/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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl


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


This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11
[2022-03-01 23:34:42,291 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-03-01 23:34:42,416 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf
[2022-03-01 23:34:42,438 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-03-01 23:34:42,438 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-03-01 23:34:42,439 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-03-01 23:34:42,439 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-03-01 23:34:42,439 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-03-01 23:34:42,439 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-03-01 23:34:42,440 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-03-01 23:34:42,440 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-03-01 23:34:42,440 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-03-01 23:34:42,440 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-03-01 23:34:42,441 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-03-01 23:34:42,441 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-03-01 23:34:42,441 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-03-01 23:34:42,441 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-03-01 23:34:42,441 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-03-01 23:34:42,441 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-03-01 23:34:42,441 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-03-01 23:34:42,441 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-03-01 23:34:42,441 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-03-01 23:34:42,441 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-03-01 23:34:42,441 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-03-01 23:34:42,441 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-03-01 23:34:42,442 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-03-01 23:34:42,442 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-03-01 23:34:42,442 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-03-01 23:34:42,443 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-01 23:34:42,443 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-03-01 23:34:42,443 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-03-01 23:34:42,443 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-03-01 23:34:42,443 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-03-01 23:34:42,443 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-03-01 23:34:42,443 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-03-01 23:34:42,443 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-03-01 23:34:42,443 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-03-01 23:34:42,443 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-03-01 23:34:42,443 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS
[2022-03-01 23:34:42,444 INFO  L138        SettingsManager]:  * MCR: Overapproximate write-read-write conflicts=false
[2022-03-01 23:34:42,444 INFO  L138        SettingsManager]:  * MCR: Optimize fork and join=false
[2022-03-01 23:34:42,444 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-03-01 23:34:42,622 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-03-01 23:34:42,638 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-03-01 23:34:42,640 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-03-01 23:34:42,641 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-03-01 23:34:42,646 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-03-01 23:34:42,647 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl
[2022-03-01 23:34:42,647 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl'
[2022-03-01 23:34:42,677 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-03-01 23:34:42,678 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-03-01 23:34:42,679 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-03-01 23:34:42,679 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-03-01 23:34:42,679 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-03-01 23:34:42,688 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:34:42" (1/1) ...
[2022-03-01 23:34:42,692 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:34:42" (1/1) ...
[2022-03-01 23:34:42,696 INFO  L137                Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-03-01 23:34:42,697 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-03-01 23:34:42,699 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-03-01 23:34:42,699 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-03-01 23:34:42,699 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-03-01 23:34:42,704 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:34:42" (1/1) ...
[2022-03-01 23:34:42,704 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:34:42" (1/1) ...
[2022-03-01 23:34:42,705 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:34:42" (1/1) ...
[2022-03-01 23:34:42,705 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:34:42" (1/1) ...
[2022-03-01 23:34:42,707 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:34:42" (1/1) ...
[2022-03-01 23:34:42,709 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:34:42" (1/1) ...
[2022-03-01 23:34:42,709 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:34:42" (1/1) ...
[2022-03-01 23:34:42,710 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-03-01 23:34:42,710 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-03-01 23:34:42,710 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-03-01 23:34:42,710 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-03-01 23:34:42,711 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:34:42" (1/1) ...
[2022-03-01 23:34:42,716 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-01 23:34:42,720 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-01 23:34:42,748 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)
[2022-03-01 23:34:42,777 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
[2022-03-01 23:34:42,787 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2022-03-01 23:34:42,787 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-03-01 23:34:42,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-03-01 23:34:42,787 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2022-03-01 23:34:42,787 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-03-01 23:34:42,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-03-01 23:34:42,787 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-03-01 23:34:42,787 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-03-01 23:34:42,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-03-01 23:34:42,788 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-03-01 23:34:42,817 INFO  L234             CfgBuilder]: Building ICFG
[2022-03-01 23:34:42,818 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-03-01 23:34:42,879 INFO  L275             CfgBuilder]: Performing block encoding
[2022-03-01 23:34:42,888 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-03-01 23:34:42,888 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-03-01 23:34:42,889 INFO  L202        PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 11:34:42 BoogieIcfgContainer
[2022-03-01 23:34:42,889 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-03-01 23:34:42,890 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-03-01 23:34:42,890 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-03-01 23:34:42,895 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-03-01 23:34:42,895 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:34:42" (1/2) ...
[2022-03-01 23:34:42,900 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f6785c and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 11:34:42, skipping insertion in model container
[2022-03-01 23:34:42,901 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 11:34:42" (2/2) ...
[2022-03-01 23:34:42,901 INFO  L111   eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl
[2022-03-01 23:34:42,905 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-03-01 23:34:42,905 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-03-01 23:34:42,905 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-03-01 23:34:42,905 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-03-01 23:34:42,951 INFO  L148    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2022-03-01 23:34:42,991 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-03-01 23:34:42,992 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-01 23:34:42,994 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)
[2022-03-01 23:34:43,029 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
[2022-03-01 23:34:43,038 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-03-01 23:34:43,047 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false
[2022-03-01 23:34:43,047 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2022-03-01 23:34:43,153 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 78 transitions and produced 71 states.
[2022-03-01 23:34:43,155 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-01 23:34:43,158 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-01 23:34:43,159 INFO  L85        PathProgramCache]: Analyzing trace with hash 476613565, now seen corresponding path program 1 times
[2022-03-01 23:34:43,164 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-01 23:34:43,165 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355764344]
[2022-03-01 23:34:43,165 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-01 23:34:43,165 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-01 23:34:43,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-01 23:34:43,976 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-01 23:34:43,976 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-01 23:34:43,977 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355764344]
[2022-03-01 23:34:43,977 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355764344] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-01 23:34:43,978 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155517684]
[2022-03-01 23:34:43,978 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-01 23:34:43,978 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:34:43,979 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-01 23:34:43,980 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-03-01 23:34:43,981 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-03-01 23:34:44,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-01 23:34:44,041 WARN  L261         TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 41 conjunts are in the unsatisfiable core
[2022-03-01 23:34:44,045 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-01 23:34:44,836 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-01 23:34:44,836 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-01 23:34:45,495 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-01 23:34:45,495 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155517684] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-01 23:34:45,495 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-01 23:34:45,495 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 15] total 40
[2022-03-01 23:34:45,500 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730442991]
[2022-03-01 23:34:45,500 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-01 23:34:45,503 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 41 states
[2022-03-01 23:34:45,504 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-01 23:34:45,523 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants.
[2022-03-01 23:34:45,527 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1425, Unknown=0, NotChecked=0, Total=1640
[2022-03-01 23:34:45,527 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:34:45,529 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-01 23:34:45,534 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 41 states, 41 states have (on average 2.024390243902439) internal successors, (83), 40 states have internal predecessors, (83), 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)
[2022-03-01 23:34:45,535 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:34:47,752 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 101 transitions and produced 99 states.
[2022-03-01 23:34:47,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:34:47,769 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-03-01 23:34:47,969 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2022-03-01 23:34:47,970 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-01 23:34:47,970 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-01 23:34:47,971 INFO  L85        PathProgramCache]: Analyzing trace with hash 301442247, now seen corresponding path program 2 times
[2022-03-01 23:34:47,971 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-01 23:34:47,971 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109347516]
[2022-03-01 23:34:47,971 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-01 23:34:47,971 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-01 23:34:47,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-01 23:34:48,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 85 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-01 23:34:48,235 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-01 23:34:48,235 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109347516]
[2022-03-01 23:34:48,235 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109347516] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-01 23:34:48,235 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525438108]
[2022-03-01 23:34:48,235 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-03-01 23:34:48,236 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:34:48,236 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-01 23:34:48,237 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-03-01 23:34:48,238 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-03-01 23:34:48,264 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-03-01 23:34:48,265 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-01 23:34:48,265 WARN  L261         TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 53 conjunts are in the unsatisfiable core
[2022-03-01 23:34:48,267 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-01 23:34:48,897 INFO  L134       CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-01 23:34:48,898 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-01 23:34:49,460 INFO  L134       CoverageAnalysis]: Checked inductivity of 85 backedges. 1 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-01 23:34:49,460 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [525438108] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-01 23:34:49,460 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-01 23:34:49,460 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 50
[2022-03-01 23:34:49,461 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609997434]
[2022-03-01 23:34:49,461 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-01 23:34:49,461 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 51 states
[2022-03-01 23:34:49,461 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-01 23:34:49,462 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants.
[2022-03-01 23:34:49,463 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=2104, Unknown=0, NotChecked=0, Total=2550
[2022-03-01 23:34:49,463 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:34:49,463 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-01 23:34:49,463 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 51 states, 51 states have (on average 1.9803921568627452) internal successors, (101), 50 states have internal predecessors, (101), 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)
[2022-03-01 23:34:49,463 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:34:49,463 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:34:52,535 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 250 transitions and produced 200 states.
[2022-03-01 23:34:52,535 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:34:52,535 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. 
[2022-03-01 23:34:52,551 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-03-01 23:34:52,735 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:34:52,736 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-01 23:34:52,736 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-01 23:34:52,736 INFO  L85        PathProgramCache]: Analyzing trace with hash 1195228873, now seen corresponding path program 3 times
[2022-03-01 23:34:52,736 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-01 23:34:52,737 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121311842]
[2022-03-01 23:34:52,737 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-01 23:34:52,737 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-01 23:34:52,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-01 23:34:53,141 INFO  L134       CoverageAnalysis]: Checked inductivity of 170 backedges. 100 proven. 68 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-03-01 23:34:53,141 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-01 23:34:53,141 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121311842]
[2022-03-01 23:34:53,142 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121311842] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-01 23:34:53,145 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050788586]
[2022-03-01 23:34:53,145 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-03-01 23:34:53,145 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:34:53,145 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-01 23:34:53,164 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-03-01 23:34:53,165 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-03-01 23:34:53,203 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s)
[2022-03-01 23:34:53,204 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-01 23:34:53,205 WARN  L261         TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 64 conjunts are in the unsatisfiable core
[2022-03-01 23:34:53,207 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-01 23:34:54,032 INFO  L134       CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-01 23:34:54,033 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-01 23:34:55,306 INFO  L134       CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-03-01 23:34:55,306 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050788586] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-01 23:34:55,307 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-01 23:34:55,307 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22, 20] total 57
[2022-03-01 23:34:55,307 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660220616]
[2022-03-01 23:34:55,307 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-01 23:34:55,307 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 58 states
[2022-03-01 23:34:55,307 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-01 23:34:55,308 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants.
[2022-03-01 23:34:55,309 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=661, Invalid=2645, Unknown=0, NotChecked=0, Total=3306
[2022-03-01 23:34:55,309 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:34:55,309 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-01 23:34:55,309 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 58 states, 58 states have (on average 2.0517241379310347) internal successors, (119), 57 states have internal predecessors, (119), 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)
[2022-03-01 23:34:55,309 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:34:55,309 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. 
[2022-03-01 23:34:55,309 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:34:58,540 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 490 transitions and produced 310 states.
[2022-03-01 23:34:58,540 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:34:58,540 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. 
[2022-03-01 23:34:58,540 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. 
[2022-03-01 23:34:58,559 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2022-03-01 23:34:58,755 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:34:58,756 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-01 23:34:58,756 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-01 23:34:58,756 INFO  L85        PathProgramCache]: Analyzing trace with hash -1374156275, now seen corresponding path program 4 times
[2022-03-01 23:34:58,756 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-01 23:34:58,756 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187461428]
[2022-03-01 23:34:58,756 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-01 23:34:58,757 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-01 23:34:58,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-01 23:34:59,101 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 168 proven. 88 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-03-01 23:34:59,101 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-01 23:34:59,102 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187461428]
[2022-03-01 23:34:59,102 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187461428] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-01 23:34:59,102 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815718368]
[2022-03-01 23:34:59,102 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-03-01 23:34:59,102 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:34:59,102 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-01 23:34:59,103 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-03-01 23:34:59,104 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-03-01 23:34:59,145 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-03-01 23:34:59,145 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-01 23:34:59,147 WARN  L261         TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 81 conjunts are in the unsatisfiable core
[2022-03-01 23:34:59,148 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-01 23:35:00,002 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-01 23:35:00,002 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-01 23:35:00,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-03-01 23:35:00,757 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815718368] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-01 23:35:00,757 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-01 23:35:00,757 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 26, 23] total 65
[2022-03-01 23:35:00,757 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033797417]
[2022-03-01 23:35:00,757 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-01 23:35:00,758 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 66 states
[2022-03-01 23:35:00,758 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-01 23:35:00,758 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants.
[2022-03-01 23:35:00,759 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=887, Invalid=3403, Unknown=0, NotChecked=0, Total=4290
[2022-03-01 23:35:00,760 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:35:00,760 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-01 23:35:00,760 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 66 states, 66 states have (on average 2.121212121212121) internal successors, (140), 65 states have internal predecessors, (140), 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)
[2022-03-01 23:35:00,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:35:00,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. 
[2022-03-01 23:35:00,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. 
[2022-03-01 23:35:00,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:35:06,985 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 1272 states.
[2022-03-01 23:35:06,985 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:35:06,985 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. 
[2022-03-01 23:35:06,986 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. 
[2022-03-01 23:35:06,986 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. 
[2022-03-01 23:35:07,004 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-03-01 23:35:07,204 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:35:07,204 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-01 23:35:07,204 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-01 23:35:07,205 INFO  L85        PathProgramCache]: Analyzing trace with hash 1104101887, now seen corresponding path program 5 times
[2022-03-01 23:35:07,205 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-01 23:35:07,205 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630115967]
[2022-03-01 23:35:07,205 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-01 23:35:07,205 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-01 23:35:07,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-01 23:35:08,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 1025 backedges. 19 proven. 994 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2022-03-01 23:35:08,621 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-01 23:35:08,621 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630115967]
[2022-03-01 23:35:08,621 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630115967] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-01 23:35:08,622 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761159193]
[2022-03-01 23:35:08,622 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-03-01 23:35:08,622 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:35:08,622 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-01 23:35:08,625 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-03-01 23:35:08,626 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-03-01 23:35:08,695 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s)
[2022-03-01 23:35:08,695 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-01 23:35:08,698 WARN  L261         TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 189 conjunts are in the unsatisfiable core
[2022-03-01 23:35:08,702 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-01 23:35:11,407 INFO  L134       CoverageAnalysis]: Checked inductivity of 1025 backedges. 0 proven. 1025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-01 23:35:11,407 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-01 23:35:14,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 1025 backedges. 0 proven. 1009 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2022-03-01 23:35:14,127 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761159193] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-01 23:35:14,127 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-01 23:35:14,127 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 53, 34] total 120
[2022-03-01 23:35:14,128 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199684246]
[2022-03-01 23:35:14,128 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-01 23:35:14,129 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 121 states
[2022-03-01 23:35:14,129 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-01 23:35:14,130 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants.
[2022-03-01 23:35:14,155 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=2594, Invalid=11926, Unknown=0, NotChecked=0, Total=14520
[2022-03-01 23:35:14,155 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:35:14,155 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-01 23:35:14,156 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 121 states, 121 states have (on average 2.2892561983471076) internal successors, (277), 120 states have internal predecessors, (277), 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)
[2022-03-01 23:35:14,156 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:35:14,156 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. 
[2022-03-01 23:35:14,156 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. 
[2022-03-01 23:35:14,156 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 140 states. 
[2022-03-01 23:35:14,156 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:35:38,582 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 2685 transitions and produced 1553 states.
[2022-03-01 23:35:38,582 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:35:38,582 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. 
[2022-03-01 23:35:38,582 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. 
[2022-03-01 23:35:38,582 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. 
[2022-03-01 23:35:38,583 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 342 states. 
[2022-03-01 23:35:38,600 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-03-01 23:35:38,787 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:35:38,788 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-01 23:35:38,788 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-01 23:35:38,788 INFO  L85        PathProgramCache]: Analyzing trace with hash 1917777315, now seen corresponding path program 6 times
[2022-03-01 23:35:38,788 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-01 23:35:38,788 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067998830]
[2022-03-01 23:35:38,788 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-01 23:35:38,789 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-01 23:35:38,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-01 23:35:42,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 4405 backedges. 102 proven. 4295 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2022-03-01 23:35:42,615 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-01 23:35:42,615 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067998830]
[2022-03-01 23:35:42,615 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067998830] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-01 23:35:42,615 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605758180]
[2022-03-01 23:35:42,615 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-03-01 23:35:42,616 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:35:42,616 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-01 23:35:42,617 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-03-01 23:35:42,617 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-03-01 23:35:42,795 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 48 check-sat command(s)
[2022-03-01 23:35:42,795 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-01 23:35:42,800 WARN  L261         TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 373 conjunts are in the unsatisfiable core
[2022-03-01 23:35:42,804 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-01 23:35:49,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 4405 backedges. 0 proven. 4405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-01 23:35:49,958 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-01 23:35:56,662 INFO  L134       CoverageAnalysis]: Checked inductivity of 4405 backedges. 0 proven. 4375 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2022-03-01 23:35:56,663 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605758180] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-01 23:35:56,663 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-01 23:35:56,663 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 99, 66] total 248
[2022-03-01 23:35:56,663 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57670231]
[2022-03-01 23:35:56,663 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-01 23:35:56,664 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 249 states
[2022-03-01 23:35:56,664 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-01 23:35:56,665 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 249 interpolants.
[2022-03-01 23:35:56,673 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12018, Invalid=49734, Unknown=0, NotChecked=0, Total=61752
[2022-03-01 23:35:56,673 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:35:56,674 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-01 23:35:56,674 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 249 states, 249 states have (on average 2.180722891566265) internal successors, (543), 248 states have internal predecessors, (543), 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)
[2022-03-01 23:35:56,674 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:35:56,674 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. 
[2022-03-01 23:35:56,674 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. 
[2022-03-01 23:35:56,674 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 140 states. 
[2022-03-01 23:35:56,674 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 342 states. 
[2022-03-01 23:35:56,674 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:36:30,771 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1971 transitions and produced 1267 states.
[2022-03-01 23:36:30,771 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:36:30,771 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. 
[2022-03-01 23:36:30,771 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. 
[2022-03-01 23:36:30,771 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. 
[2022-03-01 23:36:30,772 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 342 states. 
[2022-03-01 23:36:30,772 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 465 states. 
[2022-03-01 23:36:30,791 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2022-03-01 23:36:30,977 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:36:30,978 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-01 23:36:30,978 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-01 23:36:30,979 INFO  L85        PathProgramCache]: Analyzing trace with hash -1884969193, now seen corresponding path program 7 times
[2022-03-01 23:36:30,979 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-01 23:36:30,979 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855284593]
[2022-03-01 23:36:30,979 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-01 23:36:30,979 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-01 23:36:31,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-01 23:36:35,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 14381 backedges. 12885 proven. 1396 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2022-03-01 23:36:35,722 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-01 23:36:35,722 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855284593]
[2022-03-01 23:36:35,722 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855284593] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-01 23:36:35,722 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241630198]
[2022-03-01 23:36:35,722 INFO  L93    rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-03-01 23:36:35,722 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-01 23:36:35,723 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-01 23:36:35,724 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-03-01 23:36:35,727 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-03-01 23:36:35,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-01 23:36:35,863 WARN  L261         TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 605 conjunts are in the unsatisfiable core
[2022-03-01 23:36:35,869 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-01 23:36:50,425 INFO  L134       CoverageAnalysis]: Checked inductivity of 14381 backedges. 0 proven. 14381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-01 23:36:50,426 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-01 23:36:59,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 14381 backedges. 0 proven. 14351 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2022-03-01 23:36:59,722 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [241630198] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-01 23:36:59,722 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-01 23:36:59,722 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 157, 124] total 378
[2022-03-01 23:36:59,722 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704810586]
[2022-03-01 23:36:59,722 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-01 23:36:59,723 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 379 states
[2022-03-01 23:36:59,723 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-01 23:36:59,729 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 379 interpolants.
[2022-03-01 23:36:59,736 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47844, Invalid=95418, Unknown=0, NotChecked=0, Total=143262
[2022-03-01 23:36:59,736 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-01 23:36:59,736 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-01 23:36:59,737 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 379 states, 379 states have (on average 2.174142480211082) internal successors, (824), 378 states have internal predecessors, (824), 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)
[2022-03-01 23:36:59,737 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-01 23:36:59,737 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. 
[2022-03-01 23:36:59,737 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. 
[2022-03-01 23:36:59,737 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 140 states. 
[2022-03-01 23:36:59,737 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 342 states. 
[2022-03-01 23:36:59,737 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 465 states. 
[2022-03-01 23:36:59,737 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.