./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/NestedRecursion_2a.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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/termination-crafted/NestedRecursion_2a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d1b4f878f349b01f3590c559873a0592fcefb7dcee6776147b1461d6eff5d64d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:02:35,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:02:35,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:02:35,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:02:35,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:02:35,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:02:35,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:02:35,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:02:35,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:02:35,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:02:35,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:02:35,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:02:35,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:02:35,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:02:35,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:02:35,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:02:35,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:02:35,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:02:35,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:02:35,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:02:35,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:02:35,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:02:35,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:02:35,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:02:35,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:02:35,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:02:35,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:02:35,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:02:35,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:02:35,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:02:35,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:02:35,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:02:35,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:02:35,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:02:35,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:02:35,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:02:35,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:02:35,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:02:35,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:02:35,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:02:35,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:02:35,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-02-21 03:02:35,998 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:02:35,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:02:35,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:02:35,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:02:36,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-21 03:02:36,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-21 03:02:36,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:02:36,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:02:36,001 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:02:36,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:02:36,002 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:02:36,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:02:36,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:02:36,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-21 03:02:36,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-21 03:02:36,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-21 03:02:36,002 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-02-21 03:02:36,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:02:36,003 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:02:36,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-21 03:02:36,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:02:36,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:02:36,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-21 03:02:36,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:02:36,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:02:36,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-21 03:02:36,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-21 03:02:36,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:02:36,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-21 03:02:36,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-21 03:02:36,005 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1b4f878f349b01f3590c559873a0592fcefb7dcee6776147b1461d6eff5d64d [2022-02-21 03:02:36,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:02:36,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:02:36,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:02:36,255 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:02:36,256 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:02:36,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_2a.c [2022-02-21 03:02:36,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae807cbd5/92d2c80a77b841cc8348a1f95b3520e4/FLAG15ef07773 [2022-02-21 03:02:36,705 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:02:36,706 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_2a.c [2022-02-21 03:02:36,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae807cbd5/92d2c80a77b841cc8348a1f95b3520e4/FLAG15ef07773 [2022-02-21 03:02:36,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae807cbd5/92d2c80a77b841cc8348a1f95b3520e4 [2022-02-21 03:02:36,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:02:36,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:02:36,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:02:36,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:02:36,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:02:36,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295c89f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36, skipping insertion in model container [2022-02-21 03:02:36,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:02:36,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:02:36,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:02:36,895 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:02:36,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:02:36,910 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:02:36,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36 WrapperNode [2022-02-21 03:02:36,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:02:36,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:02:36,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:02:36,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:02:36,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,932 INFO L137 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8 [2022-02-21 03:02:36,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:02:36,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:02:36,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:02:36,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:02:36,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:02:36,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:02:36,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:02:36,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:02:36,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36" (1/1) ... [2022-02-21 03:02:36,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:02:36,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:02:36,966 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) [2022-02-21 03:02:36,981 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 [2022-02-21 03:02:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure g [2022-02-21 03:02:36,998 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2022-02-21 03:02:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:02:36,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:02:37,032 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:02:37,033 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:02:37,143 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:02:37,149 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:02:37,149 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-21 03:02:37,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:02:37 BoogieIcfgContainer [2022-02-21 03:02:37,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:02:37,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-21 03:02:37,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-21 03:02:37,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-21 03:02:37,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:02:36" (1/3) ... [2022-02-21 03:02:37,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51740891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:02:37, skipping insertion in model container [2022-02-21 03:02:37,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:02:36" (2/3) ... [2022-02-21 03:02:37,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51740891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:02:37, skipping insertion in model container [2022-02-21 03:02:37,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:02:37" (3/3) ... [2022-02-21 03:02:37,155 INFO L111 eAbstractionObserver]: Analyzing ICFG NestedRecursion_2a.c [2022-02-21 03:02:37,159 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-21 03:02:37,159 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-21 03:02:37,186 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-21 03:02:37,190 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=FINITE_AUTOMATA, 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 [2022-02-21 03:02:37,191 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-21 03:02:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-21 03:02:37,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-02-21 03:02:37,208 INFO L506 BasicCegarLoop]: Found error trace [2022-02-21 03:02:37,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-02-21 03:02:37,209 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-02-21 03:02:37,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:02:37,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1303862826, now seen corresponding path program 1 times [2022-02-21 03:02:37,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:02:37,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431064663] [2022-02-21 03:02:37,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:02:37,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:02:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:02:37,400 INFO L290 TraceCheckUtils]: 0: Hoare triple {22#true} assume { :begin_inline_ULTIMATE.init } true; {22#true} is VALID [2022-02-21 03:02:37,401 INFO L290 TraceCheckUtils]: 1: Hoare triple {22#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~x~0#1;assume -2147483648 <= main_#t~nondet2#1 && main_#t~nondet2#1 <= 2147483647;main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; {24#(<= |ULTIMATE.start_main_~x~0#1| 2147483647)} is VALID [2022-02-21 03:02:37,402 INFO L272 TraceCheckUtils]: 2: Hoare triple {24#(<= |ULTIMATE.start_main_~x~0#1| 2147483647)} call main_#t~ret3#1 := g(main_~x~0#1); {25#(<= |g_#in~x| 2147483647)} is VALID [2022-02-21 03:02:37,403 INFO L290 TraceCheckUtils]: 3: Hoare triple {25#(<= |g_#in~x| 2147483647)} ~x := #in~x; {26#(<= g_~x 2147483647)} is VALID [2022-02-21 03:02:37,403 INFO L290 TraceCheckUtils]: 4: Hoare triple {26#(<= g_~x 2147483647)} assume !(0 == ~x); {26#(<= g_~x 2147483647)} is VALID [2022-02-21 03:02:37,404 INFO L290 TraceCheckUtils]: 5: Hoare triple {26#(<= g_~x 2147483647)} assume !(~x - 1 <= 2147483647); {23#false} is VALID [2022-02-21 03:02:37,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:02:37,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 03:02:37,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431064663] [2022-02-21 03:02:37,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431064663] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 03:02:37,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 03:02:37,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 03:02:37,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732253264] [2022-02-21 03:02:37,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 03:02:37,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-02-21 03:02:37,421 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-21 03:02:37,423 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:02:37,438 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:02:37,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-21 03:02:37,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 03:02:37,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 03:02:37,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 03:02:37,460 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:02:37,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:02:37,660 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-02-21 03:02:37,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 03:02:37,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-02-21 03:02:37,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-21 03:02:37,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:02:37,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 39 transitions. [2022-02-21 03:02:37,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:02:37,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 39 transitions. [2022-02-21 03:02:37,675 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 39 transitions. [2022-02-21 03:02:37,731 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:02:37,738 INFO L225 Difference]: With dead ends: 33 [2022-02-21 03:02:37,739 INFO L226 Difference]: Without dead ends: 28 [2022-02-21 03:02:37,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-21 03:02:37,746 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 20 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-21 03:02:37,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 51 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-21 03:02:37,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-02-21 03:02:37,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2022-02-21 03:02:37,776 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 03:02:37,777 INFO L82 GeneralOperation]: Start isEquivalent. First operand 28 states. Second operand has 25 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-21 03:02:37,778 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand has 25 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-21 03:02:37,778 INFO L87 Difference]: Start difference. First operand 28 states. Second operand has 25 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-21 03:02:37,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:02:37,782 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-02-21 03:02:37,782 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-02-21 03:02:37,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:02:37,783 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:02:37,783 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 28 states. [2022-02-21 03:02:37,783 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 28 states. [2022-02-21 03:02:37,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:02:37,786 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-02-21 03:02:37,786 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-02-21 03:02:37,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:02:37,787 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:02:37,787 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 03:02:37,788 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 03:02:37,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-21 03:02:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-02-21 03:02:37,791 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 6 [2022-02-21 03:02:37,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-21 03:02:37,795 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-02-21 03:02:37,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:02:37,796 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-02-21 03:02:37,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-21 03:02:37,797 INFO L506 BasicCegarLoop]: Found error trace [2022-02-21 03:02:37,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 03:02:37,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-21 03:02:37,798 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-02-21 03:02:37,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:02:37,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1765041980, now seen corresponding path program 1 times [2022-02-21 03:02:37,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:02:37,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350940386] [2022-02-21 03:02:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:02:37,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:02:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:02:37,814 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:02:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:02:37,827 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:02:37,827 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-21 03:02:37,828 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-02-21 03:02:37,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-02-21 03:02:37,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-21 03:02:37,832 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-21 03:02:37,835 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-21 03:02:37,839 FATAL L489 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call #t~ret3 := g(~x~0); [2022-02-21 03:02:37,843 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) [2022-02-21 03:02:37,851 INFO L158 Benchmark]: Toolchain (without parser) took 1125.43ms. Allocated memory was 94.4MB in the beginning and 161.5MB in the end (delta: 67.1MB). Free memory was 61.7MB in the beginning and 115.5MB in the end (delta: -53.8MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2022-02-21 03:02:37,851 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:02:37,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.67ms. Allocated memory is still 94.4MB. Free memory was 61.3MB in the beginning and 71.4MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:02:37,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.78ms. Allocated memory is still 94.4MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:02:37,852 INFO L158 Benchmark]: Boogie Preprocessor took 9.04ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 69.0MB in the end (delta: 980.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:02:37,853 INFO L158 Benchmark]: RCFGBuilder took 207.59ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 59.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:02:37,853 INFO L158 Benchmark]: TraceAbstraction took 696.84ms. Allocated memory was 94.4MB in the beginning and 161.5MB in the end (delta: 67.1MB). Free memory was 59.2MB in the beginning and 115.5MB in the end (delta: -56.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-02-21 03:02:37,854 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 0.15ms. Allocated memory is still 94.4MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.67ms. Allocated memory is still 94.4MB. Free memory was 61.3MB in the beginning and 71.4MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.78ms. Allocated memory is still 94.4MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 9.04ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 69.0MB in the end (delta: 980.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 207.59ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 59.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 696.84ms. Allocated memory was 94.4MB in the beginning and 161.5MB in the end (delta: 67.1MB). Free memory was 59.2MB in the beginning and 115.5MB in the end (delta: -56.3MB). Peak memory consumption was 12.4MB. 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. [2022-02-21 03:02:37,883 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 No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator