/usr/bin/java -Xmx8000000000 -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/regression/example2.bpl
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This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
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[2022-02-09 02:15:25,452 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
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[2022-02-09 02:15:25,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-09 02:15:25,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-09 02:15:25,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-09 02:15:25,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-09 02:15:25,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-09 02:15:25,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-09 02:15:25,486 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-09 02:15:25,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-09 02:15:25,486 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-09 02:15:25,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-09 02:15:25,486 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-09 02:15:25,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-09 02:15:25,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-09 02:15:25,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-09 02:15:25,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-09 02:15:25,490 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-09 02:15:25,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-09 02:15:25,490 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-09 02:15:25,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-09 02:15:25,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-09 02:15:25,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-09 02:15:25,491 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-09 02:15:25,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-09 02:15:25,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 02:15:25,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-09 02:15:25,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-09 02:15:25,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-09 02:15:25,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-09 02:15:25,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-09 02:15:25,493 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-09 02:15:25,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-09 02:15:25,494 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-09 02:15:25,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-09 02:15:25,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-09 02:15:25,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-09 02:15:25,763 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-02-09 02:15:25,766 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized
[2022-02-09 02:15:25,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example2.bpl
[2022-02-09 02:15:25,767 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example2.bpl'
[2022-02-09 02:15:25,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-09 02:15:25,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-09 02:15:25,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-09 02:15:25,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-09 02:15:25,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-09 02:15:25,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:25" (1/1) ...
[2022-02-09 02:15:25,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:25" (1/1) ...
[2022-02-09 02:15:25,814 INFO L137 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-02-09 02:15:25,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-09 02:15:25,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-09 02:15:25,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-09 02:15:25,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-09 02:15:25,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:25" (1/1) ...
[2022-02-09 02:15:25,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:25" (1/1) ...
[2022-02-09 02:15:25,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:25" (1/1) ...
[2022-02-09 02:15:25,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:25" (1/1) ...
[2022-02-09 02:15:25,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:25" (1/1) ...
[2022-02-09 02:15:25,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:25" (1/1) ...
[2022-02-09 02:15:25,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:25" (1/1) ...
[2022-02-09 02:15:25,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-09 02:15:25,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-09 02:15:25,830 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-09 02:15:25,831 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-09 02:15:25,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:25" (1/1) ...
[2022-02-09 02:15:25,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 02:15:25,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 02:15:25,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-02-09 02:15:25,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-02-09 02:15:25,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration
[2022-02-09 02:15:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure foo
[2022-02-09 02:15:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure foo
[2022-02-09 02:15:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-09 02:15:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-09 02:15:25,921 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-09 02:15:25,958 INFO L234 CfgBuilder]: Building ICFG
[2022-02-09 02:15:25,959 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-09 02:15:26,012 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-09 02:15:26,018 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-09 02:15:26,018 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-09 02:15:26,020 INFO L202 PluginConnector]: Adding new model example2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:15:26 BoogieIcfgContainer
[2022-02-09 02:15:26,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-09 02:15:26,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-09 02:15:26,022 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-09 02:15:26,026 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-09 02:15:26,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:25" (1/2) ...
[2022-02-09 02:15:26,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1803a5f7 and model type example2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 02:15:26, skipping insertion in model container
[2022-02-09 02:15:26,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:15:26" (2/2) ...
[2022-02-09 02:15:26,029 INFO L111 eAbstractionObserver]: Analyzing ICFG example2.bpl
[2022-02-09 02:15:26,033 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-09 02:15:26,034 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-09 02:15:26,034 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-09 02:15:26,034 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-09 02:15:26,055 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 02:15:26,055 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 02:15:26,055 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 02:15:26,056 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_ret not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 02:15:26,056 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 02:15:26,056 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_ret not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 02:15:26,063 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 02:15:26,064 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_ret not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 02:15:26,068 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2022-02-09 02:15:26,124 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-09 02:15:26,131 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2022-02-09 02:15:26,132 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-02-09 02:15:26,141 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 10 transitions, 28 flow
[2022-02-09 02:15:26,154 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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)
[2022-02-09 02:15:26,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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)
[2022-02-09 02:15:26,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-02-09 02:15:26,162 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:15:26,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:15:26,164 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] ===
[2022-02-09 02:15:26,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:15:26,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1620004067, now seen corresponding path program 1 times
[2022-02-09 02:15:26,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:15:26,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739904704]
[2022-02-09 02:15:26,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:15:26,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:15:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:15:26,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:15:26,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:15:26,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739904704]
[2022-02-09 02:15:26,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739904704] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:15:26,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:15:26,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-02-09 02:15:26,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154642943]
[2022-02-09 02:15:26,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:15:26,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-09 02:15:26,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:15:26,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-09 02:15:26,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-09 02:15:26,454 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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)
[2022-02-09 02:15:26,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:15:26,540 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions.
[2022-02-09 02:15:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-02-09 02:15:26,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 7
[2022-02-09 02:15:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:15:26,546 INFO L225 Difference]: With dead ends: 7
[2022-02-09 02:15:26,546 INFO L226 Difference]: Without dead ends: 0
[2022-02-09 02:15:26,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:15:26,551 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:15:26,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:15:26,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-02-09 02:15:26,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-02-09 02:15:26,571 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)
[2022-02-09 02:15:26,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-02-09 02:15:26,573 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7
[2022-02-09 02:15:26,573 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:15:26,574 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-09 02:15:26,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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)
[2022-02-09 02:15:26,574 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-02-09 02:15:26,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-02-09 02:15:26,576 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining)
[2022-02-09 02:15:26,576 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining)
[2022-02-09 02:15:26,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-09 02:15:26,582 INFO L732 BasicCegarLoop]: Path program histogram: [1]
[2022-02-09 02:15:26,584 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-09 02:15:26,584 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-09 02:15:26,588 INFO L202 PluginConnector]: Adding new model example2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 02:15:26 BasicIcfg
[2022-02-09 02:15:26,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-09 02:15:26,588 INFO L158 Benchmark]: Toolchain (without parser) took 796.69ms. Allocated memory is still 191.9MB. Free memory was 151.7MB in the beginning and 151.6MB in the end (delta: 110.4kB). Peak memory consumption was 832.4kB. Max. memory is 8.0GB.
[2022-02-09 02:15:26,589 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 191.9MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-09 02:15:26,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.26ms. Allocated memory is still 191.9MB. Free memory was 151.7MB in the beginning and 150.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-09 02:15:26,590 INFO L158 Benchmark]: Boogie Preprocessor took 11.55ms. Allocated memory is still 191.9MB. Free memory was 150.1MB in the beginning and 149.3MB in the end (delta: 767.8kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-02-09 02:15:26,594 INFO L158 Benchmark]: RCFGBuilder took 189.76ms. Allocated memory is still 191.9MB. Free memory was 149.3MB in the beginning and 141.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB.
[2022-02-09 02:15:26,596 INFO L158 Benchmark]: TraceAbstraction took 566.37ms. Allocated memory is still 191.9MB. Free memory was 140.9MB in the beginning and 151.6MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 8.0GB.
[2022-02-09 02:15:26,600 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 0.14ms. Allocated memory is still 191.9MB. Free memory is still 152.6MB. There was no memory consumed. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 23.26ms. Allocated memory is still 191.9MB. Free memory was 151.7MB in the beginning and 150.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 11.55ms. Allocated memory is still 191.9MB. Free memory was 150.1MB in the beginning and 149.3MB in the end (delta: 767.8kB). There was no memory consumed. Max. memory is 8.0GB.
* RCFGBuilder took 189.76ms. Allocated memory is still 191.9MB. Free memory was 149.3MB in the beginning and 141.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB.
* TraceAbstraction took 566.37ms. Allocated memory is still 191.9MB. Free memory was 140.9MB in the beginning and 151.6MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 22]: assertion always holds
For all program executions holds that assertion always holds at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 3 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 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
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-02-09 02:15:26,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...