/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-MCRwithoutDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_4.bpl


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This is Ultimate 0.2.2-?-bc289cb
[2022-01-29 13:02:11,121 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-01-29 13:02:11,219 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-MCRwithoutDepranks.epf
[2022-01-29 13:02:11,235 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-01-29 13:02:11,236 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-29 13:02:11,236 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-01-29 13:02:11,237 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-01-29 13:02:11,237 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-01-29 13:02:11,237 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-01-29 13:02:11,238 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-01-29 13:02:11,238 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-01-29 13:02:11,238 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-01-29 13:02:11,238 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-29 13:02:11,239 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-01-29 13:02:11,239 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-01-29 13:02:11,239 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-01-29 13:02:11,239 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-01-29 13:02:11,239 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-01-29 13:02:11,239 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-29 13:02:11,239 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-01-29 13:02:11,240 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-01-29 13:02:11,240 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-01-29 13:02:11,240 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-01-29 13:02:11,240 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-01-29 13:02:11,240 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-29 13:02:11,240 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-01-29 13:02:11,240 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-01-29 13:02:11,241 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-01-29 13:02:11,241 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-29 13:02:11,242 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-29 13:02:11,242 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-01-29 13:02:11,242 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-01-29 13:02:11,242 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-01-29 13:02:11,242 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-01-29 13:02:11,242 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-01-29 13:02:11,242 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-01-29 13:02:11,242 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-01-29 13:02:11,242 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS
[2022-01-29 13:02:11,243 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-01-29 13:02:11,434 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-29 13:02:11,461 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-29 13:02:11,463 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-29 13:02:11,463 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-01-29 13:02:11,471 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-01-29 13:02:11,472 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_4.bpl
[2022-01-29 13:02:11,472 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_4.bpl'
[2022-01-29 13:02:11,491 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-29 13:02:11,493 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-01-29 13:02:11,493 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-01-29 13:02:11,493 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-01-29 13:02:11,494 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-01-29 13:02:11,506 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:02:11" (1/1) ...
[2022-01-29 13:02:11,511 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:02:11" (1/1) ...
[2022-01-29 13:02:11,516 INFO  L137                Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-01-29 13:02:11,517 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-01-29 13:02:11,518 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-29 13:02:11,519 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-29 13:02:11,519 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-01-29 13:02:11,524 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:02:11" (1/1) ...
[2022-01-29 13:02:11,524 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:02:11" (1/1) ...
[2022-01-29 13:02:11,524 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:02:11" (1/1) ...
[2022-01-29 13:02:11,524 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:02:11" (1/1) ...
[2022-01-29 13:02:11,526 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:02:11" (1/1) ...
[2022-01-29 13:02:11,526 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:02:11" (1/1) ...
[2022-01-29 13:02:11,526 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:02:11" (1/1) ...
[2022-01-29 13:02:11,527 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-29 13:02:11,527 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-29 13:02:11,527 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-01-29 13:02:11,528 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-01-29 13:02:11,532 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:02:11" (1/1) ...
[2022-01-29 13:02:11,537 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-29 13:02:11,547 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-29 13:02:11,584 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)
[2022-01-29 13:02:11,588 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
[2022-01-29 13:02:11,619 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration
[2022-01-29 13:02:11,620 INFO  L130     BoogieDeclarations]: Found specification of procedure set_1
[2022-01-29 13:02:11,620 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_1
[2022-01-29 13:02:11,620 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration
[2022-01-29 13:02:11,620 INFO  L130     BoogieDeclarations]: Found specification of procedure set_2
[2022-01-29 13:02:11,620 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_2
[2022-01-29 13:02:11,620 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration
[2022-01-29 13:02:11,621 INFO  L130     BoogieDeclarations]: Found specification of procedure set_3
[2022-01-29 13:02:11,621 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_3
[2022-01-29 13:02:11,622 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration
[2022-01-29 13:02:11,622 INFO  L130     BoogieDeclarations]: Found specification of procedure set_0
[2022-01-29 13:02:11,622 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_0
[2022-01-29 13:02:11,623 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-01-29 13:02:11,623 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-29 13:02:11,624 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-29 13:02:11,624 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-01-29 13:02:11,662 INFO  L234             CfgBuilder]: Building ICFG
[2022-01-29 13:02:11,664 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-29 13:02:11,715 INFO  L275             CfgBuilder]: Performing block encoding
[2022-01-29 13:02:11,719 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-29 13:02:11,719 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-01-29 13:02:11,721 INFO  L202        PluginConnector]: Adding new model example_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 01:02:11 BoogieIcfgContainer
[2022-01-29 13:02:11,721 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-29 13:02:11,722 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-29 13:02:11,722 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-01-29 13:02:11,724 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-01-29 13:02:11,725 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 01:02:11" (1/2) ...
[2022-01-29 13:02:11,725 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe2c469 and model type example_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 01:02:11, skipping insertion in model container
[2022-01-29 13:02:11,725 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 01:02:11" (2/2) ...
[2022-01-29 13:02:11,726 INFO  L111   eAbstractionObserver]: Analyzing ICFG example_4.bpl
[2022-01-29 13:02:11,729 WARN  L149   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-01-29 13:02:11,729 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-01-29 13:02:11,730 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-29 13:02:11,730 INFO  L513   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-01-29 13:02:11,753 INFO  L148    ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions.
[2022-01-29 13:02:11,783 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-01-29 13:02:11,784 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-29 13:02:11,786 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-01-29 13:02:11,787 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2022-01-29 13:02:11,845 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-29 13:02:11,850 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=PARTIAL_ORDER_FA, 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
[2022-01-29 13:02:11,850 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2022-01-29 13:02:11,985 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-01-29 13:02:11,989 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-29 13:02:11,989 INFO  L85        PathProgramCache]: Analyzing trace with hash -1899103186, now seen corresponding path program 1 times
[2022-01-29 13:02:11,996 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-29 13:02:11,997 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247150490]
[2022-01-29 13:02:11,997 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-29 13:02:11,997 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-29 13:02:12,046 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-29 13:02:12,090 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-29 13:02:12,091 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-29 13:02:12,091 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247150490]
[2022-01-29 13:02:12,091 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247150490] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-29 13:02:12,091 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-29 13:02:12,092 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-29 13:02:12,092 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049031899]
[2022-01-29 13:02:12,093 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-29 13:02:12,097 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-29 13:02:12,097 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-29 13:02:12,110 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-29 13:02:12,111 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-29 13:02:12,111 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:12,112 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-01-29 13:02:12,113 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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)
[2022-01-29 13:02:12,114 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:12,225 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:12,226 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-29 13:02:12,226 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-01-29 13:02:12,227 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-29 13:02:12,227 INFO  L85        PathProgramCache]: Analyzing trace with hash -1899072496, now seen corresponding path program 1 times
[2022-01-29 13:02:12,227 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-29 13:02:12,228 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759710997]
[2022-01-29 13:02:12,228 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-29 13:02:12,228 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-29 13:02:12,234 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-29 13:02:12,275 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-29 13:02:12,275 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-29 13:02:12,275 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759710997]
[2022-01-29 13:02:12,276 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759710997] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-29 13:02:12,276 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-29 13:02:12,276 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-29 13:02:12,276 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229007915]
[2022-01-29 13:02:12,276 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-29 13:02:12,290 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-29 13:02:12,290 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-29 13:02:12,291 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-29 13:02:12,291 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-29 13:02:12,291 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:12,291 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-01-29 13:02:12,292 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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)
[2022-01-29 13:02:12,292 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:12,292 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:12,386 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:12,387 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:12,387 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-29 13:02:12,388 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-01-29 13:02:12,388 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-29 13:02:12,388 INFO  L85        PathProgramCache]: Analyzing trace with hash -1899043666, now seen corresponding path program 1 times
[2022-01-29 13:02:12,388 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-29 13:02:12,389 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145567379]
[2022-01-29 13:02:12,389 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-29 13:02:12,389 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-29 13:02:12,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-29 13:02:12,585 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-29 13:02:12,586 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-29 13:02:12,586 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145567379]
[2022-01-29 13:02:12,586 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145567379] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-29 13:02:12,587 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-29 13:02:12,587 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-29 13:02:12,587 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476513269]
[2022-01-29 13:02:12,587 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-29 13:02:12,588 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-01-29 13:02:12,588 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-29 13:02:12,589 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-01-29 13:02:12,590 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2022-01-29 13:02:12,590 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:12,590 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-01-29 13:02:12,590 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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)
[2022-01-29 13:02:12,590 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:12,591 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:12,591 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:13,164 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:13,164 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:13,164 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:13,165 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-01-29 13:02:13,165 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-01-29 13:02:13,166 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-29 13:02:13,166 INFO  L85        PathProgramCache]: Analyzing trace with hash 445667984, now seen corresponding path program 2 times
[2022-01-29 13:02:13,167 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-29 13:02:13,167 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655170527]
[2022-01-29 13:02:13,167 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-29 13:02:13,167 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-29 13:02:13,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-29 13:02:13,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-29 13:02:13,398 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-29 13:02:13,398 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655170527]
[2022-01-29 13:02:13,398 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655170527] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-29 13:02:13,398 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-29 13:02:13,398 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-29 13:02:13,398 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732989788]
[2022-01-29 13:02:13,399 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-29 13:02:13,399 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-01-29 13:02:13,399 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-29 13:02:13,399 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-01-29 13:02:13,400 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2022-01-29 13:02:13,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:13,400 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-01-29 13:02:13,400 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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)
[2022-01-29 13:02:13,400 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:13,400 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:13,400 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:13,400 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:21,045 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:21,046 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:21,046 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:21,046 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:21,046 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-01-29 13:02:21,047 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-01-29 13:02:21,047 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-29 13:02:21,047 INFO  L85        PathProgramCache]: Analyzing trace with hash 805988880, now seen corresponding path program 3 times
[2022-01-29 13:02:21,047 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-29 13:02:21,048 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451072576]
[2022-01-29 13:02:21,048 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-29 13:02:21,048 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-29 13:02:21,053 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-29 13:02:21,184 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-29 13:02:21,185 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-29 13:02:21,185 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451072576]
[2022-01-29 13:02:21,185 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451072576] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-29 13:02:21,185 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-29 13:02:21,185 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-29 13:02:21,185 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490463212]
[2022-01-29 13:02:21,185 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-29 13:02:21,186 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-01-29 13:02:21,186 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-29 13:02:21,186 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-01-29 13:02:21,187 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2022-01-29 13:02:21,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:21,187 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-01-29 13:02:21,187 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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)
[2022-01-29 13:02:21,187 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:21,187 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:21,187 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:21,187 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:21,187 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:30,262 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:30,263 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:30,263 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:30,263 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:30,263 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:30,263 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-01-29 13:02:30,263 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-01-29 13:02:30,280 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-29 13:02:30,280 INFO  L85        PathProgramCache]: Analyzing trace with hash -211955184, now seen corresponding path program 4 times
[2022-01-29 13:02:30,281 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-29 13:02:30,281 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256894046]
[2022-01-29 13:02:30,281 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-29 13:02:30,281 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-29 13:02:30,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-29 13:02:30,402 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-29 13:02:30,402 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-29 13:02:30,402 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256894046]
[2022-01-29 13:02:30,403 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256894046] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-29 13:02:30,403 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-29 13:02:30,403 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-29 13:02:30,403 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239798465]
[2022-01-29 13:02:30,403 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-29 13:02:30,403 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-01-29 13:02:30,403 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-29 13:02:30,404 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-01-29 13:02:30,404 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2022-01-29 13:02:30,404 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:30,404 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-01-29 13:02:30,404 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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)
[2022-01-29 13:02:30,404 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:30,404 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:30,405 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:30,405 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:30,405 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:30,405 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:43,206 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:43,207 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:43,207 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:43,208 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:43,208 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:43,208 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:43,208 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-01-29 13:02:43,208 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-01-29 13:02:43,209 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-29 13:02:43,209 INFO  L85        PathProgramCache]: Analyzing trace with hash -1123260558, now seen corresponding path program 5 times
[2022-01-29 13:02:43,209 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-29 13:02:43,209 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185728014]
[2022-01-29 13:02:43,209 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-29 13:02:43,209 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-29 13:02:43,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-29 13:02:43,302 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-29 13:02:43,303 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-29 13:02:43,303 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185728014]
[2022-01-29 13:02:43,303 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185728014] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-29 13:02:43,303 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-29 13:02:43,303 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-29 13:02:43,303 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235081389]
[2022-01-29 13:02:43,303 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-29 13:02:43,304 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-01-29 13:02:43,304 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-29 13:02:43,304 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-01-29 13:02:43,304 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2022-01-29 13:02:43,304 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:43,305 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-01-29 13:02:43,305 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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)
[2022-01-29 13:02:43,305 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:43,305 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:43,305 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:43,305 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:43,305 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:43,305 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:43,305 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:59,372 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:59,372 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:59,372 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:59,372 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:59,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:59,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:59,373 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:59,373 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-01-29 13:02:59,374 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-01-29 13:02:59,374 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-01-29 13:02:59,374 INFO  L85        PathProgramCache]: Analyzing trace with hash -1451643440, now seen corresponding path program 6 times
[2022-01-29 13:02:59,374 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-29 13:02:59,375 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746817804]
[2022-01-29 13:02:59,375 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-29 13:02:59,375 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-29 13:02:59,379 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-29 13:02:59,444 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-29 13:02:59,444 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-29 13:02:59,444 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746817804]
[2022-01-29 13:02:59,444 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746817804] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-29 13:02:59,444 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-29 13:02:59,444 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-29 13:02:59,444 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507681326]
[2022-01-29 13:02:59,445 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-29 13:02:59,445 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-01-29 13:02:59,445 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-29 13:02:59,445 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-01-29 13:02:59,445 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2022-01-29 13:02:59,445 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-01-29 13:02:59,446 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-01-29 13:02:59,446 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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)
[2022-01-29 13:02:59,446 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:59,446 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-01-29 13:02:59,446 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:59,446 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:59,446 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:59,446 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:59,446 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-01-29 13:02:59,446 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.