./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.13.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-Ex2.13.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 cdf6d3d37a0c9deca41e9c71274e99ccf59bf4a2 ................................................................................................................................................................................................................................................ 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 01:23:26,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:23:26,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:23:26,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:23:26,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:23:26,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:23:26,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:23:26,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:23:26,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:23:26,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:23:26,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:23:26,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:23:26,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:23:26,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:23:26,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:23:26,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:23:26,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:23:26,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:23:26,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:23:26,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:23:26,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:23:26,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:23:26,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:23:26,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:23:26,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:23:26,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:23:26,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:23:26,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:23:26,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:23:26,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:23:26,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:23:26,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:23:26,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:23:26,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:23:26,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:23:26,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:23:26,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:23:26,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:23:26,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:23:26,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:23:26,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:23:26,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-07-29 01:23:26,980 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:23:26,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:23:26,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:23:26,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:23:26,984 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:23:26,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:23:26,985 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:23:26,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:23:26,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:23:26,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:23:26,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:23:26,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:23:26,987 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:23:26,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:23:26,987 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:23:26,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:23:26,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:23:26,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:23:26,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:23:26,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:23:26,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:23:26,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:23:26,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:23:26,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:23:26,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:23:26,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:23:26,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:23:26,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:23:26,992 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 -> cdf6d3d37a0c9deca41e9c71274e99ccf59bf4a2 [2020-07-29 01:23:27,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:23:27,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:23:27,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:23:27,352 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:23:27,353 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:23:27,354 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.13.c [2020-07-29 01:23:27,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c670a4795/ad876e6563244e6e8c393870dccd27f9/FLAGd86467c1c [2020-07-29 01:23:27,947 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:23:27,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.13.c [2020-07-29 01:23:27,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c670a4795/ad876e6563244e6e8c393870dccd27f9/FLAGd86467c1c [2020-07-29 01:23:28,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c670a4795/ad876e6563244e6e8c393870dccd27f9 [2020-07-29 01:23:28,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:23:28,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:23:28,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:28,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:23:28,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:23:28,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:28" (1/1) ... [2020-07-29 01:23:28,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66afa4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28, skipping insertion in model container [2020-07-29 01:23:28,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:28" (1/1) ... [2020-07-29 01:23:28,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:23:28,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:23:28,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:28,576 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:23:28,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:28,617 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:23:28,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28 WrapperNode [2020-07-29 01:23:28,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:28,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:28,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:23:28,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:23:28,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28" (1/1) ... [2020-07-29 01:23:28,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28" (1/1) ... [2020-07-29 01:23:28,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:28,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:23:28,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:23:28,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:23:28,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28" (1/1) ... [2020-07-29 01:23:28,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28" (1/1) ... [2020-07-29 01:23:28,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28" (1/1) ... [2020-07-29 01:23:28,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28" (1/1) ... [2020-07-29 01:23:28,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28" (1/1) ... [2020-07-29 01:23:28,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28" (1/1) ... [2020-07-29 01:23:28,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28" (1/1) ... [2020-07-29 01:23:28,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:23:28,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:23:28,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:23:28,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:23:28,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28" (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 01:23:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:23:28,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:23:29,078 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:23:29,079 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:23:29,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:29 BoogieIcfgContainer [2020-07-29 01:23:29,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:23:29,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:23:29,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:23:29,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:23:29,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:23:28" (1/3) ... [2020-07-29 01:23:29,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b81e8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:29, skipping insertion in model container [2020-07-29 01:23:29,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:28" (2/3) ... [2020-07-29 01:23:29,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b81e8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:29, skipping insertion in model container [2020-07-29 01:23:29,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:29" (3/3) ... [2020-07-29 01:23:29,094 INFO L109 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.13.c [2020-07-29 01:23:29,109 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:23:29,123 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-07-29 01:23:29,154 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-07-29 01:23:29,185 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:23:29,185 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:23:29,185 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:23:29,186 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:23:29,186 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:23:29,186 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:23:29,187 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:23:29,187 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:23:29,207 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-29 01:23:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-07-29 01:23:29,213 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:29,214 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-07-29 01:23:29,215 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:23:29,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:29,221 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2020-07-29 01:23:29,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:29,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572780346] [2020-07-29 01:23:29,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:23:29,332 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:23:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:23:29,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:23:29,357 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:23:29,358 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-29 01:23:29,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:23:29,377 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-29 01:23:29,378 WARN L170 areAnnotationChecker]: L26-4 has no Hoare annotation [2020-07-29 01:23:29,378 WARN L170 areAnnotationChecker]: L26-4 has no Hoare annotation [2020-07-29 01:23:29,378 WARN L170 areAnnotationChecker]: L26-4 has no Hoare annotation [2020-07-29 01:23:29,378 WARN L170 areAnnotationChecker]: L26-5 has no Hoare annotation [2020-07-29 01:23:29,378 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2020-07-29 01:23:29,378 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2020-07-29 01:23:29,379 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-29 01:23:29,379 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2020-07-29 01:23:29,379 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2020-07-29 01:23:29,379 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-29 01:23:29,379 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-29 01:23:29,380 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-29 01:23:29,380 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-29 01:23:29,380 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-29 01:23:29,380 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-29 01:23:29,380 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-29 01:23:29,380 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-29 01:23:29,381 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-29 01:23:29,381 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 01:23:29,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.07 01:23:29 BoogieIcfgContainer [2020-07-29 01:23:29,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-29 01:23:29,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:23:29,385 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:23:29,385 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:23:29,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:29" (3/4) ... [2020-07-29 01:23:29,389 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-29 01:23:29,430 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 01:23:29,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:23:29,434 INFO L168 Benchmark]: Toolchain (without parser) took 1132.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -138.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:29,435 INFO L168 Benchmark]: CDTParser took 0.40 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 01:23:29,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.66 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:29,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.53 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:23:29,437 INFO L168 Benchmark]: Boogie Preprocessor took 115.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:29,438 INFO L168 Benchmark]: RCFGBuilder took 302.25 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: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:29,439 INFO L168 Benchmark]: TraceAbstraction took 299.33 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:29,439 INFO L168 Benchmark]: Witness Printer took 46.07 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 01:23:29,443 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 0.40 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 315.66 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 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 45.53 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 115.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 302.25 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: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 299.33 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 46.07 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: 26]: 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] x - y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 6 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=18occurred 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, 2 NumberOfCodeBlocks, 2 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...