java -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/loop-acceleration/phases_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 11:13:30,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 11:13:30,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 11:13:30,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 11:13:30,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 11:13:30,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 11:13:30,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 11:13:30,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 11:13:30,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 11:13:30,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 11:13:30,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 11:13:30,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 11:13:30,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 11:13:30,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 11:13:30,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 11:13:30,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 11:13:30,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 11:13:30,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 11:13:30,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 11:13:30,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 11:13:30,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 11:13:30,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 11:13:30,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 11:13:30,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 11:13:30,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 11:13:30,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 11:13:30,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 11:13:30,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 11:13:30,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 11:13:30,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 11:13:30,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 11:13:30,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 11:13:30,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 11:13:30,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 11:13:30,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 11:13:30,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 11:13:30,636 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 [2019-10-02 11:13:30,654 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 11:13:30,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 11:13:30,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 11:13:30,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 11:13:30,659 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 11:13:30,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 11:13:30,659 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 11:13:30,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 11:13:30,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 11:13:30,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 11:13:30,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 11:13:30,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 11:13:30,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 11:13:30,662 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 11:13:30,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 11:13:30,663 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 11:13:30,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 11:13:30,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 11:13:30,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 11:13:30,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 11:13:30,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 11:13:30,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 11:13:30,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 11:13:30,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 11:13:30,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 11:13:30,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 11:13:30,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 11:13:30,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 11:13:30,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 11:13:30,721 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 11:13:30,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 11:13:30,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 11:13:30,743 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 11:13:30,743 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 11:13:30,744 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-10-02 11:13:30,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c25488af7/6d060dc41bcb4c7697b4e0241dab978b/FLAGc1e33c6ac [2019-10-02 11:13:31,300 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 11:13:31,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-10-02 11:13:31,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c25488af7/6d060dc41bcb4c7697b4e0241dab978b/FLAGc1e33c6ac [2019-10-02 11:13:31,719 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c25488af7/6d060dc41bcb4c7697b4e0241dab978b [2019-10-02 11:13:31,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 11:13:31,731 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 11:13:31,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 11:13:31,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 11:13:31,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 11:13:31,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:13:31" (1/1) ... [2019-10-02 11:13:31,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb0bc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:31, skipping insertion in model container [2019-10-02 11:13:31,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:13:31" (1/1) ... [2019-10-02 11:13:31,748 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 11:13:31,763 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 11:13:32,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:13:32,030 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 11:13:32,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:13:32,071 INFO L192 MainTranslator]: Completed translation [2019-10-02 11:13:32,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:32 WrapperNode [2019-10-02 11:13:32,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 11:13:32,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 11:13:32,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 11:13:32,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 11:13:32,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:32" (1/1) ... [2019-10-02 11:13:32,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:32" (1/1) ... [2019-10-02 11:13:32,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:32" (1/1) ... [2019-10-02 11:13:32,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:32" (1/1) ... [2019-10-02 11:13:32,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:32" (1/1) ... [2019-10-02 11:13:32,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:32" (1/1) ... [2019-10-02 11:13:32,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:32" (1/1) ... [2019-10-02 11:13:32,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 11:13:32,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 11:13:32,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 11:13:32,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 11:13:32,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:32" (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 [2019-10-02 11:13:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 11:13:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 11:13:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 11:13:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 11:13:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 11:13:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 11:13:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-02 11:13:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 11:13:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 11:13:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 11:13:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 11:13:32,498 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 11:13:32,498 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 11:13:32,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:13:32 BoogieIcfgContainer [2019-10-02 11:13:32,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 11:13:32,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 11:13:32,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 11:13:32,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 11:13:32,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:13:31" (1/3) ... [2019-10-02 11:13:32,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16bc2777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:13:32, skipping insertion in model container [2019-10-02 11:13:32,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:32" (2/3) ... [2019-10-02 11:13:32,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16bc2777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:13:32, skipping insertion in model container [2019-10-02 11:13:32,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:13:32" (3/3) ... [2019-10-02 11:13:32,509 INFO L109 eAbstractionObserver]: Analyzing ICFG phases_2-1.c [2019-10-02 11:13:32,519 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 11:13:32,528 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 11:13:32,553 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 11:13:32,619 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 11:13:32,620 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 11:13:32,621 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 11:13:32,621 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 11:13:32,621 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 11:13:32,621 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 11:13:32,622 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 11:13:32,622 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 11:13:32,622 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 11:13:32,646 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-02 11:13:32,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-02 11:13:32,654 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:13:32,656 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:13:32,659 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:13:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:13:32,667 INFO L82 PathProgramCache]: Analyzing trace with hash -133618162, now seen corresponding path program 1 times [2019-10-02 11:13:32,669 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:13:32,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:13:32,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:13:32,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:13:32,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:13:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:13:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:13:32,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:13:32,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 11:13:32,836 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 11:13:32,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 11:13:32,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 11:13:32,854 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-10-02 11:13:32,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:13:32,873 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2019-10-02 11:13:32,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 11:13:32,875 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-10-02 11:13:32,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:13:32,881 INFO L225 Difference]: With dead ends: 30 [2019-10-02 11:13:32,882 INFO L226 Difference]: Without dead ends: 13 [2019-10-02 11:13:32,885 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 11:13:32,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-02 11:13:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-02 11:13:32,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-02 11:13:32,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-10-02 11:13:32,922 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2019-10-02 11:13:32,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:13:32,923 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-10-02 11:13:32,923 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 11:13:32,923 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-10-02 11:13:32,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-02 11:13:32,924 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:13:32,924 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:13:32,924 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:13:32,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:13:32,925 INFO L82 PathProgramCache]: Analyzing trace with hash -142853372, now seen corresponding path program 1 times [2019-10-02 11:13:32,925 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:13:32,925 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:13:32,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:13:32,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:13:32,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:13:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-02 11:13:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-02 11:13:32,980 INFO L478 BasicCegarLoop]: Counterexample might be feasible [2019-10-02 11:13:33,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:13:33 BoogieIcfgContainer [2019-10-02 11:13:33,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 11:13:33,008 INFO L168 Benchmark]: Toolchain (without parser) took 1275.08 ms. Allocated memory was 143.1 MB in the beginning and 203.4 MB in the end (delta: 60.3 MB). Free memory was 90.5 MB in the beginning and 147.2 MB in the end (delta: -56.7 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-10-02 11:13:33,009 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 143.1 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 11:13:33,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.33 ms. Allocated memory is still 143.1 MB. Free memory was 90.2 MB in the beginning and 80.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-02 11:13:33,011 INFO L168 Benchmark]: Boogie Preprocessor took 174.05 ms. Allocated memory was 143.1 MB in the beginning and 203.4 MB in the end (delta: 60.3 MB). Free memory was 80.5 MB in the beginning and 180.7 MB in the end (delta: -100.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-10-02 11:13:33,012 INFO L168 Benchmark]: RCFGBuilder took 252.32 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 169.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-10-02 11:13:33,013 INFO L168 Benchmark]: TraceAbstraction took 503.34 ms. Allocated memory is still 203.4 MB. Free memory was 169.1 MB in the beginning and 147.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-10-02 11:13:33,017 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 143.1 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 340.33 ms. Allocated memory is still 143.1 MB. Free memory was 90.2 MB in the beginning and 80.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 174.05 ms. Allocated memory was 143.1 MB in the beginning and 203.4 MB in the end (delta: 60.3 MB). Free memory was 80.5 MB in the beginning and 180.7 MB in the end (delta: -100.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 252.32 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 169.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 503.34 ms. Allocated memory is still 203.4 MB. Free memory was 169.1 MB in the beginning and 147.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] unsigned int x = 1; [L14] unsigned int y = __VERIFIER_nondet_uint(); [L16] COND FALSE !(!(y > 0)) VAL [x=1, y=1] [L18] COND FALSE !(x < y) VAL [x=1, y=1] [L26] CALL __VERIFIER_assert(x != y) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...