/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/count_up_down-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:27:20,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:27:20,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:27:20,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:27:20,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:27:20,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:27:20,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:27:20,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:27:20,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:27:20,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:27:20,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:27:20,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:27:20,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:27:20,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:27:20,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:27:20,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:27:20,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:27:20,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:27:20,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:27:20,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:27:20,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:27:20,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:27:20,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:27:20,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:27:20,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:27:20,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 15:27:20,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 15:27:20,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 15:27:20,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 15:27:20,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 15:27:20,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 15:27:20,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 15:27:20,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 15:27:20,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:27:20,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:27:20,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:27:20,474 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-10 15:27:20,488 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:27:20,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:27:20,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:27:20,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:27:20,490 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:27:20,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:27:20,490 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:27:20,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:27:20,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:27:20,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:27:20,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:27:20,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:27:20,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:27:20,492 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:27:20,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:27:20,492 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:27:20,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:27:20,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:27:20,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:27:20,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:27:20,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:27:20,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:27:20,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:27:20,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:27:20,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:27:20,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:27:20,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:27:20,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:27:20,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:27:20,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:27:20,769 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:27:20,783 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:27:20,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:27:20,787 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:27:20,787 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:27:20,788 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/count_up_down-2.c [2020-07-10 15:27:20,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da9a766be/b2354f9a2ab4451f9855c9bc61f43509/FLAG0b0ea82a3 [2020-07-10 15:27:21,309 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:27:21,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/count_up_down-2.c [2020-07-10 15:27:21,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da9a766be/b2354f9a2ab4451f9855c9bc61f43509/FLAG0b0ea82a3 [2020-07-10 15:27:21,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da9a766be/b2354f9a2ab4451f9855c9bc61f43509 [2020-07-10 15:27:21,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:27:21,720 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:27:21,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:27:21,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:27:21,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:27:21,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:21,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f902fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21, skipping insertion in model container [2020-07-10 15:27:21,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:21,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:27:21,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:27:21,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:27:21,963 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:27:21,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:27:21,993 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:27:21,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21 WrapperNode [2020-07-10 15:27:21,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:27:21,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:27:21,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:27:21,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:27:22,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:22,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:22,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:22,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:22,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:22,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:22,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:22,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:27:22,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:27:22,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:27:22,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:27:22,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (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 [2020-07-10 15:27:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:27:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:27:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:27:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:27:22,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:27:22,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:27:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-10 15:27:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:27:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:27:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:27:22,409 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:27:22,410 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 15:27:22,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:27:22 BoogieIcfgContainer [2020-07-10 15:27:22,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:27:22,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:27:22,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:27:22,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:27:22,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:27:21" (1/3) ... [2020-07-10 15:27:22,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a352b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:27:22, skipping insertion in model container [2020-07-10 15:27:22,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (2/3) ... [2020-07-10 15:27:22,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a352b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:27:22, skipping insertion in model container [2020-07-10 15:27:22,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:27:22" (3/3) ... [2020-07-10 15:27:22,423 INFO L109 eAbstractionObserver]: Analyzing ICFG count_up_down-2.c [2020-07-10 15:27:22,441 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:27:22,450 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:27:22,479 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:27:22,509 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:27:22,509 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:27:22,509 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:27:22,510 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:27:22,510 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:27:22,510 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:27:22,510 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:27:22,510 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:27:22,533 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-07-10 15:27:22,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-10 15:27:22,539 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:27:22,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:27:22,540 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:27:22,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:27:22,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2020-07-10 15:27:22,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:27:22,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858506795] [2020-07-10 15:27:22,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:27:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:27:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:27:22,678 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:27:22,679 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:27:22,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:27:22,704 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:27:22,705 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:27:22,705 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:27:22,705 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:27:22,705 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-10 15:27:22,705 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:27:22,705 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:27:22,705 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:27:22,706 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-10 15:27:22,706 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-10 15:27:22,706 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-10 15:27:22,706 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:27:22,706 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:27:22,706 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:27:22,707 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-10 15:27:22,707 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-10 15:27:22,707 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-10 15:27:22,707 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-10 15:27:22,707 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-10 15:27:22,707 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:27:22,708 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:27:22,708 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:27:22,708 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. [2020-07-10 15:27:22,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:27:22 BoogieIcfgContainer [2020-07-10 15:27:22,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:27:22,715 INFO L168 Benchmark]: Toolchain (without parser) took 994.26 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 101.7 MB in the beginning and 149.8 MB in the end (delta: -48.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:22,716 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory is still 120.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 15:27:22,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.60 ms. Allocated memory is still 137.4 MB. Free memory was 101.3 MB in the beginning and 91.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:22,718 INFO L168 Benchmark]: Boogie Preprocessor took 104.05 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 91.9 MB in the beginning and 179.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:22,719 INFO L168 Benchmark]: RCFGBuilder took 315.03 ms. Allocated memory is still 200.8 MB. Free memory was 179.7 MB in the beginning and 164.6 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:22,720 INFO L168 Benchmark]: TraceAbstraction took 296.78 ms. Allocated memory is still 200.8 MB. Free memory was 163.7 MB in the beginning and 149.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:22,724 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 0.19 ms. Allocated memory is still 137.4 MB. Free memory is still 120.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 272.60 ms. Allocated memory is still 137.4 MB. Free memory was 101.3 MB in the beginning and 91.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.05 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 91.9 MB in the beginning and 179.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 315.03 ms. Allocated memory is still 200.8 MB. Free memory was 179.7 MB in the beginning and 164.6 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 296.78 ms. Allocated memory is still 200.8 MB. Free memory was 163.7 MB in the beginning and 149.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] unsigned int n = __VERIFIER_nondet_uint(); [L14] unsigned int x=n, y=0; VAL [n=0, x=0, y=0] [L15] COND FALSE !(x>0) VAL [n=0, x=0, y=0] [L20] CALL __VERIFIER_assert(y!=n) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 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=17occurred 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, 10 NumberOfCodeBlocks, 10 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...