./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_b3_o2-1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/id_b3_o2-1.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 a920ed9b3f96020f8bcfe1e60b1075faad4206fc ................................................................................................................................................................................................................................................................................................................. 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 --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:24:23,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:24:23,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:24:23,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:24:23,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:24:23,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:24:23,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:24:23,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:24:23,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:24:23,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:24:23,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:24:23,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:24:23,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:24:23,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:24:23,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:24:23,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:24:23,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:24:23,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:24:23,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:24:23,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:24:23,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:24:23,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:24:23,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:24:23,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:24:23,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:24:23,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:24:23,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:24:23,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:24:23,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:24:23,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:24:23,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:24:23,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:24:23,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:24:23,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:24:23,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:24:23,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:24:23,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:24:23,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:24:23,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:24:23,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:24:23,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:24:23,589 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-07-29 01:24:23,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:24:23,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:24:23,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:24:23,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:24:23,607 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:24:23,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:24:23,608 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 01:24:23,608 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:24:23,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:24:23,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 01:24:23,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:24:23,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:24:23,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:24:23,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:24:23,610 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:24:23,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 01:24:23,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:24:23,611 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:24:23,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:24:23,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:24:23,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:24:23,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:24:23,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:24:23,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:24:23,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:24:23,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:24:23,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:24:23,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:24:23,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:24:23,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:24:23,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:24:23,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> a920ed9b3f96020f8bcfe1e60b1075faad4206fc [2020-07-29 01:24:23,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:24:23,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:24:23,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:24:23,936 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:24:23,936 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:24:23,939 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_b3_o2-1.c [2020-07-29 01:24:24,006 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/499581508/94d68109c64440fa934dcfe047096598/FLAG98b3b5464 [2020-07-29 01:24:24,462 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:24:24,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_b3_o2-1.c [2020-07-29 01:24:24,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/499581508/94d68109c64440fa934dcfe047096598/FLAG98b3b5464 [2020-07-29 01:24:24,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/499581508/94d68109c64440fa934dcfe047096598 [2020-07-29 01:24:24,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:24:24,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:24:24,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:24:24,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:24:24,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:24:24,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:24:24" (1/1) ... [2020-07-29 01:24:24,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c421b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:24, skipping insertion in model container [2020-07-29 01:24:24,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:24:24" (1/1) ... [2020-07-29 01:24:24,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:24:24,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:24:25,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:24:25,113 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:24:25,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:24:25,144 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:24:25,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25 WrapperNode [2020-07-29 01:24:25,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:24:25,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:24:25,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:24:25,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:24:25,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25" (1/1) ... [2020-07-29 01:24:25,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25" (1/1) ... [2020-07-29 01:24:25,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:24:25,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:24:25,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:24:25,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:24:25,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25" (1/1) ... [2020-07-29 01:24:25,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25" (1/1) ... [2020-07-29 01:24:25,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25" (1/1) ... [2020-07-29 01:24:25,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25" (1/1) ... [2020-07-29 01:24:25,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25" (1/1) ... [2020-07-29 01:24:25,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25" (1/1) ... [2020-07-29 01:24:25,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25" (1/1) ... [2020-07-29 01:24:25,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:24:25,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:24:25,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:24:25,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:24:25,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:24:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:24:25,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:24:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-07-29 01:24:25,315 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-07-29 01:24:25,566 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:24:25,567 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-29 01:24:25,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:24:25 BoogieIcfgContainer [2020-07-29 01:24:25,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:24:25,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:24:25,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:24:25,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:24:25,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:24:24" (1/3) ... [2020-07-29 01:24:25,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2772954c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:24:25, skipping insertion in model container [2020-07-29 01:24:25,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:25" (2/3) ... [2020-07-29 01:24:25,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2772954c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:24:25, skipping insertion in model container [2020-07-29 01:24:25,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:24:25" (3/3) ... [2020-07-29 01:24:25,581 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b3_o2-1.c [2020-07-29 01:24:25,596 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:24:25,620 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-07-29 01:24:25,660 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-29 01:24:25,688 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:24:25,689 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:24:25,689 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:24:25,689 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:24:25,689 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:24:25,690 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:24:25,690 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:24:25,690 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:24:25,711 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-29 01:24:25,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-29 01:24:25,717 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:24:25,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-29 01:24:25,719 INFO L427 AbstractCegarLoop]: === Iteration 1 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:24:25,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:24:25,725 INFO L82 PathProgramCache]: Analyzing trace with hash 30579597, now seen corresponding path program 1 times [2020-07-29 01:24:25,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:24:25,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793603711] [2020-07-29 01:24:25,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:24:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:24:25,931 INFO L280 TraceCheckUtils]: 0: Hoare triple {26#true} havoc main_#res;havoc main_#t~nondet1, main_#t~ret2, main_~input~0, main_~result~0;assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647;main_~input~0 := main_#t~nondet1;havoc main_#t~nondet1; {28#(<= ULTIMATE.start_main_~input~0 2147483647)} is VALID [2020-07-29 01:24:25,933 INFO L263 TraceCheckUtils]: 1: Hoare triple {28#(<= ULTIMATE.start_main_~input~0 2147483647)} call main_#t~ret2 := id(main_~input~0); {29#(<= |id_#in~x| 2147483647)} is VALID [2020-07-29 01:24:25,935 INFO L280 TraceCheckUtils]: 2: Hoare triple {29#(<= |id_#in~x| 2147483647)} ~x := #in~x; {30#(<= id_~x 2147483647)} is VALID [2020-07-29 01:24:25,936 INFO L280 TraceCheckUtils]: 3: Hoare triple {30#(<= id_~x 2147483647)} assume !(0 == ~x); {30#(<= id_~x 2147483647)} is VALID [2020-07-29 01:24:25,937 INFO L280 TraceCheckUtils]: 4: Hoare triple {30#(<= id_~x 2147483647)} assume !(~x - 1 <= 2147483647); {27#false} is VALID [2020-07-29 01:24:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:24:25,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793603711] [2020-07-29 01:24:25,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:24:25,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 01:24:25,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538168382] [2020-07-29 01:24:25,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-07-29 01:24:25,950 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:24:25,953 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-29 01:24:25,978 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:24:25,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-29 01:24:25,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:24:25,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-29 01:24:25,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-29 01:24:25,991 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2020-07-29 01:24:26,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:26,184 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2020-07-29 01:24:26,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-29 01:24:26,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-07-29 01:24:26,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:24:26,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-29 01:24:26,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2020-07-29 01:24:26,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-29 01:24:26,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2020-07-29 01:24:26,201 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 28 transitions. [2020-07-29 01:24:26,255 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:24:26,268 INFO L225 Difference]: With dead ends: 26 [2020-07-29 01:24:26,268 INFO L226 Difference]: Without dead ends: 16 [2020-07-29 01:24:26,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-29 01:24:26,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-07-29 01:24:26,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-07-29 01:24:26,312 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:24:26,313 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 16 states. [2020-07-29 01:24:26,314 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-29 01:24:26,314 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-29 01:24:26,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:26,319 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2020-07-29 01:24:26,320 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-07-29 01:24:26,321 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:26,321 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:26,321 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-29 01:24:26,321 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-29 01:24:26,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:26,326 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2020-07-29 01:24:26,326 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-07-29 01:24:26,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:26,327 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:26,327 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:24:26,328 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:24:26,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-29 01:24:26,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-07-29 01:24:26,332 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 5 [2020-07-29 01:24:26,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:24:26,333 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-07-29 01:24:26,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-29 01:24:26,333 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-07-29 01:24:26,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-29 01:24:26,334 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:24:26,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-29 01:24:26,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:24:26,335 INFO L427 AbstractCegarLoop]: === Iteration 2 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:24:26,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:24:26,335 INFO L82 PathProgramCache]: Analyzing trace with hash 947967559, now seen corresponding path program 1 times [2020-07-29 01:24:26,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:24:26,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413902520] [2020-07-29 01:24:26,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:24:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:24:26,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:24:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:24:26,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:24:26,371 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:24:26,371 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-29 01:24:26,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-29 01:24:26,384 FATAL L488 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call #t~ret2 := id(~input~0); [2020-07-29 01:24:26,385 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:216) 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:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportCounterexampleResult(TraceAbstractionStarter.java:626) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResults(TraceAbstractionStarter.java:525) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:383) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-29 01:24:26,392 INFO L168 Benchmark]: Toolchain (without parser) took 1507.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 962.9 MB in the beginning and 1.1 GB in the end (delta: -92.6 MB). Peak memory consumption was 45.9 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:26,393 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:24:26,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.77 ms. Allocated memory is still 1.0 GB. Free memory was 962.9 MB in the beginning and 952.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:26,395 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.00 ms. Allocated memory is still 1.0 GB. Free memory is still 952.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:24:26,396 INFO L168 Benchmark]: Boogie Preprocessor took 74.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:26,397 INFO L168 Benchmark]: RCFGBuilder took 314.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:26,398 INFO L168 Benchmark]: TraceAbstraction took 815.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:26,402 INFO L336 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 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 257.77 ms. Allocated memory is still 1.0 GB. Free memory was 962.9 MB in the beginning and 952.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.00 ms. Allocated memory is still 1.0 GB. Free memory is still 952.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 314.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 815.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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:216) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...