./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.01.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/ChenFlurMukhopadhyay-SAS2012-Ex2.01.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 d27b1f45a1cfbb95420090f54ec18e9df0353681 ............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:23:22,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:23:22,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:23:22,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:23:22,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:23:22,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:23:22,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:23:22,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:23:22,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:23:22,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:23:22,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:23:22,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:23:22,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:23:22,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:23:22,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:23:22,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:23:22,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:23:22,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:23:22,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:23:22,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:23:22,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:23:22,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:23:22,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:23:22,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:23:22,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:23:22,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:23:22,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:23:22,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:23:22,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:23:22,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:23:22,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:23:22,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:23:22,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:23:22,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:23:22,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:23:22,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:23:22,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:23:22,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:23:22,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:23:22,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:23:22,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:23:22,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-07-29 01:23:22,160 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:23:22,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:23:22,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:23:22,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:23:22,162 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:23:22,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:23:22,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:23:22,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:23:22,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:23:22,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:23:22,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:23:22,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:23:22,164 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:23:22,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:23:22,164 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:23:22,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:23:22,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:23:22,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:23:22,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:23:22,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:23:22,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:23:22,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:23:22,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:23:22,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:23:22,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:23:22,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:23:22,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:23:22,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:23:22,168 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 -> d27b1f45a1cfbb95420090f54ec18e9df0353681 [2020-07-29 01:23:22,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:23:22,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:23:22,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:23:22,538 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:23:22,541 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:23:22,542 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.01.c [2020-07-29 01:23:22,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3434e9f62/ab5f5db8378b4b828fb11a365afe2dab/FLAG7c2f8a123 [2020-07-29 01:23:23,091 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:23:23,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.01.c [2020-07-29 01:23:23,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3434e9f62/ab5f5db8378b4b828fb11a365afe2dab/FLAG7c2f8a123 [2020-07-29 01:23:23,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3434e9f62/ab5f5db8378b4b828fb11a365afe2dab [2020-07-29 01:23:23,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:23:23,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:23:23,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:23,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:23:23,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:23:23,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:23" (1/1) ... [2020-07-29 01:23:23,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6041b9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23, skipping insertion in model container [2020-07-29 01:23:23,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:23" (1/1) ... [2020-07-29 01:23:23,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:23:23,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:23:23,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:23,667 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:23:23,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:23,694 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:23:23,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23 WrapperNode [2020-07-29 01:23:23,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:23,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:23,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:23:23,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:23:23,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23" (1/1) ... [2020-07-29 01:23:23,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23" (1/1) ... [2020-07-29 01:23:23,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:23,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:23:23,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:23:23,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:23:23,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23" (1/1) ... [2020-07-29 01:23:23,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23" (1/1) ... [2020-07-29 01:23:23,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23" (1/1) ... [2020-07-29 01:23:23,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23" (1/1) ... [2020-07-29 01:23:23,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23" (1/1) ... [2020-07-29 01:23:23,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23" (1/1) ... [2020-07-29 01:23:23,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23" (1/1) ... [2020-07-29 01:23:23,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:23:23,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:23:23,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:23:23,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:23:23,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23" (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 01:23:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:23:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:23:24,051 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:23:24,052 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:23:24,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:24 BoogieIcfgContainer [2020-07-29 01:23:24,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:23:24,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:23:24,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:23:24,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:23:24,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:23:23" (1/3) ... [2020-07-29 01:23:24,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1736eba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:24, skipping insertion in model container [2020-07-29 01:23:24,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:23" (2/3) ... [2020-07-29 01:23:24,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1736eba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:24, skipping insertion in model container [2020-07-29 01:23:24,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:24" (3/3) ... [2020-07-29 01:23:24,062 INFO L109 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.01.c [2020-07-29 01:23:24,072 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:23:24,079 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-07-29 01:23:24,093 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-29 01:23:24,117 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:23:24,118 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:23:24,118 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:23:24,118 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:23:24,118 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:23:24,118 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:23:24,118 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:23:24,118 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:23:24,134 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-07-29 01:23:24,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-29 01:23:24,140 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:24,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-29 01:23:24,141 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:23:24,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:24,146 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-07-29 01:23:24,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:24,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649621131] [2020-07-29 01:23:24,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:23:24,237 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:23:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:23:24,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:23:24,261 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:23:24,262 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-29 01:23:24,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:23:24,281 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-29 01:23:24,282 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2020-07-29 01:23:24,282 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2020-07-29 01:23:24,282 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2020-07-29 01:23:24,282 WARN L170 areAnnotationChecker]: L26-3 has no Hoare annotation [2020-07-29 01:23:24,282 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-29 01:23:24,282 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-29 01:23:24,283 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-29 01:23:24,283 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-29 01:23:24,283 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-29 01:23:24,283 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-29 01:23:24,283 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-29 01:23:24,284 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-29 01:23:24,284 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-29 01:23:24,284 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-29 01:23:24,284 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-29 01:23:24,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.07 01:23:24 BoogieIcfgContainer [2020-07-29 01:23:24,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-29 01:23:24,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:23:24,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:23:24,288 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:23:24,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:24" (3/4) ... [2020-07-29 01:23:24,292 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-29 01:23:24,337 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 01:23:24,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:23:24,341 INFO L168 Benchmark]: Toolchain (without parser) took 893.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:23:24,341 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:23:24,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.54 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:24,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.34 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:23:24,344 INFO L168 Benchmark]: Boogie Preprocessor took 74.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -199.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:24,344 INFO L168 Benchmark]: RCFGBuilder took 255.43 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: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:24,345 INFO L168 Benchmark]: TraceAbstraction took 231.58 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:24,346 INFO L168 Benchmark]: Witness Printer took 49.00 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 01:23:24,350 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 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 246.54 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 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 28.34 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -199.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 255.43 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: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 231.58 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Witness Printer took 49.00 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 27]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x > 0 [L27] x + y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...