./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.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/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.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 8fcad1cc5c987e49a6afac90dd5119b31f7d391b ................................................................................................................................................................................................................................................................................................................... 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: null --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:23:18,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:23:18,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:23:18,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:23:18,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:23:18,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:23:18,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:23:18,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:23:18,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:23:18,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:23:18,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:23:18,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:23:18,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:23:18,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:23:18,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:23:18,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:23:18,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:23:18,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:23:18,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:23:18,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:23:18,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:23:18,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:23:18,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:23:18,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:23:18,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:23:18,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:23:18,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:23:18,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:23:18,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:23:18,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:23:18,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:23:18,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:23:18,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:23:18,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:23:18,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:23:18,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:23:18,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:23:18,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:23:18,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:23:18,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:23:18,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:23:18,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-07-29 01:23:18,465 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:23:18,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:23:18,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:23:18,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:23:18,469 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:23:18,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:23:18,470 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:23:18,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:23:18,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:23:18,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:23:18,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:23:18,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:23:18,472 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:23:18,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:23:18,473 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:23:18,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:23:18,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:23:18,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:23:18,474 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:23:18,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:23:18,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:23:18,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:23:18,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:23:18,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:23:18,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:23:18,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:23:18,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:23:18,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:23:18,478 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 -> 8fcad1cc5c987e49a6afac90dd5119b31f7d391b [2020-07-29 01:23:18,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:23:18,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:23:18,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:23:18,814 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:23:18,817 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:23:18,818 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2020-07-29 01:23:18,883 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b1d93a1d/fb43a6ef9fe04f9eabc77907344a9020/FLAGb498f3baa [2020-07-29 01:23:19,313 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:23:19,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2020-07-29 01:23:19,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b1d93a1d/fb43a6ef9fe04f9eabc77907344a9020/FLAGb498f3baa [2020-07-29 01:23:19,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b1d93a1d/fb43a6ef9fe04f9eabc77907344a9020 [2020-07-29 01:23:19,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:23:19,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:23:19,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:19,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:23:19,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:23:19,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:19" (1/1) ... [2020-07-29 01:23:19,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@439f00a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19, skipping insertion in model container [2020-07-29 01:23:19,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:19" (1/1) ... [2020-07-29 01:23:19,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:23:19,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:23:19,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:19,908 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:23:19,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:19,938 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:23:19,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19 WrapperNode [2020-07-29 01:23:19,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:19,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:19,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:23:19,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:23:19,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19" (1/1) ... [2020-07-29 01:23:19,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19" (1/1) ... [2020-07-29 01:23:20,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:20,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:23:20,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:23:20,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:23:20,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19" (1/1) ... [2020-07-29 01:23:20,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19" (1/1) ... [2020-07-29 01:23:20,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19" (1/1) ... [2020-07-29 01:23:20,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19" (1/1) ... [2020-07-29 01:23:20,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19" (1/1) ... [2020-07-29 01:23:20,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19" (1/1) ... [2020-07-29 01:23:20,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19" (1/1) ... [2020-07-29 01:23:20,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:23:20,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:23:20,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:23:20,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:23:20,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19" (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 01:23:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:23:20,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:23:20,356 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:23:20,356 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:23:20,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:20 BoogieIcfgContainer [2020-07-29 01:23:20,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:23:20,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:23:20,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:23:20,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:23:20,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:23:19" (1/3) ... [2020-07-29 01:23:20,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4c2a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:20, skipping insertion in model container [2020-07-29 01:23:20,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:19" (2/3) ... [2020-07-29 01:23:20,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4c2a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:20, skipping insertion in model container [2020-07-29 01:23:20,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:20" (3/3) ... [2020-07-29 01:23:20,370 INFO L109 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2020-07-29 01:23:20,381 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:23:20,394 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-07-29 01:23:20,413 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-29 01:23:20,443 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:23:20,444 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:23:20,444 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:23:20,444 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:23:20,444 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:23:20,444 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:23:20,444 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:23:20,444 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:23:20,465 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-07-29 01:23:20,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-29 01:23:20,472 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:20,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-29 01:23:20,474 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:23:20,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:20,491 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-07-29 01:23:20,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:20,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595564436] [2020-07-29 01:23:20,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:23:20,676 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#true} havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := 0;main_~y~0 := 100;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~z~0 := main_#t~nondet0;havoc main_#t~nondet0; {20#(<= ULTIMATE.start_main_~x~0 0)} is VALID [2020-07-29 01:23:20,678 INFO L280 TraceCheckUtils]: 1: Hoare triple {20#(<= ULTIMATE.start_main_~x~0 0)} assume !!(main_~x~0 < 40); {20#(<= ULTIMATE.start_main_~x~0 0)} is VALID [2020-07-29 01:23:20,679 INFO L280 TraceCheckUtils]: 2: Hoare triple {20#(<= ULTIMATE.start_main_~x~0 0)} assume !(0 == main_~z~0); {20#(<= ULTIMATE.start_main_~x~0 0)} is VALID [2020-07-29 01:23:20,680 INFO L280 TraceCheckUtils]: 3: Hoare triple {20#(<= ULTIMATE.start_main_~x~0 0)} assume !(2 + main_~x~0 <= 2147483647); {19#false} is VALID [2020-07-29 01:23:20,682 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 01:23:20,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595564436] [2020-07-29 01:23:20,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:23:20,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-29 01:23:20,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033401817] [2020-07-29 01:23:20,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:23:20,691 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:23:20,694 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:23:20,721 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:23:20,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:23:20,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:23:20,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:23:20,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:23:20,733 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-07-29 01:23:20,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:20,860 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2020-07-29 01:23:20,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:23:20,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-29 01:23:20,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:23:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:20,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2020-07-29 01:23:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:23:20,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2020-07-29 01:23:20,871 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 33 transitions. [2020-07-29 01:23:20,930 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:23:20,941 INFO L225 Difference]: With dead ends: 27 [2020-07-29 01:23:20,941 INFO L226 Difference]: Without dead ends: 17 [2020-07-29 01:23:20,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:23:20,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-07-29 01:23:20,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2020-07-29 01:23:20,979 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:23:20,980 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand 15 states. [2020-07-29 01:23:20,981 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 15 states. [2020-07-29 01:23:20,981 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 15 states. [2020-07-29 01:23:20,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:20,984 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2020-07-29 01:23:20,985 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2020-07-29 01:23:20,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:20,986 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:20,986 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 17 states. [2020-07-29 01:23:20,986 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 17 states. [2020-07-29 01:23:20,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:23:20,989 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2020-07-29 01:23:20,989 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2020-07-29 01:23:20,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:23:20,991 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:23:20,991 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:23:20,992 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:23:20,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-29 01:23:20,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-07-29 01:23:20,995 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2020-07-29 01:23:20,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:23:20,996 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-07-29 01:23:20,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:23:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-07-29 01:23:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-29 01:23:20,997 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:20,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-29 01:23:20,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:23:20,998 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:23:20,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:20,999 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-07-29 01:23:20,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:20,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274975943] [2020-07-29 01:23:21,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:23:21,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-29 01:23:21,009 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) 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 01:23:21,017 INFO L168 Benchmark]: Toolchain (without parser) took 1300.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -110.5 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:21,018 INFO L168 Benchmark]: CDTParser took 0.29 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 01:23:21,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.36 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 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 01:23:21,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:21,020 INFO L168 Benchmark]: Boogie Preprocessor took 21.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:23:21,021 INFO L168 Benchmark]: RCFGBuilder took 309.77 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 01:23:21,022 INFO L168 Benchmark]: TraceAbstraction took 652.17 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:21,026 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 0.29 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 221.36 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 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 85.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 309.77 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 652.17 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...