./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMax.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMax.i -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 ce066faa274819a77e953bddc0682abdc14550bc ......................................................................................................................................................................................................................... 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 0.1.25-906a4fb [2020-10-19 18:28:55,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:28:55,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:28:55,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:28:55,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:28:55,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:28:55,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:28:55,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:28:55,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:28:55,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:28:55,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:28:55,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:28:55,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:28:55,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:28:55,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:28:55,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:28:55,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:28:55,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:28:55,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:28:55,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:28:55,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:28:55,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:28:55,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:28:55,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:28:55,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:28:55,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:28:55,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:28:55,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:28:55,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:28:55,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:28:55,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:28:55,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:28:55,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:28:55,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:28:55,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:28:55,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:28:55,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:28:55,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:28:55,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:28:55,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:28:55,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:28:55,483 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-19 18:28:55,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:28:55,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:28:55,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:28:55,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:28:55,507 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:28:55,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:28:55,508 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:28:55,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:28:55,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:28:55,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:28:55,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:28:55,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:28:55,510 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:28:55,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:28:55,510 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:28:55,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:28:55,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:28:55,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:28:55,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:28:55,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:28:55,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:28:55,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:28:55,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:28:55,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:28:55,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:28:55,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:28:55,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:28:55,514 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:28:55,515 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 -> ce066faa274819a77e953bddc0682abdc14550bc [2020-10-19 18:28:55,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:28:55,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:28:55,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:28:55,851 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:28:55,851 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:28:55,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMax.i [2020-10-19 18:28:55,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dcf0e201/414dd97604064d2f8e3eba6073be98c4/FLAG102d90c91 [2020-10-19 18:28:56,444 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:28:56,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMax.i [2020-10-19 18:28:56,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dcf0e201/414dd97604064d2f8e3eba6073be98c4/FLAG102d90c91 [2020-10-19 18:28:56,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dcf0e201/414dd97604064d2f8e3eba6073be98c4 [2020-10-19 18:28:56,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:28:56,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:28:56,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:28:56,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:28:56,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:28:56,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:28:56" (1/1) ... [2020-10-19 18:28:56,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54212748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:56, skipping insertion in model container [2020-10-19 18:28:56,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:28:56" (1/1) ... [2020-10-19 18:28:56,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:28:56,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:28:57,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:28:57,091 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:28:57,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:28:57,254 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:28:57,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57 WrapperNode [2020-10-19 18:28:57,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:28:57,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:28:57,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:28:57,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:28:57,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57" (1/1) ... [2020-10-19 18:28:57,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57" (1/1) ... [2020-10-19 18:28:57,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:28:57,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:28:57,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:28:57,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:28:57,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57" (1/1) ... [2020-10-19 18:28:57,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57" (1/1) ... [2020-10-19 18:28:57,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57" (1/1) ... [2020-10-19 18:28:57,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57" (1/1) ... [2020-10-19 18:28:57,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57" (1/1) ... [2020-10-19 18:28:57,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57" (1/1) ... [2020-10-19 18:28:57,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57" (1/1) ... [2020-10-19 18:28:57,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:28:57,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:28:57,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:28:57,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:28:57,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57" (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 [2020-10-19 18:28:57,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:28:57,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:28:57,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:28:57,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:28:57,669 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:28:57,670 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-19 18:28:57,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:28:57 BoogieIcfgContainer [2020-10-19 18:28:57,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:28:57,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:28:57,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:28:57,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:28:57,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:28:56" (1/3) ... [2020-10-19 18:28:57,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6f6988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:28:57, skipping insertion in model container [2020-10-19 18:28:57,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:28:57" (2/3) ... [2020-10-19 18:28:57,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6f6988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:28:57, skipping insertion in model container [2020-10-19 18:28:57,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:28:57" (3/3) ... [2020-10-19 18:28:57,681 INFO L111 eAbstractionObserver]: Analyzing ICFG AdditionIntMax.i [2020-10-19 18:28:57,694 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:28:57,701 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 18:28:57,716 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 18:28:57,739 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:28:57,740 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:28:57,740 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:28:57,740 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:28:57,741 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:28:57,741 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:28:57,741 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:28:57,741 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:28:57,757 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-10-19 18:28:57,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-19 18:28:57,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:28:57,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-19 18:28:57,763 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:28:57,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:28:57,768 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2020-10-19 18:28:57,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:28:57,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226527833] [2020-10-19 18:28:57,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:28:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:28:57,879 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:28:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:28:57,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:28:57,912 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:28:57,913 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:28:57,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:28:57,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:28:57 BoogieIcfgContainer [2020-10-19 18:28:57,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:28:57,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:28:57,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:28:57,937 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:28:57,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:28:57" (3/4) ... [2020-10-19 18:28:57,941 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 18:28:57,981 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:28:57,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:28:57,985 INFO L168 Benchmark]: Toolchain (without parser) took 1249.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 958.6 MB in the beginning and 1.1 GB in the end (delta: -134.7 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:28:57,985 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:28:57,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:28:57,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.24 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. [2020-10-19 18:28:57,988 INFO L168 Benchmark]: Boogie Preprocessor took 44.11 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. [2020-10-19 18:28:57,989 INFO L168 Benchmark]: RCFGBuilder took 296.51 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:28:57,989 INFO L168 Benchmark]: TraceAbstraction took 262.56 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:28:57,990 INFO L168 Benchmark]: Witness Printer took 45.43 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. [2020-10-19 18:28:57,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 515.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.24 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. * Boogie Preprocessor took 44.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 296.51 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 262.56 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Witness Printer took 45.43 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: 332]: integer overflow possible integer overflow possible We found a FailurePath: [L332] 2147483647 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 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=7occurred 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...