/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-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-subst.wvr.bpl


--------------------------------------------------------------------------------


This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
[2022-02-10 16:29:35,204 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-02-10 16:29:35,293 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-02-10 16:29:35,295 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-Lazy.epf
[2022-02-10 16:29:35,328 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-02-10 16:29:35,328 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-10 16:29:35,328 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-10 16:29:35,328 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-10 16:29:35,329 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-10 16:29:35,329 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-10 16:29:35,330 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-10 16:29:35,330 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-02-10 16:29:35,330 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-02-10 16:29:35,330 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-10 16:29:35,331 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-02-10 16:29:35,331 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-02-10 16:29:35,331 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-02-10 16:29:35,331 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-02-10 16:29:35,331 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-02-10 16:29:35,331 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-10 16:29:35,331 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-02-10 16:29:35,331 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-02-10 16:29:35,331 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-02-10 16:29:35,331 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-02-10 16:29:35,331 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-02-10 16:29:35,332 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-10 16:29:35,332 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-02-10 16:29:35,332 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-02-10 16:29:35,333 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-02-10 16:29:35,333 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-10 16:29:35,333 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-10 16:29:35,333 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-02-10 16:29:35,333 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-02-10 16:29:35,333 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-10 16:29:35,333 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-02-10 16:29:35,333 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-10 16:29:35,334 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-02-10 16:29:35,334 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-02-10 16:29:35,334 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-10 16:29:35,334 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS
[2022-02-10 16:29:35,334 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-10 16:29:35,513 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-10 16:29:35,531 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-10 16:29:35,533 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-10 16:29:35,534 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-02-10 16:29:35,535 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-02-10 16:29:35,535 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-subst.wvr.bpl
[2022-02-10 16:29:35,536 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-subst.wvr.bpl'
[2022-02-10 16:29:35,569 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-10 16:29:35,570 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-10 16:29:35,571 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-10 16:29:35,571 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-10 16:29:35,571 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-10 16:29:35,583 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:29:35" (1/1) ...
[2022-02-10 16:29:35,597 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:29:35" (1/1) ...
[2022-02-10 16:29:35,602 INFO  L137                Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-02-10 16:29:35,603 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-10 16:29:35,605 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-10 16:29:35,605 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-10 16:29:35,605 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-02-10 16:29:35,610 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:29:35" (1/1) ...
[2022-02-10 16:29:35,610 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:29:35" (1/1) ...
[2022-02-10 16:29:35,612 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:29:35" (1/1) ...
[2022-02-10 16:29:35,612 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:29:35" (1/1) ...
[2022-02-10 16:29:35,615 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:29:35" (1/1) ...
[2022-02-10 16:29:35,616 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:29:35" (1/1) ...
[2022-02-10 16:29:35,617 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:29:35" (1/1) ...
[2022-02-10 16:29:35,620 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-10 16:29:35,621 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-10 16:29:35,621 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-02-10 16:29:35,621 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-02-10 16:29:35,622 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:29:35" (1/1) ...
[2022-02-10 16:29:35,628 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-10 16:29:35,634 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-10 16:29:35,656 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)
[2022-02-10 16:29:35,662 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
[2022-02-10 16:29:35,681 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2022-02-10 16:29:35,681 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-02-10 16:29:35,681 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-02-10 16:29:35,681 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2022-02-10 16:29:35,681 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-02-10 16:29:35,682 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-02-10 16:29:35,682 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-02-10 16:29:35,682 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-10 16:29:35,682 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-10 16:29:35,682 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration
[2022-02-10 16:29:35,682 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2022-02-10 16:29:35,682 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2022-02-10 16:29:35,683 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-10 16:29:35,720 INFO  L234             CfgBuilder]: Building ICFG
[2022-02-10 16:29:35,721 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-10 16:29:35,923 INFO  L275             CfgBuilder]: Performing block encoding
[2022-02-10 16:29:36,066 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-10 16:29:36,066 INFO  L299             CfgBuilder]: Removed 3 assume(true) statements.
[2022-02-10 16:29:36,068 INFO  L202        PluginConnector]: Adding new model nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 04:29:36 BoogieIcfgContainer
[2022-02-10 16:29:36,068 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-10 16:29:36,098 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-10 16:29:36,098 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-02-10 16:29:36,102 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-02-10 16:29:36,102 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:29:35" (1/2) ...
[2022-02-10 16:29:36,103 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e7b5d8 and model type nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 04:29:36, skipping insertion in model container
[2022-02-10 16:29:36,103 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nzb-file-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 04:29:36" (2/2) ...
[2022-02-10 16:29:36,104 INFO  L111   eAbstractionObserver]: Analyzing ICFG nzb-file-subst.wvr.bpl
[2022-02-10 16:29:36,107 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-10 16:29:36,107 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-10 16:29:36,108 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-10 16:29:36,108 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-10 16:29:36,154 INFO  L148    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-02-10 16:29:36,186 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-02-10 16:29:36,186 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-10 16:29:36,196 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)
[2022-02-10 16:29:36,220 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
[2022-02-10 16:29:36,228 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-10 16:29:36,235 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, mLazyFiniteAutomaton=true, 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
[2022-02-10 16:29:36,235 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-02-10 16:29:36,286 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 39 transitions and produced 40 states.
[2022-02-10 16:29:36,288 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-10 16:29:36,291 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-10 16:29:36,292 INFO  L85        PathProgramCache]: Analyzing trace with hash -1690959738, now seen corresponding path program 1 times
[2022-02-10 16:29:36,297 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-10 16:29:36,297 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117214853]
[2022-02-10 16:29:36,297 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-10 16:29:36,298 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-10 16:29:36,360 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-10 16:29:36,705 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-10 16:29:36,706 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-10 16:29:36,706 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117214853]
[2022-02-10 16:29:36,707 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117214853] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-10 16:29:36,707 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-10 16:29:36,708 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-10 16:29:36,709 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405290638]
[2022-02-10 16:29:36,710 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-10 16:29:36,714 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-10 16:29:36,714 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-10 16:29:36,731 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-10 16:29:36,732 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-10 16:29:36,733 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:29:36,734 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-10 16:29:36,735 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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)
[2022-02-10 16:29:36,735 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:29:36,945 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 56 transitions and produced 57 states.
[2022-02-10 16:29:36,946 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:29:36,946 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-10 16:29:36,946 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-10 16:29:36,949 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-10 16:29:36,949 INFO  L85        PathProgramCache]: Analyzing trace with hash 1491592372, now seen corresponding path program 1 times
[2022-02-10 16:29:36,949 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-10 16:29:36,949 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932156244]
[2022-02-10 16:29:36,949 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-10 16:29:36,950 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-10 16:29:36,975 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-10 16:29:36,988 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-10 16:29:36,988 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-10 16:29:36,988 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932156244]
[2022-02-10 16:29:36,989 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932156244] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-10 16:29:36,989 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-10 16:29:36,989 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-10 16:29:36,989 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103441887]
[2022-02-10 16:29:36,989 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-10 16:29:36,990 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-10 16:29:36,990 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-10 16:29:36,990 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-10 16:29:36,991 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-10 16:29:36,991 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:29:36,991 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-10 16:29:36,991 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.0) 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)
[2022-02-10 16:29:36,991 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:29:36,991 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:29:37,023 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 45 transitions and produced 46 states.
[2022-02-10 16:29:37,024 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:29:37,024 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:29:37,024 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-10 16:29:37,024 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-10 16:29:37,025 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-10 16:29:37,025 INFO  L85        PathProgramCache]: Analyzing trace with hash 1366459974, now seen corresponding path program 1 times
[2022-02-10 16:29:37,025 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-10 16:29:37,025 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398335734]
[2022-02-10 16:29:37,025 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-10 16:29:37,025 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-10 16:29:37,039 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-10 16:29:37,102 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-02-10 16:29:37,102 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-10 16:29:37,102 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398335734]
[2022-02-10 16:29:37,103 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398335734] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-10 16:29:37,103 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-10 16:29:37,104 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-10 16:29:37,104 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984279527]
[2022-02-10 16:29:37,104 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-10 16:29:37,105 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-10 16:29:37,105 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-10 16:29:37,106 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-10 16:29:37,106 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-02-10 16:29:37,106 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:29:37,107 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-10 16:29:37,107 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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)
[2022-02-10 16:29:37,107 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:29:37,107 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:29:37,107 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:29:38,209 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1611 transitions and produced 1528 states.
[2022-02-10 16:29:38,209 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:29:38,209 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:29:38,209 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-02-10 16:29:38,210 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-10 16:29:38,210 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-10 16:29:38,211 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-10 16:29:38,211 INFO  L85        PathProgramCache]: Analyzing trace with hash -1556193387, now seen corresponding path program 1 times
[2022-02-10 16:29:38,211 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-10 16:29:38,211 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103696900]
[2022-02-10 16:29:38,211 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-10 16:29:38,211 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-10 16:29:38,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-10 16:29:38,242 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-10 16:29:38,243 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-10 16:29:38,243 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103696900]
[2022-02-10 16:29:38,243 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103696900] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-10 16:29:38,243 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-10 16:29:38,244 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-10 16:29:38,245 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173567974]
[2022-02-10 16:29:38,248 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-10 16:29:38,248 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-10 16:29:38,248 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-10 16:29:38,248 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-10 16:29:38,248 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-10 16:29:38,249 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:29:38,249 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-10 16:29:38,249 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.0) 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)
[2022-02-10 16:29:38,249 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:29:38,249 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:29:38,249 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-02-10 16:29:38,249 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:29:38,269 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 49 transitions and produced 50 states.
[2022-02-10 16:29:38,270 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:29:38,270 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:29:38,270 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-02-10 16:29:38,270 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:29:38,270 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-10 16:29:38,271 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-10 16:29:38,272 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-10 16:29:38,272 INFO  L85        PathProgramCache]: Analyzing trace with hash -1673403802, now seen corresponding path program 1 times
[2022-02-10 16:29:38,272 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-10 16:29:38,272 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561417319]
[2022-02-10 16:29:38,272 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-10 16:29:38,272 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-10 16:29:38,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-10 16:29:38,317 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-02-10 16:29:38,317 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-10 16:29:38,317 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561417319]
[2022-02-10 16:29:38,317 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561417319] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-10 16:29:38,317 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-10 16:29:38,317 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-02-10 16:29:38,317 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015572635]
[2022-02-10 16:29:38,318 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-10 16:29:38,318 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-02-10 16:29:38,318 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-10 16:29:38,318 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-02-10 16:29:38,318 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-02-10 16:29:38,319 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:29:38,319 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-10 16:29:38,319 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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)
[2022-02-10 16:29:38,319 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:29:38,319 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:29:38,319 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-02-10 16:29:38,319 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:29:38,319 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:30:56,737 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 82722 transitions and produced 77930 states.
[2022-02-10 16:30:56,737 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:30:56,737 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:30:56,737 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-02-10 16:30:56,738 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:30:56,738 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-02-10 16:30:56,738 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-10 16:30:56,738 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-10 16:30:56,738 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-10 16:30:56,738 INFO  L85        PathProgramCache]: Analyzing trace with hash 303505418, now seen corresponding path program 2 times
[2022-02-10 16:30:56,739 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-10 16:30:56,739 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556431225]
[2022-02-10 16:30:56,739 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-10 16:30:56,739 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-10 16:30:56,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-10 16:30:56,845 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-10 16:30:56,845 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-10 16:30:56,845 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556431225]
[2022-02-10 16:30:56,845 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556431225] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-10 16:30:56,846 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-10 16:30:56,846 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-10 16:30:56,846 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161156238]
[2022-02-10 16:30:56,846 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-10 16:30:56,846 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-10 16:30:56,846 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-10 16:30:56,846 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-10 16:30:56,847 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-10 16:30:56,847 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:30:56,847 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-10 16:30:56,847 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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)
[2022-02-10 16:30:56,847 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:30:56,847 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:30:56,847 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-02-10 16:30:56,847 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:30:56,847 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2022-02-10 16:30:56,847 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:32:20,743 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 83397 transitions and produced 78576 states.
[2022-02-10 16:32:20,743 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:32:20,743 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:32:20,744 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-02-10 16:32:20,744 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:32:20,744 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-02-10 16:32:20,744 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:32:20,744 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-10 16:32:20,744 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-10 16:32:20,745 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-10 16:32:20,745 INFO  L85        PathProgramCache]: Analyzing trace with hash -1792403318, now seen corresponding path program 2 times
[2022-02-10 16:32:20,745 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-10 16:32:20,745 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515354632]
[2022-02-10 16:32:20,745 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-10 16:32:20,745 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-10 16:32:20,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-10 16:32:20,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-02-10 16:32:20,784 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-10 16:32:20,784 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515354632]
[2022-02-10 16:32:20,784 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515354632] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-10 16:32:20,784 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-10 16:32:20,785 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-10 16:32:20,785 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900610789]
[2022-02-10 16:32:20,785 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-10 16:32:20,785 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-10 16:32:20,785 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-10 16:32:20,785 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-10 16:32:20,786 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-02-10 16:32:20,786 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-10 16:32:20,786 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-10 16:32:20,786 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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)
[2022-02-10 16:32:20,786 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:32:20,786 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:32:20,786 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2022-02-10 16:32:20,786 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-02-10 16:32:20,786 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2022-02-10 16:32:20,786 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-02-10 16:32:20,786 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.