./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/joey.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- 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/termination-crafted-lit/joey.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6360f720317c1229a4bb277806239106bfb4e5c0 ............................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:23:59,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:23:59,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:23:59,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:23:59,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:23:59,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:23:59,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:23:59,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:23:59,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:23:59,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:23:59,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:23:59,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:23:59,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:23:59,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:23:59,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:23:59,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:23:59,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:23:59,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:23:59,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:23:59,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:23:59,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:23:59,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:23:59,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:23:59,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:23:59,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:23:59,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:23:59,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:23:59,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:23:59,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:23:59,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:23:59,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:23:59,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:23:59,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:23:59,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:23:59,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:23:59,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:23:59,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:23:59,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:23:59,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:23:59,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:23:59,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:23:59,624 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-07-29 01:23:59,653 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:23:59,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:23:59,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:23:59,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:23:59,665 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:23:59,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:23:59,665 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:23:59,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:23:59,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:23:59,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:23:59,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:23:59,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:23:59,666 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:23:59,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:23:59,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:23:59,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:23:59,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:23:59,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:23:59,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:23:59,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:23:59,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:23:59,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:23:59,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:23:59,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:23:59,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:23:59,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:23:59,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:23:59,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:23:59,671 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6360f720317c1229a4bb277806239106bfb4e5c0 [2020-07-29 01:23:59,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:24:00,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:24:00,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:24:00,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:24:00,010 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:24:00,011 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/joey.c [2020-07-29 01:24:00,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7fb5108a/2092ed58c02546b5a73ac80961689d51/FLAGdc234d712 [2020-07-29 01:24:00,554 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:24:00,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/joey.c [2020-07-29 01:24:00,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7fb5108a/2092ed58c02546b5a73ac80961689d51/FLAGdc234d712 [2020-07-29 01:24:00,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7fb5108a/2092ed58c02546b5a73ac80961689d51 [2020-07-29 01:24:00,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:24:00,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:24:00,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:24:00,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:24:00,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:24:00,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:24:00" (1/1) ... [2020-07-29 01:24:00,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc8aa3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:00, skipping insertion in model container [2020-07-29 01:24:00,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:24:00" (1/1) ... [2020-07-29 01:24:00,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:24:00,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:24:01,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:24:01,171 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:24:01,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:24:01,211 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:24:01,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01 WrapperNode [2020-07-29 01:24:01,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:24:01,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:24:01,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:24:01,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:24:01,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01" (1/1) ... [2020-07-29 01:24:01,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01" (1/1) ... [2020-07-29 01:24:01,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:24:01,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:24:01,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:24:01,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:24:01,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01" (1/1) ... [2020-07-29 01:24:01,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01" (1/1) ... [2020-07-29 01:24:01,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01" (1/1) ... [2020-07-29 01:24:01,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01" (1/1) ... [2020-07-29 01:24:01,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01" (1/1) ... [2020-07-29 01:24:01,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01" (1/1) ... [2020-07-29 01:24:01,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01" (1/1) ... [2020-07-29 01:24:01,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:24:01,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:24:01,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:24:01,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:24:01,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01" (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 01:24:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2020-07-29 01:24:01,381 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2020-07-29 01:24:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:24:01,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:24:01,724 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:24:01,725 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-29 01:24:01,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:24:01 BoogieIcfgContainer [2020-07-29 01:24:01,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:24:01,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:24:01,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:24:01,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:24:01,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:24:00" (1/3) ... [2020-07-29 01:24:01,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64334c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:24:01, skipping insertion in model container [2020-07-29 01:24:01,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:24:01" (2/3) ... [2020-07-29 01:24:01,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64334c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:24:01, skipping insertion in model container [2020-07-29 01:24:01,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:24:01" (3/3) ... [2020-07-29 01:24:01,737 INFO L109 eAbstractionObserver]: Analyzing ICFG joey.c [2020-07-29 01:24:01,749 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:24:01,756 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-07-29 01:24:01,771 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-07-29 01:24:01,800 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:24:01,800 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:24:01,800 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:24:01,800 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:24:01,800 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:24:01,800 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:24:01,801 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:24:01,801 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:24:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-29 01:24:01,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-29 01:24:01,825 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:24:01,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-29 01:24:01,827 INFO L427 AbstractCegarLoop]: === Iteration 1 === [recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:24:01,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:24:01,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1873828178, now seen corresponding path program 1 times [2020-07-29 01:24:01,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:24:01,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616674191] [2020-07-29 01:24:01,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:24:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:24:02,137 INFO L280 TraceCheckUtils]: 0: Hoare triple {36#true} havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_~x~0, main_~y~0;assume -2147483648 <= main_#t~nondet5 && main_#t~nondet5 <= 2147483647;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;havoc main_~y~0; {38#(<= ULTIMATE.start_main_~x~0 2147483647)} is VALID [2020-07-29 01:24:02,139 INFO L263 TraceCheckUtils]: 1: Hoare triple {38#(<= ULTIMATE.start_main_~x~0 2147483647)} call main_#t~ret6 := rec(main_~x~0); {39#(<= |rec_#in~x| 2147483647)} is VALID [2020-07-29 01:24:02,141 INFO L280 TraceCheckUtils]: 2: Hoare triple {39#(<= |rec_#in~x| 2147483647)} ~x := #in~x; {40#(<= rec_~x 2147483647)} is VALID [2020-07-29 01:24:02,142 INFO L280 TraceCheckUtils]: 3: Hoare triple {40#(<= rec_~x 2147483647)} assume !(~x <= 0); {41#(and (<= rec_~x 2147483647) (<= 1 rec_~x))} is VALID [2020-07-29 01:24:02,144 INFO L280 TraceCheckUtils]: 4: Hoare triple {41#(and (<= rec_~x 2147483647) (<= 1 rec_~x))} assume 0 == (if ~x < 0 && 0 != ~x % 2 then ~x % 2 - 2 else ~x % 2); {42#(and (or (<= 0 rec_~x) (= (* 2 (div rec_~x 2)) rec_~x)) (<= (div rec_~x 2) 1073741823))} is VALID [2020-07-29 01:24:02,146 INFO L280 TraceCheckUtils]: 5: Hoare triple {42#(and (or (<= 0 rec_~x) (= (* 2 (div rec_~x 2)) rec_~x)) (<= (div rec_~x 2) 1073741823))} assume !((if ~x < 0 && 0 != ~x % 2 then 1 + ~x / 2 else ~x / 2) <= 2147483647); {37#false} is VALID [2020-07-29 01:24:02,149 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 01:24:02,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616674191] [2020-07-29 01:24:02,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:24:02,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-29 01:24:02,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178941762] [2020-07-29 01:24:02,159 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2020-07-29 01:24:02,161 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:24:02,165 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-29 01:24:02,184 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:24:02,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-29 01:24:02,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:24:02,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-29 01:24:02,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-29 01:24:02,196 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 7 states. [2020-07-29 01:24:02,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:02,766 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2020-07-29 01:24:02,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-29 01:24:02,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2020-07-29 01:24:02,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:24:02,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-29 01:24:02,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 80 transitions. [2020-07-29 01:24:02,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-29 01:24:02,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 80 transitions. [2020-07-29 01:24:02,788 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 80 transitions. [2020-07-29 01:24:02,940 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:24:02,956 INFO L225 Difference]: With dead ends: 66 [2020-07-29 01:24:02,956 INFO L226 Difference]: Without dead ends: 52 [2020-07-29 01:24:02,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-29 01:24:02,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-07-29 01:24:03,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2020-07-29 01:24:03,018 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:24:03,019 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second operand 45 states. [2020-07-29 01:24:03,020 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 45 states. [2020-07-29 01:24:03,020 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 45 states. [2020-07-29 01:24:03,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:03,031 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2020-07-29 01:24:03,032 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2020-07-29 01:24:03,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:03,035 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:03,035 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 52 states. [2020-07-29 01:24:03,036 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 52 states. [2020-07-29 01:24:03,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:24:03,044 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2020-07-29 01:24:03,044 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2020-07-29 01:24:03,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:24:03,047 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:24:03,047 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:24:03,048 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:24:03,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-29 01:24:03,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2020-07-29 01:24:03,054 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 6 [2020-07-29 01:24:03,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:24:03,055 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2020-07-29 01:24:03,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-29 01:24:03,056 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2020-07-29 01:24:03,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-29 01:24:03,057 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:24:03,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-29 01:24:03,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:24:03,058 INFO L427 AbstractCegarLoop]: === Iteration 2 === [recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:24:03,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:24:03,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1873828402, now seen corresponding path program 1 times [2020-07-29 01:24:03,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:24:03,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25463290] [2020-07-29 01:24:03,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:24:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:24:03,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:24:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:24:03,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:24:03,101 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:24:03,101 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-29 01:24:03,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-29 01:24:03,114 FATAL L488 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call #t~ret6 := rec(~x~0); [2020-07-29 01:24:03,116 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 01:24:03,122 INFO L168 Benchmark]: Toolchain (without parser) took 2184.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 960.2 MB in the beginning and 990.2 MB in the end (delta: -30.0 MB). Peak memory consumption was 108.4 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:03,123 INFO L168 Benchmark]: CDTParser took 0.19 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 01:24:03,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.11 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:03,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.34 ms. Allocated memory is still 1.0 GB. Free memory is still 948.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:24:03,126 INFO L168 Benchmark]: Boogie Preprocessor took 80.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:03,126 INFO L168 Benchmark]: RCFGBuilder took 410.41 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:03,127 INFO L168 Benchmark]: TraceAbstraction took 1388.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.2 MB in the end (delta: 112.6 MB). Peak memory consumption was 112.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:24:03,132 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 0.19 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 273.11 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.34 ms. Allocated memory is still 1.0 GB. Free memory is still 948.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 410.41 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1388.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.2 MB in the end (delta: 112.6 MB). Peak memory consumption was 112.6 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...