./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Ackermann-1.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/Ackermann-1.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 5917ee93972738bd406398210804e4342159e8a8 ........................................................................................................................................................................................................................................ 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 01:22:32,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:22:32,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:22:32,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:22:32,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:22:32,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:22:32,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:22:32,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:22:32,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:22:32,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:22:32,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:22:32,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:22:32,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:22:32,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:22:32,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:22:32,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:22:32,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:22:32,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:22:32,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:22:32,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:22:32,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:22:32,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:22:32,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:22:32,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:22:32,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:22:32,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:22:32,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:22:32,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:22:32,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:22:32,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:22:32,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:22:32,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:22:32,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:22:32,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:22:32,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:22:32,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:22:32,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:22:32,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:22:32,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:22:32,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:22:32,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:22:32,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-07-29 01:22:32,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:22:32,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:22:32,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:22:32,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:22:32,177 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:22:32,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:22:32,178 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:22:32,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:22:32,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:22:32,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:22:32,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:22:32,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:22:32,181 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:22:32,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:22:32,182 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:22:32,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:22:32,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:22:32,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:22:32,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:22:32,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:22:32,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:22:32,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:22:32,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:22:32,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:22:32,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:22:32,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:22:32,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:22:32,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:22:32,186 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 -> 5917ee93972738bd406398210804e4342159e8a8 [2020-07-29 01:22:32,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:22:32,529 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:22:32,533 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:22:32,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:22:32,535 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:22:32,536 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Ackermann-1.c [2020-07-29 01:22:32,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2305cc751/f2a0a4cdda93459482a03e645e108927/FLAGacd0ab565 [2020-07-29 01:22:33,113 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:22:33,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Ackermann-1.c [2020-07-29 01:22:33,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2305cc751/f2a0a4cdda93459482a03e645e108927/FLAGacd0ab565 [2020-07-29 01:22:33,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2305cc751/f2a0a4cdda93459482a03e645e108927 [2020-07-29 01:22:33,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:22:33,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:22:33,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:22:33,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:22:33,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:22:33,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:22:33" (1/1) ... [2020-07-29 01:22:33,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cab78e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33, skipping insertion in model container [2020-07-29 01:22:33,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:22:33" (1/1) ... [2020-07-29 01:22:33,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:22:33,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:22:33,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:22:33,765 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:22:33,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:22:33,802 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:22:33,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33 WrapperNode [2020-07-29 01:22:33,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:22:33,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:22:33,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:22:33,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:22:33,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33" (1/1) ... [2020-07-29 01:22:33,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33" (1/1) ... [2020-07-29 01:22:33,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:22:33,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:22:33,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:22:33,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:22:33,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33" (1/1) ... [2020-07-29 01:22:33,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33" (1/1) ... [2020-07-29 01:22:33,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33" (1/1) ... [2020-07-29 01:22:33,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33" (1/1) ... [2020-07-29 01:22:33,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33" (1/1) ... [2020-07-29 01:22:33,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33" (1/1) ... [2020-07-29 01:22:33,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33" (1/1) ... [2020-07-29 01:22:33,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:22:33,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:22:33,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:22:33,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:22:33,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33" (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 01:22:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure Ack [2020-07-29 01:22:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure Ack [2020-07-29 01:22:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:22:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:22:34,365 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:22:34,365 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-29 01:22:34,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:22:34 BoogieIcfgContainer [2020-07-29 01:22:34,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:22:34,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:22:34,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:22:34,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:22:34,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:22:33" (1/3) ... [2020-07-29 01:22:34,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497ace4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:22:34, skipping insertion in model container [2020-07-29 01:22:34,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:22:33" (2/3) ... [2020-07-29 01:22:34,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497ace4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:22:34, skipping insertion in model container [2020-07-29 01:22:34,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:22:34" (3/3) ... [2020-07-29 01:22:34,379 INFO L109 eAbstractionObserver]: Analyzing ICFG Ackermann-1.c [2020-07-29 01:22:34,391 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:22:34,399 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-07-29 01:22:34,414 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-07-29 01:22:34,439 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:22:34,439 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:22:34,439 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:22:34,439 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:22:34,440 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:22:34,440 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:22:34,440 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:22:34,440 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:22:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-07-29 01:22:34,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-29 01:22:34,481 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:22:34,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-29 01:22:34,483 INFO L427 AbstractCegarLoop]: === Iteration 1 === [AckErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, AckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, AckErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, AckErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, AckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, AckErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, AckErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, AckErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:22:34,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:22:34,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1868849109, now seen corresponding path program 1 times [2020-07-29 01:22:34,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:22:34,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816465161] [2020-07-29 01:22:34,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:22:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:22:34,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:22:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:22:34,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:22:34,649 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:22:34,650 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-29 01:22:34,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:22:34,664 FATAL L488 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call #t~ret5 := Ack(~x~0, ~y~0); [2020-07-29 01:22:34,665 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 01:22:34,671 INFO L168 Benchmark]: Toolchain (without parser) took 1213.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 961.5 MB in the beginning and 1.1 GB in the end (delta: -134.6 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:22:34,672 INFO L168 Benchmark]: CDTParser took 0.27 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 01:22:34,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.04 ms. Allocated memory is still 1.0 GB. Free memory was 961.5 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:22:34,674 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:22:34,675 INFO L168 Benchmark]: Boogie Preprocessor took 34.50 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:22:34,676 INFO L168 Benchmark]: RCFGBuilder took 405.99 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2020-07-29 01:22:34,677 INFO L168 Benchmark]: TraceAbstraction took 296.21 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:22:34,682 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 0.27 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 344.04 ms. Allocated memory is still 1.0 GB. Free memory was 961.5 MB in the beginning and 950.8 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 124.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.50 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 405.99 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 296.21 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: 13.3 MB). Peak memory consumption was 13.3 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...