/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/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
[2022-02-09 03:46:37,458 INFO L177 SettingsManager]: Resetting all preferences to default values...
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[2022-02-09 03:46:37,561 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
[2022-02-09 03:46:37,587 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-09 03:46:37,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-09 03:46:37,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-09 03:46:37,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-09 03:46:37,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-09 03:46:37,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-09 03:46:37,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-09 03:46:37,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-09 03:46:37,589 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-09 03:46:37,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-09 03:46:37,590 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-09 03:46:37,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-09 03:46:37,590 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-09 03:46:37,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-09 03:46:37,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-09 03:46:37,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-09 03:46:37,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-09 03:46:37,591 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-09 03:46:37,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-09 03:46:37,591 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-09 03:46:37,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-09 03:46:37,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-09 03:46:37,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-09 03:46:37,591 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-09 03:46:37,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-09 03:46:37,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 03:46:37,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-09 03:46:37,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-09 03:46:37,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-09 03:46:37,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-09 03:46:37,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-09 03:46:37,593 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-09 03:46:37,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-09 03:46:37,593 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-09 03:46:37,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-09 03:46:37,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-09 03:46:37,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-09 03:46:37,793 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-02-09 03:46:37,794 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized
[2022-02-09 03:46:37,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl
[2022-02-09 03:46:37,795 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl'
[2022-02-09 03:46:37,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-09 03:46:37,812 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-09 03:46:37,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-09 03:46:37,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-09 03:46:37,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-09 03:46:37,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:46:37" (1/1) ...
[2022-02-09 03:46:37,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:46:37" (1/1) ...
[2022-02-09 03:46:37,838 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-02-09 03:46:37,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-09 03:46:37,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-09 03:46:37,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-09 03:46:37,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-09 03:46:37,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:46:37" (1/1) ...
[2022-02-09 03:46:37,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:46:37" (1/1) ...
[2022-02-09 03:46:37,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:46:37" (1/1) ...
[2022-02-09 03:46:37,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:46:37" (1/1) ...
[2022-02-09 03:46:37,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:46:37" (1/1) ...
[2022-02-09 03:46:37,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:46:37" (1/1) ...
[2022-02-09 03:46:37,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:46:37" (1/1) ...
[2022-02-09 03:46:37,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-09 03:46:37,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-09 03:46:37,851 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-09 03:46:37,851 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-09 03:46:37,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:46:37" (1/1) ...
[2022-02-09 03:46:37,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 03:46:37,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 03:46:37,873 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 03:46:37,883 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 03:46:37,906 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2022-02-09 03:46:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2022-02-09 03:46:37,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2022-02-09 03:46:37,906 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2022-02-09 03:46:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2022-02-09 03:46:37,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2022-02-09 03:46:37,907 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-02-09 03:46:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-09 03:46:37,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-09 03:46:37,907 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration
[2022-02-09 03:46:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2022-02-09 03:46:37,907 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2022-02-09 03:46:37,908 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 03:46:37,946 INFO L234 CfgBuilder]: Building ICFG
[2022-02-09 03:46:37,947 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-09 03:46:38,022 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-09 03:46:38,026 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-09 03:46:38,027 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-09 03:46:38,028 INFO L202 PluginConnector]: Adding new model min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 03:46:38 BoogieIcfgContainer
[2022-02-09 03:46:38,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-09 03:46:38,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-09 03:46:38,029 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-09 03:46:38,045 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-09 03:46:38,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:46:37" (1/2) ...
[2022-02-09 03:46:38,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e1882e and model type min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 03:46:38, skipping insertion in model container
[2022-02-09 03:46:38,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 03:46:38" (2/2) ...
[2022-02-09 03:46:38,047 INFO L111 eAbstractionObserver]: Analyzing ICFG min-le-max.wvr.bpl
[2022-02-09 03:46:38,051 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-09 03:46:38,051 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-09 03:46:38,051 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-09 03:46:38,051 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-09 03:46:38,100 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-02-09 03:46:38,165 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-09 03:46:38,171 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 03:46:38,172 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-02-09 03:46:38,183 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 26 transitions, 76 flow
[2022-02-09 03:46:38,230 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 128 states, 127 states have (on average 2.6377952755905514) internal successors, (335), 127 states have internal predecessors, (335), 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 03:46:38,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 127 states have (on average 2.6377952755905514) internal successors, (335), 127 states have internal predecessors, (335), 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 03:46:38,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2022-02-09 03:46:38,242 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 03:46:38,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 03:46:38,243 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 03:46:38,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 03:46:38,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1866543843, now seen corresponding path program 1 times
[2022-02-09 03:46:38,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 03:46:38,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846214512]
[2022-02-09 03:46:38,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 03:46:38,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 03:46:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 03:46:38,417 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 03:46:38,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 03:46:38,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846214512]
[2022-02-09 03:46:38,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846214512] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 03:46:38,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 03:46:38,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-09 03:46:38,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096852933]
[2022-02-09 03:46:38,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 03:46:38,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-02-09 03:46:38,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 03:46:38,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-02-09 03:46:38,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-02-09 03:46:38,444 INFO L87 Difference]: Start difference. First operand has 128 states, 127 states have (on average 2.6377952755905514) internal successors, (335), 127 states have internal predecessors, (335), 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 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 03:46:38,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 03:46:38,518 INFO L93 Difference]: Finished difference Result 275 states and 711 transitions.
[2022-02-09 03:46:38,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-02-09 03:46:38,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 15
[2022-02-09 03:46:38,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 03:46:38,533 INFO L225 Difference]: With dead ends: 275
[2022-02-09 03:46:38,533 INFO L226 Difference]: Without dead ends: 158
[2022-02-09 03:46:38,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-02-09 03:46:38,538 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 25 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 03:46:38,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 50 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 03:46:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states.
[2022-02-09 03:46:38,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158.
[2022-02-09 03:46:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 2.5923566878980893) internal successors, (407), 157 states have internal predecessors, (407), 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 03:46:38,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 407 transitions.
[2022-02-09 03:46:38,597 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 407 transitions. Word has length 15
[2022-02-09 03:46:38,598 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 03:46:38,598 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 407 transitions.
[2022-02-09 03:46:38,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 03:46:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 407 transitions.
[2022-02-09 03:46:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-02-09 03:46:38,600 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 03:46:38,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 03:46:38,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-09 03:46:38,600 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 03:46:38,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 03:46:38,601 INFO L85 PathProgramCache]: Analyzing trace with hash -146762183, now seen corresponding path program 1 times
[2022-02-09 03:46:38,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 03:46:38,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604673555]
[2022-02-09 03:46:38,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 03:46:38,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 03:46:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 03:46:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 03:46:38,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 03:46:38,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604673555]
[2022-02-09 03:46:38,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604673555] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 03:46:38,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115285443]
[2022-02-09 03:46:38,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 03:46:38,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 03:46:38,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 03:46:38,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 03:46:38,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-02-09 03:46:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 03:46:38,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-02-09 03:46:38,707 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 03:46:38,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 03:46:38,781 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 03:46:38,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 03:46:38,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115285443] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 03:46:38,850 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 03:46:38,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 5
[2022-02-09 03:46:38,851 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286687774]
[2022-02-09 03:46:38,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 03:46:38,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-09 03:46:38,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 03:46:38,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-09 03:46:38,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2022-02-09 03:46:38,853 INFO L87 Difference]: Start difference. First operand 158 states and 407 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 03:46:38,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 03:46:38,953 INFO L93 Difference]: Finished difference Result 319 states and 804 transitions.
[2022-02-09 03:46:38,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-02-09 03:46:38,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 18
[2022-02-09 03:46:38,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 03:46:38,958 INFO L225 Difference]: With dead ends: 319
[2022-02-09 03:46:38,958 INFO L226 Difference]: Without dead ends: 319
[2022-02-09 03:46:38,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2022-02-09 03:46:38,960 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 53 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 03:46:38,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 37 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 03:46:38,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states.
[2022-02-09 03:46:38,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 185.
[2022-02-09 03:46:38,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 2.592391304347826) internal successors, (477), 184 states have internal predecessors, (477), 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 03:46:38,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 477 transitions.
[2022-02-09 03:46:38,993 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 477 transitions. Word has length 18
[2022-02-09 03:46:38,994 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 03:46:38,994 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 477 transitions.
[2022-02-09 03:46:38,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 03:46:38,994 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 477 transitions.
[2022-02-09 03:46:38,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-02-09 03:46:39,000 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 03:46:39,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 03:46:39,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-02-09 03:46:39,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 03:46:39,202 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 03:46:39,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 03:46:39,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1717126492, now seen corresponding path program 1 times
[2022-02-09 03:46:39,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 03:46:39,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991089230]
[2022-02-09 03:46:39,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 03:46:39,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 03:46:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 03:46:39,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 03:46:39,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 03:46:39,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991089230]
[2022-02-09 03:46:39,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991089230] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 03:46:39,257 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 03:46:39,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-09 03:46:39,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486927786]
[2022-02-09 03:46:39,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 03:46:39,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-02-09 03:46:39,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 03:46:39,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-02-09 03:46:39,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-02-09 03:46:39,259 INFO L87 Difference]: Start difference. First operand 185 states and 477 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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 03:46:39,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 03:46:39,306 INFO L93 Difference]: Finished difference Result 193 states and 496 transitions.
[2022-02-09 03:46:39,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-02-09 03:46:39,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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 18
[2022-02-09 03:46:39,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 03:46:39,307 INFO L225 Difference]: With dead ends: 193
[2022-02-09 03:46:39,307 INFO L226 Difference]: Without dead ends: 182
[2022-02-09 03:46:39,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-02-09 03:46:39,310 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 25 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 03:46:39,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 23 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 03:46:39,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states.
[2022-02-09 03:46:39,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 165.
[2022-02-09 03:46:39,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 2.6402439024390243) internal successors, (433), 164 states have internal predecessors, (433), 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 03:46:39,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 433 transitions.
[2022-02-09 03:46:39,327 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 433 transitions. Word has length 18
[2022-02-09 03:46:39,327 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 03:46:39,328 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 433 transitions.
[2022-02-09 03:46:39,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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 03:46:39,328 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 433 transitions.
[2022-02-09 03:46:39,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-02-09 03:46:39,329 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 03:46:39,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 03:46:39,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-09 03:46:39,329 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 03:46:39,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 03:46:39,330 INFO L85 PathProgramCache]: Analyzing trace with hash 661949558, now seen corresponding path program 2 times
[2022-02-09 03:46:39,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 03:46:39,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537491085]
[2022-02-09 03:46:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 03:46:39,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 03:46:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 03:46:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 03:46:39,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 03:46:39,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537491085]
[2022-02-09 03:46:39,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537491085] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 03:46:39,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 03:46:39,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-02-09 03:46:39,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382454179]
[2022-02-09 03:46:39,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 03:46:39,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-09 03:46:39,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 03:46:39,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-09 03:46:39,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-02-09 03:46:39,365 INFO L87 Difference]: Start difference. First operand 165 states and 433 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 03:46:39,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 03:46:39,408 INFO L93 Difference]: Finished difference Result 202 states and 534 transitions.
[2022-02-09 03:46:39,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-02-09 03:46:39,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 18
[2022-02-09 03:46:39,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 03:46:39,410 INFO L225 Difference]: With dead ends: 202
[2022-02-09 03:46:39,410 INFO L226 Difference]: Without dead ends: 202
[2022-02-09 03:46:39,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-02-09 03:46:39,411 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 23 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 03:46:39,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 27 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 03:46:39,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2022-02-09 03:46:39,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 181.
[2022-02-09 03:46:39,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 2.65) internal successors, (477), 180 states have internal predecessors, (477), 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 03:46:39,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 477 transitions.
[2022-02-09 03:46:39,418 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 477 transitions. Word has length 18
[2022-02-09 03:46:39,418 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 03:46:39,418 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 477 transitions.
[2022-02-09 03:46:39,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 03:46:39,419 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 477 transitions.
[2022-02-09 03:46:39,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 03:46:39,419 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 03:46:39,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 03:46:39,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-09 03:46:39,420 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 03:46:39,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 03:46:39,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1928399880, now seen corresponding path program 1 times
[2022-02-09 03:46:39,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 03:46:39,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323022171]
[2022-02-09 03:46:39,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 03:46:39,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 03:46:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 03:46:39,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 03:46:39,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 03:46:39,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323022171]
[2022-02-09 03:46:39,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323022171] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 03:46:39,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788058553]
[2022-02-09 03:46:39,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 03:46:39,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 03:46:39,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 03:46:39,550 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 03:46:39,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-02-09 03:46:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 03:46:39,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 12 conjunts are in the unsatisfiable core
[2022-02-09 03:46:39,577 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 03:46:39,735 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-02-09 03:46:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 03:46:39,756 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 03:46:40,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 03:46:40,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788058553] provided 1 perfect and 1 imperfect interpolant sequences
[2022-02-09 03:46:40,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2022-02-09 03:46:40,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9
[2022-02-09 03:46:40,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513270925]
[2022-02-09 03:46:40,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 03:46:40,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-09 03:46:40,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 03:46:40,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-09 03:46:40,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2022-02-09 03:46:40,087 INFO L87 Difference]: Start difference. First operand 181 states and 477 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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 03:46:40,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 03:46:40,111 INFO L93 Difference]: Finished difference Result 179 states and 475 transitions.
[2022-02-09 03:46:40,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-02-09 03:46:40,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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 21
[2022-02-09 03:46:40,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 03:46:40,112 INFO L225 Difference]: With dead ends: 179
[2022-02-09 03:46:40,113 INFO L226 Difference]: Without dead ends: 0
[2022-02-09 03:46:40,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110
[2022-02-09 03:46:40,119 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 30 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 03:46:40,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 26 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 03:46:40,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-02-09 03:46:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-02-09 03:46:40,123 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 03:46:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-02-09 03:46:40,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21
[2022-02-09 03:46:40,123 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 03:46:40,123 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-09 03:46:40,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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 03:46:40,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-02-09 03:46:40,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-02-09 03:46:40,125 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining)
[2022-02-09 03:46:40,126 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining)
[2022-02-09 03:46:40,126 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining)
[2022-02-09 03:46:40,126 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining)
[2022-02-09 03:46:40,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-02-09 03:46:40,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 03:46:40,346 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1]
[2022-02-09 03:46:40,347 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-09 03:46:40,347 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-09 03:46:40,349 INFO L202 PluginConnector]: Adding new model min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 03:46:40 BasicIcfg
[2022-02-09 03:46:40,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-09 03:46:40,350 INFO L158 Benchmark]: Toolchain (without parser) took 2537.53ms. Allocated memory was 189.8MB in the beginning and 228.6MB in the end (delta: 38.8MB). Free memory was 154.3MB in the beginning and 78.7MB in the end (delta: 75.7MB). Peak memory consumption was 114.4MB. Max. memory is 8.0GB.
[2022-02-09 03:46:40,350 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 189.8MB. Free memory is still 155.4MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-09 03:46:40,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.40ms. Allocated memory is still 189.8MB. Free memory was 154.3MB in the beginning and 152.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-09 03:46:40,350 INFO L158 Benchmark]: Boogie Preprocessor took 10.64ms. Allocated memory is still 189.8MB. Free memory was 152.7MB in the beginning and 151.8MB in the end (delta: 872.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-09 03:46:40,351 INFO L158 Benchmark]: RCFGBuilder took 177.39ms. Allocated memory is still 189.8MB. Free memory was 151.7MB in the beginning and 142.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB.
[2022-02-09 03:46:40,351 INFO L158 Benchmark]: TraceAbstraction took 2320.30ms. Allocated memory was 189.8MB in the beginning and 228.6MB in the end (delta: 38.8MB). Free memory was 142.4MB in the beginning and 78.7MB in the end (delta: 63.7MB). Peak memory consumption was 101.9MB. Max. memory is 8.0GB.
[2022-02-09 03:46:40,352 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 0.10ms. Allocated memory is still 189.8MB. Free memory is still 155.4MB. There was no memory consumed. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 25.40ms. Allocated memory is still 189.8MB. Free memory was 154.3MB in the beginning and 152.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 10.64ms. Allocated memory is still 189.8MB. Free memory was 152.7MB in the beginning and 151.8MB in the end (delta: 872.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 177.39ms. Allocated memory is still 189.8MB. Free memory was 151.7MB in the beginning and 142.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB.
* TraceAbstraction took 2320.30ms. Allocated memory was 189.8MB in the beginning and 228.6MB in the end (delta: 38.8MB). Free memory was 142.4MB in the beginning and 78.7MB in the end (delta: 63.7MB). Peak memory consumption was 101.9MB. 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: 52]: 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 7 procedures, 41 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 163 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 159 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 68 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 72 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=185occurred in iteration=2, InterpolantAutomatonStates: 25, 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, 5 MinimizatonAttempts, 172 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 1244 SizeOfPredicates, 7 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 4/11 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 03:46:40,381 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...