./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex6.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/LeikeHeizmann-WST2014-Ex6.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 947235a588f48ba2205d0e28208675772856b98e ............................................................................................................................................................................................................................................. 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 01:23:48,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:23:48,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:23:48,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:23:48,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:23:48,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:23:48,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:23:48,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:23:48,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:23:48,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:23:48,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:23:48,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:23:48,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:23:48,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:23:48,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:23:48,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:23:48,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:23:48,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:23:48,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:23:48,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:23:48,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:23:48,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:23:48,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:23:48,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:23:48,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:23:48,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:23:48,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:23:48,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:23:48,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:23:48,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:23:48,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:23:48,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:23:48,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:23:48,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:23:48,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:23:48,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:23:48,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:23:48,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:23:48,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:23:48,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:23:48,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:23:48,464 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-07-29 01:23:48,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:23:48,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:23:48,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:23:48,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:23:48,482 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:23:48,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:23:48,482 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:23:48,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:23:48,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:23:48,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:23:48,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:23:48,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:23:48,484 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:23:48,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:23:48,485 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:23:48,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:23:48,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:23:48,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:23:48,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:23:48,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:23:48,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:23:48,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:23:48,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:23:48,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:23:48,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:23:48,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:23:48,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:23:48,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:23:48,489 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 -> 947235a588f48ba2205d0e28208675772856b98e [2020-07-29 01:23:48,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:23:48,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:23:48,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:23:48,807 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:23:48,807 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:23:48,808 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex6.c [2020-07-29 01:23:48,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e0c12f9/fe6ec258a82f42078efbcfbc7bd1e473/FLAGc7dec9935 [2020-07-29 01:23:49,335 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:23:49,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex6.c [2020-07-29 01:23:49,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e0c12f9/fe6ec258a82f42078efbcfbc7bd1e473/FLAGc7dec9935 [2020-07-29 01:23:49,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e0c12f9/fe6ec258a82f42078efbcfbc7bd1e473 [2020-07-29 01:23:49,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:23:49,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:23:49,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:49,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:23:49,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:23:49,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:49" (1/1) ... [2020-07-29 01:23:49,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82c6bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49, skipping insertion in model container [2020-07-29 01:23:49,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:49" (1/1) ... [2020-07-29 01:23:49,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:23:49,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:23:49,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:49,906 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:23:49,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:49,937 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:23:49,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49 WrapperNode [2020-07-29 01:23:49,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:49,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:49,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:23:49,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:23:49,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49" (1/1) ... [2020-07-29 01:23:49,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49" (1/1) ... [2020-07-29 01:23:49,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:49,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:23:49,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:23:49,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:23:50,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49" (1/1) ... [2020-07-29 01:23:50,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49" (1/1) ... [2020-07-29 01:23:50,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49" (1/1) ... [2020-07-29 01:23:50,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49" (1/1) ... [2020-07-29 01:23:50,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49" (1/1) ... [2020-07-29 01:23:50,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49" (1/1) ... [2020-07-29 01:23:50,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49" (1/1) ... [2020-07-29 01:23:50,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:23:50,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:23:50,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:23:50,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:23:50,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49" (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 01:23:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:23:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:23:50,342 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:23:50,342 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:23:50,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:50 BoogieIcfgContainer [2020-07-29 01:23:50,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:23:50,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:23:50,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:23:50,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:23:50,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:23:49" (1/3) ... [2020-07-29 01:23:50,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e5c5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:50, skipping insertion in model container [2020-07-29 01:23:50,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:49" (2/3) ... [2020-07-29 01:23:50,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e5c5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:50, skipping insertion in model container [2020-07-29 01:23:50,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:50" (3/3) ... [2020-07-29 01:23:50,358 INFO L109 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-WST2014-Ex6.c [2020-07-29 01:23:50,369 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:23:50,380 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-07-29 01:23:50,400 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-29 01:23:50,430 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:23:50,431 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:23:50,431 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:23:50,431 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:23:50,431 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:23:50,432 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:23:50,432 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:23:50,432 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:23:50,457 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-07-29 01:23:50,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-29 01:23:50,466 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:50,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-29 01:23:50,468 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:23:50,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:50,475 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-07-29 01:23:50,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:50,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095382855] [2020-07-29 01:23:50,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:23:50,580 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:23:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:23:50,589 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:23:50,605 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:23:50,606 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-29 01:23:50,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:23:50,627 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-29 01:23:50,627 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-29 01:23:50,627 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-29 01:23:50,627 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-29 01:23:50,628 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2020-07-29 01:23:50,628 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-29 01:23:50,628 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-29 01:23:50,628 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-29 01:23:50,629 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-29 01:23:50,629 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-29 01:23:50,629 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-29 01:23:50,629 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-29 01:23:50,629 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-29 01:23:50,630 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-29 01:23:50,630 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-29 01:23:50,630 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 01:23:50,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.07 01:23:50 BoogieIcfgContainer [2020-07-29 01:23:50,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-29 01:23:50,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:23:50,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:23:50,634 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:23:50,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:50" (3/4) ... [2020-07-29 01:23:50,638 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-29 01:23:50,682 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 01:23:50,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:23:50,685 INFO L168 Benchmark]: Toolchain (without parser) took 977.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:23:50,686 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:23:50,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.38 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:50,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.16 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:23:50,688 INFO L168 Benchmark]: Boogie Preprocessor took 74.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:50,689 INFO L168 Benchmark]: RCFGBuilder took 295.09 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:50,690 INFO L168 Benchmark]: TraceAbstraction took 285.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:50,690 INFO L168 Benchmark]: Witness Printer took 48.16 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 01:23:50,694 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 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 229.38 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 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 37.16 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 295.09 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 285.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 48.16 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: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int a, b; [L15] a = __VERIFIER_nondet_int() [L16] b = __VERIFIER_nondet_int() [L17] COND TRUE a >= 1 && b >= 1 [L18] 2*a - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...