./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/sum_non.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- 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/recursive-simple/sum_non.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 13160766ab5e643bd08f9724b40035ea4b7373673380c24ecb20b0478591b2b8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:08:53,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:08:53,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:08:53,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:08:53,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:08:53,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:08:53,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:08:53,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:08:53,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:08:53,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:08:53,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:08:53,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:08:53,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:08:53,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:08:53,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:08:53,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:08:53,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:08:53,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:08:53,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:08:53,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:08:53,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:08:53,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:08:53,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:08:53,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:08:53,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:08:53,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:08:53,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:08:53,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:08:53,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:08:53,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:08:53,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:08:53,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:08:53,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:08:53,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:08:53,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:08:53,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:08:53,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:08:53,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:08:53,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:08:53,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:08:53,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:08:53,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-02-21 03:08:53,341 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:08:53,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:08:53,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:08:53,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:08:53,344 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-21 03:08:53,344 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-21 03:08:53,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:08:53,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:08:53,345 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:08:53,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:08:53,346 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 03:08:53,346 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:08:53,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:08:53,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 03:08:53,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:08:53,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-21 03:08:53,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-21 03:08:53,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-21 03:08:53,348 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-02-21 03:08:53,348 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 03:08:53,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:08:53,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:08:53,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-21 03:08:53,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:08:53,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:08:53,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-21 03:08:53,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:08:53,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:08:53,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-21 03:08:53,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-21 03:08:53,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:08:53,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-21 03:08:53,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-21 03:08:53,351 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13160766ab5e643bd08f9724b40035ea4b7373673380c24ecb20b0478591b2b8 [2022-02-21 03:08:53,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:08:53,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:08:53,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:08:53,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:08:53,581 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:08:53,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_non.c [2022-02-21 03:08:53,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d017c1f/740ddc06bdf64be7b257c2b95e8d6d1d/FLAGdd350edb0 [2022-02-21 03:08:53,968 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:08:53,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_non.c [2022-02-21 03:08:53,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d017c1f/740ddc06bdf64be7b257c2b95e8d6d1d/FLAGdd350edb0 [2022-02-21 03:08:54,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d017c1f/740ddc06bdf64be7b257c2b95e8d6d1d [2022-02-21 03:08:54,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:08:54,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:08:54,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:08:54,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:08:54,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:08:54,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b494b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54, skipping insertion in model container [2022-02-21 03:08:54,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:08:54,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:08:54,565 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.c[561,574] [2022-02-21 03:08:54,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:08:54,572 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:08:54,585 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.c[561,574] [2022-02-21 03:08:54,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:08:54,598 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:08:54,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54 WrapperNode [2022-02-21 03:08:54,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:08:54,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:08:54,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:08:54,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:08:54,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,633 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-02-21 03:08:54,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:08:54,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:08:54,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:08:54,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:08:54,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:08:54,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:08:54,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:08:54,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:08:54,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54" (1/1) ... [2022-02-21 03:08:54,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:08:54,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:08:54,704 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 03:08:54,729 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 03:08:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 03:08:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:08:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:08:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-02-21 03:08:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-02-21 03:08:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 03:08:54,806 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:08:54,808 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:08:55,024 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:08:55,030 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:08:55,030 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-21 03:08:55,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:08:55 BoogieIcfgContainer [2022-02-21 03:08:55,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:08:55,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-21 03:08:55,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-21 03:08:55,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-21 03:08:55,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:08:54" (1/3) ... [2022-02-21 03:08:55,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69aaaf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:08:55, skipping insertion in model container [2022-02-21 03:08:55,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:08:54" (2/3) ... [2022-02-21 03:08:55,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69aaaf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:08:55, skipping insertion in model container [2022-02-21 03:08:55,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:08:55" (3/3) ... [2022-02-21 03:08:55,055 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non.c [2022-02-21 03:08:55,060 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-21 03:08:55,060 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-02-21 03:08:55,110 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-21 03:08:55,116 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 03:08:55,118 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-02-21 03:08:55,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 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) [2022-02-21 03:08:55,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-02-21 03:08:55,157 INFO L506 BasicCegarLoop]: Found error trace [2022-02-21 03:08:55,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-02-21 03:08:55,159 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-02-21 03:08:55,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:08:55,168 INFO L85 PathProgramCache]: Analyzing trace with hash 890531536, now seen corresponding path program 1 times [2022-02-21 03:08:55,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:08:55,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448819722] [2022-02-21 03:08:55,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:08:55,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:08:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:08:55,451 INFO L290 TraceCheckUtils]: 0: Hoare triple {34#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {34#true} is VALID [2022-02-21 03:08:55,454 INFO L290 TraceCheckUtils]: 1: Hoare triple {34#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret7#1, main_~a~0#1, main_~b~0#1, main_~result~0#1;assume -2147483648 <= main_#t~nondet5#1 && main_#t~nondet5#1 <= 2147483647;main_~a~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647;main_~b~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; {36#(<= |ULTIMATE.start_main_~b~0#1| 2147483647)} is VALID [2022-02-21 03:08:55,456 INFO L272 TraceCheckUtils]: 2: Hoare triple {36#(<= |ULTIMATE.start_main_~b~0#1| 2147483647)} call main_#t~ret7#1 := sum(main_~a~0#1, main_~b~0#1); {37#(<= |sum_#in~m| 2147483647)} is VALID [2022-02-21 03:08:55,457 INFO L290 TraceCheckUtils]: 3: Hoare triple {37#(<= |sum_#in~m| 2147483647)} ~n := #in~n;~m := #in~m; {38#(<= sum_~m 2147483647)} is VALID [2022-02-21 03:08:55,458 INFO L290 TraceCheckUtils]: 4: Hoare triple {38#(<= sum_~m 2147483647)} assume ~n <= 0; {39#(<= (+ sum_~n sum_~m) 2147483647)} is VALID [2022-02-21 03:08:55,460 INFO L290 TraceCheckUtils]: 5: Hoare triple {39#(<= (+ sum_~n sum_~m) 2147483647)} assume !(~m + ~n <= 2147483647); {35#false} is VALID [2022-02-21 03:08:55,461 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 03:08:55,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 03:08:55,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448819722] [2022-02-21 03:08:55,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448819722] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 03:08:55,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 03:08:55,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 03:08:55,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813203101] [2022-02-21 03:08:55,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 03:08:55,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 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 03:08:55,471 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-21 03:08:55,475 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 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 03:08:55,484 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 03:08:55,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-21 03:08:55,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 03:08:55,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 03:08:55,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-21 03:08:55,509 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 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) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 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 03:08:55,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:08:55,848 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2022-02-21 03:08:55,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 03:08:55,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 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 03:08:55,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-21 03:08:55,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 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 03:08:55,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 59 transitions. [2022-02-21 03:08:55,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 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 03:08:55,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 59 transitions. [2022-02-21 03:08:55,865 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 59 transitions. [2022-02-21 03:08:55,927 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:08:55,944 INFO L225 Difference]: With dead ends: 56 [2022-02-21 03:08:55,945 INFO L226 Difference]: Without dead ends: 47 [2022-02-21 03:08:55,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-21 03:08:55,952 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 53 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-21 03:08:55,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 76 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-21 03:08:55,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-02-21 03:08:56,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 38. [2022-02-21 03:08:56,000 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 03:08:56,002 INFO L82 GeneralOperation]: Start isEquivalent. First operand 47 states. Second operand has 38 states, 25 states have (on average 1.56) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-21 03:08:56,004 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand has 38 states, 25 states have (on average 1.56) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-21 03:08:56,004 INFO L87 Difference]: Start difference. First operand 47 states. Second operand has 38 states, 25 states have (on average 1.56) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-21 03:08:56,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:08:56,014 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2022-02-21 03:08:56,014 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2022-02-21 03:08:56,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:08:56,015 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:08:56,016 INFO L74 IsIncluded]: Start isIncluded. First operand has 38 states, 25 states have (on average 1.56) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 47 states. [2022-02-21 03:08:56,018 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.56) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 47 states. [2022-02-21 03:08:56,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:08:56,026 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2022-02-21 03:08:56,026 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2022-02-21 03:08:56,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:08:56,027 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:08:56,028 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 03:08:56,028 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 03:08:56,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.56) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-21 03:08:56,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2022-02-21 03:08:56,033 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 6 [2022-02-21 03:08:56,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-21 03:08:56,033 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2022-02-21 03:08:56,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 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 03:08:56,034 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-02-21 03:08:56,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-02-21 03:08:56,034 INFO L506 BasicCegarLoop]: Found error trace [2022-02-21 03:08:56,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-02-21 03:08:56,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-21 03:08:56,035 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-02-21 03:08:56,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:08:56,036 INFO L85 PathProgramCache]: Analyzing trace with hash 890531696, now seen corresponding path program 1 times [2022-02-21 03:08:56,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:08:56,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107843888] [2022-02-21 03:08:56,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:08:56,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:08:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:08:56,082 INFO L290 TraceCheckUtils]: 0: Hoare triple {244#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {244#true} is VALID [2022-02-21 03:08:56,083 INFO L290 TraceCheckUtils]: 1: Hoare triple {244#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret7#1, main_~a~0#1, main_~b~0#1, main_~result~0#1;assume -2147483648 <= main_#t~nondet5#1 && main_#t~nondet5#1 <= 2147483647;main_~a~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;assume -2147483648 <= main_#t~nondet6#1 && main_#t~nondet6#1 <= 2147483647;main_~b~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; {246#(<= |ULTIMATE.start_main_~a~0#1| 2147483647)} is VALID [2022-02-21 03:08:56,084 INFO L272 TraceCheckUtils]: 2: Hoare triple {246#(<= |ULTIMATE.start_main_~a~0#1| 2147483647)} call main_#t~ret7#1 := sum(main_~a~0#1, main_~b~0#1); {247#(<= |sum_#in~n| 2147483647)} is VALID [2022-02-21 03:08:56,084 INFO L290 TraceCheckUtils]: 3: Hoare triple {247#(<= |sum_#in~n| 2147483647)} ~n := #in~n;~m := #in~m; {248#(<= sum_~n 2147483647)} is VALID [2022-02-21 03:08:56,085 INFO L290 TraceCheckUtils]: 4: Hoare triple {248#(<= sum_~n 2147483647)} assume !(~n <= 0); {248#(<= sum_~n 2147483647)} is VALID [2022-02-21 03:08:56,085 INFO L290 TraceCheckUtils]: 5: Hoare triple {248#(<= sum_~n 2147483647)} assume !(~n - 1 <= 2147483647); {245#false} is VALID [2022-02-21 03:08:56,086 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 03:08:56,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 03:08:56,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107843888] [2022-02-21 03:08:56,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107843888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 03:08:56,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 03:08:56,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 03:08:56,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093454076] [2022-02-21 03:08:56,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 03:08:56,089 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 03:08:56,089 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-21 03:08:56,089 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 03:08:56,095 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 03:08:56,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-21 03:08:56,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 03:08:56,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 03:08:56,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 03:08:56,097 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. 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 03:08:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:08:56,208 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2022-02-21 03:08:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 03:08:56,208 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 03:08:56,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-21 03:08:56,209 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 03:08:56,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2022-02-21 03:08:56,213 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 03:08:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2022-02-21 03:08:56,217 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 27 transitions. [2022-02-21 03:08:56,243 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:08:56,245 INFO L225 Difference]: With dead ends: 38 [2022-02-21 03:08:56,245 INFO L226 Difference]: Without dead ends: 37 [2022-02-21 03:08:56,245 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 03:08:56,247 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-21 03:08:56,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 26 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-21 03:08:56,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-02-21 03:08:56,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-02-21 03:08:56,260 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 03:08:56,260 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand has 37 states, 25 states have (on average 1.48) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-21 03:08:56,261 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand has 37 states, 25 states have (on average 1.48) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-21 03:08:56,261 INFO L87 Difference]: Start difference. First operand 37 states. Second operand has 37 states, 25 states have (on average 1.48) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-21 03:08:56,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:08:56,264 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2022-02-21 03:08:56,264 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-02-21 03:08:56,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:08:56,265 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:08:56,265 INFO L74 IsIncluded]: Start isIncluded. First operand has 37 states, 25 states have (on average 1.48) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 37 states. [2022-02-21 03:08:56,266 INFO L87 Difference]: Start difference. First operand has 37 states, 25 states have (on average 1.48) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 37 states. [2022-02-21 03:08:56,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:08:56,268 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2022-02-21 03:08:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-02-21 03:08:56,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:08:56,269 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:08:56,269 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 03:08:56,270 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 03:08:56,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.48) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-21 03:08:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-02-21 03:08:56,273 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 6 [2022-02-21 03:08:56,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-21 03:08:56,273 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-02-21 03:08:56,273 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 03:08:56,274 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-02-21 03:08:56,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-21 03:08:56,274 INFO L506 BasicCegarLoop]: Found error trace [2022-02-21 03:08:56,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 03:08:56,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-21 03:08:56,275 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-02-21 03:08:56,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:08:56,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1836673896, now seen corresponding path program 1 times [2022-02-21 03:08:56,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:08:56,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807549281] [2022-02-21 03:08:56,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:08:56,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:08:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:08:56,292 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:08:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:08:56,324 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:08:56,325 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-21 03:08:56,326 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-02-21 03:08:56,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-02-21 03:08:56,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-02-21 03:08:56,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-02-21 03:08:56,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-02-21 03:08:56,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-02-21 03:08:56,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-02-21 03:08:56,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-02-21 03:08:56,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-21 03:08:56,332 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-21 03:08:56,336 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-21 03:08:56,353 FATAL L489 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call #t~ret7 := sum(~a~0, ~b~0); [2022-02-21 03:08:56,354 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 03:08:56,360 INFO L158 Benchmark]: Toolchain (without parser) took 1961.02ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 81.8MB in the beginning and 110.9MB in the end (delta: -29.1MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2022-02-21 03:08:56,361 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory was 66.3MB in the beginning and 66.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:08:56,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.60ms. Allocated memory is still 111.1MB. Free memory was 81.5MB in the beginning and 87.8MB in the end (delta: -6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 03:08:56,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.87ms. Allocated memory is still 111.1MB. Free memory was 87.8MB in the beginning and 86.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:08:56,365 INFO L158 Benchmark]: Boogie Preprocessor took 32.51ms. Allocated memory is still 111.1MB. Free memory was 86.2MB in the beginning and 85.3MB in the end (delta: 937.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:08:56,365 INFO L158 Benchmark]: RCFGBuilder took 363.87ms. Allocated memory is still 111.1MB. Free memory was 85.3MB in the beginning and 73.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 03:08:56,366 INFO L158 Benchmark]: TraceAbstraction took 1325.81ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 73.1MB in the beginning and 110.9MB in the end (delta: -37.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-02-21 03:08:56,370 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 0.19ms. Allocated memory is still 111.1MB. Free memory was 66.3MB in the beginning and 66.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.60ms. Allocated memory is still 111.1MB. Free memory was 81.5MB in the beginning and 87.8MB in the end (delta: -6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.87ms. Allocated memory is still 111.1MB. Free memory was 87.8MB in the beginning and 86.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.51ms. Allocated memory is still 111.1MB. Free memory was 86.2MB in the beginning and 85.3MB in the end (delta: 937.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.87ms. Allocated memory is still 111.1MB. Free memory was 85.3MB in the beginning and 73.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1325.81ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 73.1MB in the beginning and 110.9MB in the end (delta: -37.7MB). Peak memory consumption was 33.6MB. 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. [2022-02-21 03:08:56,408 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*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator