/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/concurrent/bpl/mcr/example_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d9e330d [2020-02-10 22:32:09,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-02-10 22:32:09,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-02-10 22:32:09,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-02-10 22:32:09,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-02-10 22:32:09,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-02-10 22:32:09,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-02-10 22:32:09,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-02-10 22:32:09,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-02-10 22:32:09,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-02-10 22:32:09,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-02-10 22:32:09,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-02-10 22:32:09,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-02-10 22:32:09,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-02-10 22:32:09,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-02-10 22:32:09,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-02-10 22:32:09,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-02-10 22:32:09,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-02-10 22:32:09,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-02-10 22:32:09,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-02-10 22:32:09,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-02-10 22:32:09,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-02-10 22:32:09,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-02-10 22:32:09,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-02-10 22:32:09,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-02-10 22:32:09,626 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2020-02-10 22:32:09,653 INFO L113 SettingsManager]: Loading preferences was successful [2020-02-10 22:32:09,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-02-10 22:32:09,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-02-10 22:32:09,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-02-10 22:32:09,658 INFO L138 SettingsManager]: * Use SBE=true [2020-02-10 22:32:09,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-02-10 22:32:09,658 INFO L138 SettingsManager]: * sizeof long=4 [2020-02-10 22:32:09,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-02-10 22:32:09,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-02-10 22:32:09,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-02-10 22:32:09,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-02-10 22:32:09,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-02-10 22:32:09,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-02-10 22:32:09,661 INFO L138 SettingsManager]: * sizeof long double=12 [2020-02-10 22:32:09,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-02-10 22:32:09,661 INFO L138 SettingsManager]: * Use constant arrays=true [2020-02-10 22:32:09,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-02-10 22:32:09,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-02-10 22:32:09,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-02-10 22:32:09,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-02-10 22:32:09,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-02-10 22:32:09,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-02-10 22:32:09,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-02-10 22:32:09,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-02-10 22:32:09,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-02-10 22:32:09,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-02-10 22:32:09,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-02-10 22:32:09,668 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-02-10 22:32:09,669 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-02-10 22:32:09,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-02-10 22:32:09,670 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-02-10 22:32:09,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-02-10 22:32:09,977 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-02-10 22:32:09,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-02-10 22:32:10,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-02-10 22:32:10,003 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-02-10 22:32:10,004 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-02-10 22:32:10,005 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_4.bpl [2020-02-10 22:32:10,005 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_4.bpl' [2020-02-10 22:32:10,035 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-02-10 22:32:10,038 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-02-10 22:32:10,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-02-10 22:32:10,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-02-10 22:32:10,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-02-10 22:32:10,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:10" (1/1) ... [2020-02-10 22:32:10,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:10" (1/1) ... [2020-02-10 22:32:10,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-02-10 22:32:10,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-02-10 22:32:10,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-02-10 22:32:10,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-02-10 22:32:10,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:10" (1/1) ... [2020-02-10 22:32:10,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:10" (1/1) ... [2020-02-10 22:32:10,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:10" (1/1) ... [2020-02-10 22:32:10,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:10" (1/1) ... [2020-02-10 22:32:10,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:10" (1/1) ... [2020-02-10 22:32:10,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:10" (1/1) ... [2020-02-10 22:32:10,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:10" (1/1) ... [2020-02-10 22:32:10,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-02-10 22:32:10,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-02-10 22:32:10,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-02-10 22:32:10,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-02-10 22:32:10,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:10" (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 [2020-02-10 22:32:10,167 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2020-02-10 22:32:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2020-02-10 22:32:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2020-02-10 22:32:10,168 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2020-02-10 22:32:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2020-02-10 22:32:10,168 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2020-02-10 22:32:10,168 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2020-02-10 22:32:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2020-02-10 22:32:10,168 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2020-02-10 22:32:10,169 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2020-02-10 22:32:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2020-02-10 22:32:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2020-02-10 22:32:10,169 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-02-10 22:32:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-02-10 22:32:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-02-10 22:32:10,171 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-02-10 22:32:10,366 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-02-10 22:32:10,366 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-02-10 22:32:10,370 INFO L202 PluginConnector]: Adding new model example_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:32:10 BoogieIcfgContainer [2020-02-10 22:32:10,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-02-10 22:32:10,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-02-10 22:32:10,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-02-10 22:32:10,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-02-10 22:32:10,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:10" (1/2) ... [2020-02-10 22:32:10,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65afa552 and model type example_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:32:10, skipping insertion in model container [2020-02-10 22:32:10,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:32:10" (2/2) ... [2020-02-10 22:32:10,383 INFO L109 eAbstractionObserver]: Analyzing ICFG example_4.bpl [2020-02-10 22:32:10,394 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-02-10 22:32:10,394 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-02-10 22:32:10,402 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-02-10 22:32:10,403 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-02-10 22:32:10,544 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-02-10 22:32:10,581 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-02-10 22:32:10,581 INFO L376 AbstractCegarLoop]: Hoare is true [2020-02-10 22:32:10,581 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-02-10 22:32:10,581 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-02-10 22:32:10,582 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-02-10 22:32:10,582 INFO L380 AbstractCegarLoop]: Difference is false [2020-02-10 22:32:10,583 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-02-10 22:32:10,583 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-02-10 22:32:10,619 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 35 transitions [2020-02-10 22:32:10,667 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 299 states. [2020-02-10 22:32:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states. [2020-02-10 22:32:10,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-02-10 22:32:10,688 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:10,689 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 22:32:10,689 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-02-10 22:32:10,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:10,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1503386291, now seen corresponding path program 1 times [2020-02-10 22:32:10,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:10,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936290165] [2020-02-10 22:32:10,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:32:10,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936290165] [2020-02-10 22:32:10,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:10,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:32:10,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1257410310] [2020-02-10 22:32:10,872 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:10,879 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:10,929 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 162 states and 433 transitions. [2020-02-10 22:32:10,930 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:10,939 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2020-02-10 22:32:10,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:32:10,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:10,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:32:10,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:10,959 INFO L87 Difference]: Start difference. First operand 299 states. Second operand 3 states. [2020-02-10 22:32:11,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:11,006 INFO L93 Difference]: Finished difference Result 272 states and 771 transitions. [2020-02-10 22:32:11,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:32:11,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-02-10 22:32:11,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:11,044 INFO L225 Difference]: With dead ends: 272 [2020-02-10 22:32:11,045 INFO L226 Difference]: Without dead ends: 270 [2020-02-10 22:32:11,053 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:11,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-02-10 22:32:11,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2020-02-10 22:32:11,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-02-10 22:32:11,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 769 transitions. [2020-02-10 22:32:11,181 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 769 transitions. Word has length 17 [2020-02-10 22:32:11,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:32:11,181 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 769 transitions. [2020-02-10 22:32:11,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:32:11,183 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 769 transitions. [2020-02-10 22:32:11,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-02-10 22:32:11,191 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:11,191 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 22:32:11,191 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-02-10 22:32:11,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:11,195 INFO L82 PathProgramCache]: Analyzing trace with hash 591735021, now seen corresponding path program 1 times [2020-02-10 22:32:11,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:11,196 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511967088] [2020-02-10 22:32:11,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:32:11,226 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511967088] [2020-02-10 22:32:11,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:11,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:32:11,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2082159804] [2020-02-10 22:32:11,228 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:11,229 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:11,237 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 162 states and 433 transitions. [2020-02-10 22:32:11,237 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:11,244 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2020-02-10 22:32:11,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:32:11,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:11,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:32:11,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:11,261 INFO L87 Difference]: Start difference. First operand 270 states and 769 transitions. Second operand 3 states. [2020-02-10 22:32:11,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:11,280 INFO L93 Difference]: Finished difference Result 216 states and 589 transitions. [2020-02-10 22:32:11,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:32:11,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-02-10 22:32:11,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:11,283 INFO L225 Difference]: With dead ends: 216 [2020-02-10 22:32:11,284 INFO L226 Difference]: Without dead ends: 216 [2020-02-10 22:32:11,287 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:11,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-02-10 22:32:11,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2020-02-10 22:32:11,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-02-10 22:32:11,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 589 transitions. [2020-02-10 22:32:11,315 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 589 transitions. Word has length 17 [2020-02-10 22:32:11,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:32:11,315 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 589 transitions. [2020-02-10 22:32:11,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:32:11,316 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 589 transitions. [2020-02-10 22:32:11,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-02-10 22:32:11,319 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:11,320 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 22:32:11,320 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-02-10 22:32:11,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:11,321 INFO L82 PathProgramCache]: Analyzing trace with hash -345548245, now seen corresponding path program 1 times [2020-02-10 22:32:11,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:11,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554107525] [2020-02-10 22:32:11,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:32:11,380 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554107525] [2020-02-10 22:32:11,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:11,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:32:11,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [215523009] [2020-02-10 22:32:11,381 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:11,383 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:11,400 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 162 states and 433 transitions. [2020-02-10 22:32:11,400 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:11,406 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2020-02-10 22:32:11,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:32:11,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:11,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:32:11,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:11,413 INFO L87 Difference]: Start difference. First operand 216 states and 589 transitions. Second operand 3 states. [2020-02-10 22:32:11,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:11,428 INFO L93 Difference]: Finished difference Result 162 states and 433 transitions. [2020-02-10 22:32:11,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:32:11,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-02-10 22:32:11,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:11,431 INFO L225 Difference]: With dead ends: 162 [2020-02-10 22:32:11,432 INFO L226 Difference]: Without dead ends: 162 [2020-02-10 22:32:11,432 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:11,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-02-10 22:32:11,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-02-10 22:32:11,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-02-10 22:32:11,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 433 transitions. [2020-02-10 22:32:11,443 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 433 transitions. Word has length 17 [2020-02-10 22:32:11,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:32:11,443 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 433 transitions. [2020-02-10 22:32:11,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:32:11,443 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 433 transitions. [2020-02-10 22:32:11,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-02-10 22:32:11,444 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:11,445 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 22:32:11,445 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-02-10 22:32:11,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:11,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1896362483, now seen corresponding path program 1 times [2020-02-10 22:32:11,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:11,446 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218668955] [2020-02-10 22:32:11,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:11,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:32:11,761 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218668955] [2020-02-10 22:32:11,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:11,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-02-10 22:32:11,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [629689903] [2020-02-10 22:32:11,762 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:11,763 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:11,769 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 162 states and 433 transitions. [2020-02-10 22:32:11,769 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:12,068 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 33 times. [2020-02-10 22:32:12,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-02-10 22:32:12,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:12,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-02-10 22:32:12,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2020-02-10 22:32:12,070 INFO L87 Difference]: Start difference. First operand 162 states and 433 transitions. Second operand 17 states. [2020-02-10 22:32:12,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:12,224 INFO L93 Difference]: Finished difference Result 161 states and 432 transitions. [2020-02-10 22:32:12,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-02-10 22:32:12,224 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2020-02-10 22:32:12,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:12,225 INFO L225 Difference]: With dead ends: 161 [2020-02-10 22:32:12,225 INFO L226 Difference]: Without dead ends: 0 [2020-02-10 22:32:12,225 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2020-02-10 22:32:12,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-02-10 22:32:12,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-02-10 22:32:12,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-02-10 22:32:12,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-02-10 22:32:12,227 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-02-10 22:32:12,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:32:12,228 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-02-10 22:32:12,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-02-10 22:32:12,228 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-02-10 22:32:12,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-02-10 22:32:12,234 INFO L202 PluginConnector]: Adding new model example_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:32:12 BasicIcfg [2020-02-10 22:32:12,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-02-10 22:32:12,237 INFO L168 Benchmark]: Toolchain (without parser) took 2199.54 ms. Allocated memory was 137.9 MB in the beginning and 168.8 MB in the end (delta: 30.9 MB). Free memory was 119.8 MB in the beginning and 56.4 MB in the end (delta: 63.5 MB). Peak memory consumption was 94.4 MB. Max. memory is 7.1 GB. [2020-02-10 22:32:12,238 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-02-10 22:32:12,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.79 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 117.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-02-10 22:32:12,239 INFO L168 Benchmark]: Boogie Preprocessor took 19.04 ms. Allocated memory is still 137.9 MB. Free memory was 117.7 MB in the beginning and 116.9 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 7.1 GB. [2020-02-10 22:32:12,240 INFO L168 Benchmark]: RCFGBuilder took 276.35 ms. Allocated memory is still 137.9 MB. Free memory was 116.5 MB in the beginning and 105.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-02-10 22:32:12,243 INFO L168 Benchmark]: TraceAbstraction took 1862.80 ms. Allocated memory was 137.9 MB in the beginning and 168.8 MB in the end (delta: 30.9 MB). Free memory was 105.1 MB in the beginning and 56.4 MB in the end (delta: 48.7 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-02-10 22:32:12,247 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.79 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 117.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 19.04 ms. Allocated memory is still 137.9 MB. Free memory was 117.7 MB in the beginning and 116.9 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 7.1 GB. * RCFGBuilder took 276.35 ms. Allocated memory is still 137.9 MB. Free memory was 116.5 MB in the beginning and 105.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1862.80 ms. Allocated memory was 137.9 MB in the beginning and 168.8 MB in the end (delta: 30.9 MB). Free memory was 105.1 MB in the beginning and 56.4 MB in the end (delta: 48.7 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. Result: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 173 SDtfs, 121 SDslu, 362 SDs, 0 SdLazy, 74 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 4640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...