./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.05_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.05_false-no-overflow.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 1bebd801818b9b101d7eb2d8547d51da3469fca7 ........................................................................................................................................................................................................................... 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 0.1.24-91b1670 [2018-11-28 23:07:07,923 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:07:07,925 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:07:07,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:07:07,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:07:07,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:07:07,940 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:07:07,945 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:07:07,948 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:07:07,949 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:07:07,949 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:07:07,950 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:07:07,951 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:07:07,952 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:07:07,953 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:07:07,954 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:07:07,955 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:07:07,957 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:07:07,959 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:07:07,961 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:07:07,962 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:07:07,963 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:07:07,965 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:07:07,966 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:07:07,966 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:07:07,967 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:07:07,968 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:07:07,969 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:07:07,969 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:07:07,971 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:07:07,971 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:07:07,972 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:07:07,972 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:07:07,972 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:07:07,973 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:07:07,974 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:07:07,974 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:07:07,994 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:07:07,995 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:07:07,996 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:07:07,996 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:07:07,996 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:07:07,997 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:07:07,997 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:07:07,997 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:07:07,997 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:07:07,997 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:07:07,998 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:07:07,998 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:07:07,998 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:07:07,998 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:07:07,998 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:07:07,998 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:07:07,999 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:07:07,999 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:07:07,999 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:07:07,999 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:07:07,999 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:07:07,999 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:07:08,000 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:07:08,000 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:07:08,000 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:07:08,000 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:07:08,000 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:07:08,001 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:07:08,001 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:07:08,001 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> 1bebd801818b9b101d7eb2d8547d51da3469fca7 [2018-11-28 23:07:08,052 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:07:08,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:07:08,069 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:07:08,070 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:07:08,071 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:07:08,072 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.05_false-no-overflow.c [2018-11-28 23:07:08,128 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f219d7e/5c2855e75c124ba1b3c9e5942b38ff6c/FLAG982a90073 [2018-11-28 23:07:08,601 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:07:08,602 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.05_false-no-overflow.c [2018-11-28 23:07:08,607 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f219d7e/5c2855e75c124ba1b3c9e5942b38ff6c/FLAG982a90073 [2018-11-28 23:07:09,047 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f219d7e/5c2855e75c124ba1b3c9e5942b38ff6c [2018-11-28 23:07:09,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:07:09,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:07:09,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:07:09,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:07:09,058 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:07:09,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:07:09" (1/1) ... [2018-11-28 23:07:09,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3613db22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09, skipping insertion in model container [2018-11-28 23:07:09,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:07:09" (1/1) ... [2018-11-28 23:07:09,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:07:09,089 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:07:09,315 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:07:09,322 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:07:09,340 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:07:09,361 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:07:09,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09 WrapperNode [2018-11-28 23:07:09,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:07:09,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:07:09,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:07:09,363 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:07:09,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09" (1/1) ... [2018-11-28 23:07:09,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09" (1/1) ... [2018-11-28 23:07:09,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:07:09,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:07:09,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:07:09,392 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:07:09,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09" (1/1) ... [2018-11-28 23:07:09,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09" (1/1) ... [2018-11-28 23:07:09,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09" (1/1) ... [2018-11-28 23:07:09,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09" (1/1) ... [2018-11-28 23:07:09,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09" (1/1) ... [2018-11-28 23:07:09,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09" (1/1) ... [2018-11-28 23:07:09,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09" (1/1) ... [2018-11-28 23:07:09,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:07:09,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:07:09,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:07:09,420 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:07:09,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09" (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 [2018-11-28 23:07:09,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:07:09,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:07:09,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:07:09,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:07:09,610 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:07:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:07:09,870 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:07:09,870 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 23:07:09,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:09 BoogieIcfgContainer [2018-11-28 23:07:09,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:07:09,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:07:09,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:07:09,876 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:07:09,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:07:09" (1/3) ... [2018-11-28 23:07:09,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d988ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:07:09, skipping insertion in model container [2018-11-28 23:07:09,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:09" (2/3) ... [2018-11-28 23:07:09,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d988ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:07:09, skipping insertion in model container [2018-11-28 23:07:09,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:09" (3/3) ... [2018-11-28 23:07:09,881 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.05_false-no-overflow.c [2018-11-28 23:07:09,890 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:07:09,898 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 23:07:09,917 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 23:07:09,953 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:07:09,954 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:07:09,954 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:07:09,954 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:07:09,954 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:07:09,955 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:07:09,955 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:07:09,955 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:07:09,955 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:07:09,974 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-28 23:07:09,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 23:07:09,980 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:09,985 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:09,988 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:09,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:09,997 INFO L82 PathProgramCache]: Analyzing trace with hash -37667266, now seen corresponding path program 1 times [2018-11-28 23:07:10,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:10,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:10,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:10,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:10,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:07:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:07:10,138 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 23:07:10,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:07:10 BoogieIcfgContainer [2018-11-28 23:07:10,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:07:10,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:07:10,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:07:10,166 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:07:10,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:09" (3/4) ... [2018-11-28 23:07:10,170 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 23:07:10,211 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:07:10,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:07:10,212 INFO L168 Benchmark]: Toolchain (without parser) took 1161.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:10,214 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:10,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.48 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 931.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:10,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.24 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:10,216 INFO L168 Benchmark]: Boogie Preprocessor took 26.23 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:10,216 INFO L168 Benchmark]: RCFGBuilder took 453.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -202.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:10,217 INFO L168 Benchmark]: TraceAbstraction took 293.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:10,220 INFO L168 Benchmark]: Witness Printer took 45.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:10,228 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.48 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 931.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.24 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.23 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 453.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -202.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 293.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Witness Printer took 45.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L21] int x = __VERIFIER_nondet_int(); [L22] int y = __VERIFIER_nondet_int(); [L23] COND TRUE x < y VAL [x=1, y=2147483647] [L24] x + y VAL [x=1, y=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 4 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...