/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 20:31:28,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 20:31:28,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 20:31:28,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 20:31:28,312 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.epf [2021-03-10 20:31:28,346 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 20:31:28,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 20:31:28,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 20:31:28,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 20:31:28,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 20:31:28,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 20:31:28,351 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 20:31:28,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 20:31:28,351 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 20:31:28,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 20:31:28,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 20:31:28,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 20:31:28,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 20:31:28,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 20:31:28,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 20:31:28,353 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 20:31:28,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 20:31:28,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 20:31:28,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 20:31:28,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 20:31:28,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 20:31:28,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 20:31:28,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 20:31:28,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 20:31:28,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 20:31:28,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 20:31:28,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 20:31:28,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 20:31:28,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 20:31:28,355 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 20:31:28,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 20:31:28,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 20:31:28,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 20:31:28,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 20:31:28,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 20:31:28,713 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-10 20:31:28,714 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-10 20:31:28,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe.bpl [2021-03-10 20:31:28,723 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe.bpl' [2021-03-10 20:31:28,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 20:31:28,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-10 20:31:28,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 20:31:28,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 20:31:28,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 20:31:28,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:31:28" (1/1) ... [2021-03-10 20:31:28,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:31:28" (1/1) ... [2021-03-10 20:31:28,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 20:31:28,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 20:31:28,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 20:31:28,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 20:31:28,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:31:28" (1/1) ... [2021-03-10 20:31:28,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:31:28" (1/1) ... [2021-03-10 20:31:28,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:31:28" (1/1) ... [2021-03-10 20:31:28,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:31:28" (1/1) ... [2021-03-10 20:31:28,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:31:28" (1/1) ... [2021-03-10 20:31:28,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:31:28" (1/1) ... [2021-03-10 20:31:28,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:31:28" (1/1) ... [2021-03-10 20:31:28,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 20:31:28,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 20:31:28,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 20:31:28,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 20:31:28,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:31:28" (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 [2021-03-10 20:31:28,878 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-10 20:31:28,879 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-10 20:31:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 20:31:28,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 20:31:28,880 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 20:31:29,051 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 20:31:29,052 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-10 20:31:29,053 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:31:29 BoogieIcfgContainer [2021-03-10 20:31:29,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 20:31:29,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 20:31:29,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 20:31:29,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 20:31:29,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:31:28" (1/2) ... [2021-03-10 20:31:29,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2937ea4d and model type LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:31:29, skipping insertion in model container [2021-03-10 20:31:29,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:31:29" (2/2) ... [2021-03-10 20:31:29,059 INFO L111 eAbstractionObserver]: Analyzing ICFG LBE_bigexample_safe.bpl [2021-03-10 20:31:29,063 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 20:31:29,063 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 20:31:29,066 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2021-03-10 20:31:29,067 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 20:31:29,117 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-10 20:31:29,132 INFO L253 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-03-10 20:31:29,148 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:31:29,149 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:31:29,149 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:31:29,149 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:31:29,149 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:31:29,149 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:31:29,149 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:31:29,149 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:31:29,181 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 86 transitions, 240 flow [2021-03-10 20:31:36,329 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:36,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-03-10 20:31:36,657 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:31:36,657 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-03-10 20:31:36,658 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr17ASSERT_VIOLATIONASSERT, fooErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr19ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, fooErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15ASSERT_VIOLATIONASSERT, ULTIMATE.startErr9ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr13ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr11ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr18ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr16ASSERT_VIOLATIONASSERT, fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr14ASSERT_VIOLATIONASSERT, fooErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr12ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONASSERT, fooErr1ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:31:36,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:31:36,688 INFO L82 PathProgramCache]: Analyzing trace with hash 111808, now seen corresponding path program 1 times [2021-03-10 20:31:36,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:31:36,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769341523] [2021-03-10 20:31:36,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:31:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:31:36,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:31:36,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769341523] [2021-03-10 20:31:36,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:31:36,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-10 20:31:36,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223206340] [2021-03-10 20:31:36,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 20:31:36,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:31:36,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 20:31:36,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:31:36,953 INFO L87 Difference]: Start difference. First operand has 54502 states, 52801 states have (on average 4.426772220223102) internal successors, (233738), 54501 states have internal predecessors, (233738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:31:37,208 INFO L93 Difference]: Finished difference Result 5832 states and 22738 transitions. [2021-03-10 20:31:37,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 20:31:37,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-03-10 20:31:37,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:31:37,214 INFO L225 Difference]: With dead ends: 5832 [2021-03-10 20:31:37,214 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 20:31:37,216 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:31:37,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 20:31:37,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 20:31:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:37,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 20:31:37,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2021-03-10 20:31:37,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:31:37,234 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 20:31:37,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:37,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 20:31:37,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 20:31:37,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 20:31:37,240 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 08:31:37 BasicIcfg [2021-03-10 20:31:37,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 20:31:37,243 INFO L168 Benchmark]: Toolchain (without parser) took 8489.86 ms. Allocated memory was 255.9 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 236.4 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 218.8 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:37,243 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:31:37,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.10 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:37,246 INFO L168 Benchmark]: Boogie Preprocessor took 19.04 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.5 MB in the end (delta: 881.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:37,246 INFO L168 Benchmark]: RCFGBuilder took 250.27 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 237.5 MB in the end (delta: -4.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:37,247 INFO L168 Benchmark]: TraceAbstraction took 8186.29 ms. Allocated memory was 255.9 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 236.8 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 217.1 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:37,253 INFO L339 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 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.10 ms. Allocated memory is still 255.9 MB. Free memory was 235.9 MB in the beginning and 234.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.04 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.5 MB in the end (delta: 881.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 250.27 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 237.5 MB in the end (delta: -4.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8186.29 ms. Allocated memory was 255.9 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 236.8 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 217.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 52]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 25]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 40]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 26]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 39]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 27]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 38]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 24]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 41]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 22]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 23]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 29]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 36]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 28]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 37]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 31]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 34]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 30]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 35]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 33]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 57 locations, 22 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8089.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 327.6ms, AutomataDifference: 357.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7179.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 52 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=54502occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.1ms SsaConstructionTime, 8.5ms SatisfiabilityAnalysisTime, 67.4ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 correct! Received shutdown request...