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:17:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:17:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 18:17:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-02-20 18:17:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-02-20 18:17:48,135 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:17:48,136 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:17:48,204 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:17:48,209 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:17:48,209 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 18:17:48,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:17:48 BoogieIcfgContainer [2022-02-20 18:17:48,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:17:48,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:17:48,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:17:48,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:17:48,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:17:47" (1/3) ... [2022-02-20 18:17:48,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544a7461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:17:48, skipping insertion in model container [2022-02-20 18:17:48,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:17:47" (2/3) ... [2022-02-20 18:17:48,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544a7461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:17:48, skipping insertion in model container [2022-02-20 18:17:48,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:17:48" (3/3) ... [2022-02-20 18:17:48,215 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-3.c [2022-02-20 18:17:48,219 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:17:48,219 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:17:48,253 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:17:48,257 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 18:17:48,257 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:17:48,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 18:17:48,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 18:17:48,280 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:17:48,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 18:17:48,289 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:17:48,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:17:48,293 INFO L85 PathProgramCache]: Analyzing trace with hash -358017204, now seen corresponding path program 1 times [2022-02-20 18:17:48,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 18:17:48,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604307644] [2022-02-20 18:17:48,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:17:48,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 18:17:48,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 18:17:48,321 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 18:17:48,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 18:17:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:17:48,387 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 18:17:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:17:48,435 INFO L138 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-02-20 18:17:48,437 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 18:17:48,438 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 18:17:48,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-02-20 18:17:48,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 18:17:48,656 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 18:17:48,658 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 18:17:48,669 FATAL L489 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call #t~ret7 := sum(~a~0, ~b~0); [2022-02-20 18:17:48,670 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: callstack broken after backtranslation by InlinerBacktranslator at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:607) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-20 18:17:48,675 INFO L158 Benchmark]: Toolchain (without parser) took 1020.86ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.9MB in the beginning and 32.4MB in the end (delta: -8.5MB). Peak memory consumption was 931.5kB. Max. memory is 16.1GB. [2022-02-20 18:17:48,676 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 48.2MB. Free memory was 30.2MB in the beginning and 30.1MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:17:48,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.90ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.7MB in the beginning and 42.8MB in the end (delta: -19.1MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2022-02-20 18:17:48,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.74ms. Allocated memory is still 58.7MB. Free memory was 42.6MB in the beginning and 41.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:17:48,678 INFO L158 Benchmark]: Boogie Preprocessor took 23.78ms. Allocated memory is still 58.7MB. Free memory was 41.2MB in the beginning and 40.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:17:48,682 INFO L158 Benchmark]: RCFGBuilder took 255.42ms. Allocated memory is still 58.7MB. Free memory was 40.1MB in the beginning and 31.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 18:17:48,683 INFO L158 Benchmark]: TraceAbstraction took 461.44ms. Allocated memory is still 58.7MB. Free memory was 31.0MB in the beginning and 32.4MB in the end (delta: -1.5MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2022-02-20 18:17:48,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 48.2MB. Free memory was 30.2MB in the beginning and 30.1MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.90ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.7MB in the beginning and 42.8MB in the end (delta: -19.1MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.74ms. Allocated memory is still 58.7MB. Free memory was 42.6MB in the beginning and 41.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.78ms. Allocated memory is still 58.7MB. Free memory was 41.2MB in the beginning and 40.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 255.42ms. Allocated memory is still 58.7MB. Free memory was 40.1MB in the beginning and 31.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 461.44ms. Allocated memory is still 58.7MB. Free memory was 31.0MB in the beginning and 32.4MB in the end (delta: -1.5MB). Peak memory consumption was 1.1MB. 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 - ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: callstack broken after backtranslation by InlinerBacktranslator: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-20 18:17:48,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator