/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
[2022-03-04 01:05:56,725 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-03-04 01:05:56,832 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
[2022-03-04 01:05:56,860 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-03-04 01:05:56,860 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-03-04 01:05:56,860 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-03-04 01:05:56,860 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-03-04 01:05:56,861 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-03-04 01:05:56,861 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-03-04 01:05:56,862 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-03-04 01:05:56,862 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-03-04 01:05:56,862 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-03-04 01:05:56,862 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-03-04 01:05:56,863 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-03-04 01:05:56,863 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-03-04 01:05:56,863 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-03-04 01:05:56,863 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-03-04 01:05:56,863 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-03-04 01:05:56,863 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-03-04 01:05:56,863 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-03-04 01:05:56,863 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-03-04 01:05:56,863 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-03-04 01:05:56,863 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-03-04 01:05:56,864 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-03-04 01:05:56,864 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-03-04 01:05:56,864 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-03-04 01:05:56,864 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-03-04 01:05:56,864 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-03-04 01:05:56,864 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-04 01:05:56,864 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-03-04 01:05:56,864 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-03-04 01:05:56,864 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-03-04 01:05:56,865 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-03-04 01:05:56,865 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-03-04 01:05:56,865 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-03-04 01:05:56,865 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-03-04 01:05:56,865 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-03-04 01:05:56,865 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-03-04 01:05:56,865 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS
[2022-03-04 01:05:56,865 INFO  L138        SettingsManager]:  * MCR: Overapproximate write-read-write conflicts=false
[2022-03-04 01:05:56,866 INFO  L138        SettingsManager]:  * MCR: Optimize fork and join=false
[2022-03-04 01:05:56,866 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-03-04 01:05:57,100 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-03-04 01:05:57,120 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-03-04 01:05:57,122 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-03-04 01:05:57,122 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-03-04 01:05:57,123 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-03-04 01:05:57,124 INFO  L432   ainManager$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
[2022-03-04 01:05:57,124 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl'
[2022-03-04 01:05:57,148 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-03-04 01:05:57,150 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-03-04 01:05:57,150 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-03-04 01:05:57,151 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-03-04 01:05:57,151 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-03-04 01:05:57,159 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 04.03 01:05:57" (1/1) ...
[2022-03-04 01:05:57,163 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 04.03 01:05:57" (1/1) ...
[2022-03-04 01:05:57,168 INFO  L137                Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-03-04 01:05:57,170 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-03-04 01:05:57,172 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-03-04 01:05:57,172 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-03-04 01:05:57,172 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-03-04 01:05:57,178 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 04.03 01:05:57" (1/1) ...
[2022-03-04 01:05:57,178 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 04.03 01:05:57" (1/1) ...
[2022-03-04 01:05:57,179 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 04.03 01:05:57" (1/1) ...
[2022-03-04 01:05:57,179 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 04.03 01:05:57" (1/1) ...
[2022-03-04 01:05:57,181 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 04.03 01:05:57" (1/1) ...
[2022-03-04 01:05:57,184 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 04.03 01:05:57" (1/1) ...
[2022-03-04 01:05:57,185 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 04.03 01:05:57" (1/1) ...
[2022-03-04 01:05:57,185 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-03-04 01:05:57,187 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-03-04 01:05:57,187 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-03-04 01:05:57,187 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-03-04 01:05:57,188 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:05:57" (1/1) ...
[2022-03-04 01:05:57,194 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-04 01:05:57,203 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-04 01:05:57,223 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)
[2022-03-04 01:05:57,225 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
[2022-03-04 01:05:57,262 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2022-03-04 01:05:57,262 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-03-04 01:05:57,263 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-03-04 01:05:57,263 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2022-03-04 01:05:57,263 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-03-04 01:05:57,263 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-03-04 01:05:57,263 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-03-04 01:05:57,263 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-03-04 01:05:57,264 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-03-04 01:05:57,265 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-03-04 01:05:57,299 INFO  L234             CfgBuilder]: Building ICFG
[2022-03-04 01:05:57,300 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-03-04 01:05:57,402 INFO  L275             CfgBuilder]: Performing block encoding
[2022-03-04 01:05:57,429 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-03-04 01:05:57,429 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-03-04 01:05:57,434 INFO  L202        PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:05:57 BoogieIcfgContainer
[2022-03-04 01:05:57,435 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-03-04 01:05:57,437 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-03-04 01:05:57,437 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-03-04 01:05:57,440 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-03-04 01:05:57,441 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:05:57" (1/2) ...
[2022-03-04 01:05:57,442 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17076f40 and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 01:05:57, skipping insertion in model container
[2022-03-04 01:05:57,442 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 04.03 01:05:57" (2/2) ...
[2022-03-04 01:05:57,443 INFO  L111   eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl
[2022-03-04 01:05:57,452 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-03-04 01:05:57,453 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-03-04 01:05:57,453 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-03-04 01:05:57,453 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-03-04 01:05:57,507 INFO  L148    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2022-03-04 01:05:57,537 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-03-04 01:05:57,537 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-04 01:05:57,539 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)
[2022-03-04 01:05:57,540 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
[2022-03-04 01:05:57,559 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-03-04 01:05:57,563 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
[2022-03-04 01:05:57,563 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2022-03-04 01:05:57,661 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 78 transitions and produced 71 states.
[2022-03-04 01:05:57,668 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-04 01:05:57,672 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-04 01:05:57,672 INFO  L85        PathProgramCache]: Analyzing trace with hash 476613565, now seen corresponding path program 1 times
[2022-03-04 01:05:57,682 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-04 01:05:57,682 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271196864]
[2022-03-04 01:05:57,682 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-04 01:05:57,682 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-04 01:05:57,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-04 01:05:58,652 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-04 01:05:58,652 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-04 01:05:58,652 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271196864]
[2022-03-04 01:05:58,653 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271196864] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-04 01:05:58,653 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308082202]
[2022-03-04 01:05:58,654 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-04 01:05:58,654 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-04 01:05:58,654 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-04 01:05:58,656 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)
[2022-03-04 01:05:58,673 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-03-04 01:05:58,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-04 01:05:58,704 WARN  L261         TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 41 conjunts are in the unsatisfiable core
[2022-03-04 01:05:58,708 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-04 01:05:59,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-04 01:05:59,370 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-04 01:05:59,996 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-04 01:05:59,997 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308082202] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-04 01:05:59,997 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-04 01:05:59,997 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 15] total 40
[2022-03-04 01:05:59,999 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039204397]
[2022-03-04 01:05:59,999 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-04 01:06:00,002 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 41 states
[2022-03-04 01:06:00,003 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-04 01:06:00,018 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants.
[2022-03-04 01:06:00,021 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1425, Unknown=0, NotChecked=0, Total=1640
[2022-03-04 01:06:00,021 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:06:00,023 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-04 01:06:00,027 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)
[2022-03-04 01:06:00,027 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:06:02,482 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 101 transitions and produced 99 states.
[2022-03-04 01:06:02,483 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:06:02,502 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-03-04 01:06:02,696 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
[2022-03-04 01:06:02,696 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-04 01:06:02,697 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-04 01:06:02,697 INFO  L85        PathProgramCache]: Analyzing trace with hash 301442247, now seen corresponding path program 2 times
[2022-03-04 01:06:02,697 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-04 01:06:02,697 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393266801]
[2022-03-04 01:06:02,697 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-04 01:06:02,698 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-04 01:06:02,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-04 01:06:03,064 INFO  L134       CoverageAnalysis]: Checked inductivity of 85 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-04 01:06:03,065 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-04 01:06:03,065 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393266801]
[2022-03-04 01:06:03,065 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393266801] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-04 01:06:03,065 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365374598]
[2022-03-04 01:06:03,066 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-03-04 01:06:03,066 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-04 01:06:03,066 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-04 01:06:03,067 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)
[2022-03-04 01:06:03,094 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-03-04 01:06:03,105 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-03-04 01:06:03,105 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-04 01:06:03,106 WARN  L261         TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 53 conjunts are in the unsatisfiable core
[2022-03-04 01:06:03,108 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-04 01:06:03,850 INFO  L134       CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-04 01:06:03,850 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-04 01:06:04,435 INFO  L134       CoverageAnalysis]: Checked inductivity of 85 backedges. 1 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-04 01:06:04,436 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365374598] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-04 01:06:04,437 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-04 01:06:04,437 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 50
[2022-03-04 01:06:04,437 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199793091]
[2022-03-04 01:06:04,437 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-04 01:06:04,439 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 51 states
[2022-03-04 01:06:04,439 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-04 01:06:04,440 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants.
[2022-03-04 01:06:04,441 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=2104, Unknown=0, NotChecked=0, Total=2550
[2022-03-04 01:06:04,441 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:06:04,442 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-04 01:06:04,442 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)
[2022-03-04 01:06:04,442 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:06:04,442 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:06:07,659 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 250 transitions and produced 200 states.
[2022-03-04 01:06:07,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:06:07,660 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. 
[2022-03-04 01:06:07,676 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-03-04 01:06:07,879 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
[2022-03-04 01:06:07,880 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-04 01:06:07,880 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-04 01:06:07,880 INFO  L85        PathProgramCache]: Analyzing trace with hash 1195228873, now seen corresponding path program 3 times
[2022-03-04 01:06:07,880 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-04 01:06:07,881 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586922696]
[2022-03-04 01:06:07,881 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-04 01:06:07,881 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-04 01:06:07,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-04 01:06:08,254 INFO  L134       CoverageAnalysis]: Checked inductivity of 170 backedges. 100 proven. 68 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-03-04 01:06:08,255 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-04 01:06:08,255 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586922696]
[2022-03-04 01:06:08,255 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586922696] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-04 01:06:08,255 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534178742]
[2022-03-04 01:06:08,255 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-03-04 01:06:08,255 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-04 01:06:08,255 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-04 01:06:08,256 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)
[2022-03-04 01:06:08,258 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-03-04 01:06:08,287 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s)
[2022-03-04 01:06:08,287 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-04 01:06:08,288 WARN  L261         TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 64 conjunts are in the unsatisfiable core
[2022-03-04 01:06:08,290 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-04 01:06:09,019 INFO  L134       CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-04 01:06:09,019 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-04 01:06:10,357 INFO  L134       CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-03-04 01:06:10,357 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [534178742] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-04 01:06:10,357 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-04 01:06:10,358 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22, 20] total 57
[2022-03-04 01:06:10,358 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312044398]
[2022-03-04 01:06:10,358 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-04 01:06:10,358 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 58 states
[2022-03-04 01:06:10,358 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-04 01:06:10,359 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants.
[2022-03-04 01:06:10,359 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=661, Invalid=2645, Unknown=0, NotChecked=0, Total=3306
[2022-03-04 01:06:10,360 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:06:10,360 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-04 01:06:10,360 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)
[2022-03-04 01:06:10,360 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:06:10,360 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. 
[2022-03-04 01:06:10,360 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:06:13,259 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 490 transitions and produced 310 states.
[2022-03-04 01:06:13,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:06:13,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. 
[2022-03-04 01:06:13,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. 
[2022-03-04 01:06:13,285 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-03-04 01:06:13,475 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
[2022-03-04 01:06:13,476 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-04 01:06:13,476 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-04 01:06:13,476 INFO  L85        PathProgramCache]: Analyzing trace with hash -1374156275, now seen corresponding path program 4 times
[2022-03-04 01:06:13,476 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-04 01:06:13,476 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977577156]
[2022-03-04 01:06:13,477 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-04 01:06:13,477 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-04 01:06:13,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-04 01:06:13,879 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 168 proven. 88 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-03-04 01:06:13,880 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-04 01:06:13,880 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977577156]
[2022-03-04 01:06:13,880 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977577156] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-04 01:06:13,880 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177838035]
[2022-03-04 01:06:13,880 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-03-04 01:06:13,880 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-04 01:06:13,880 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-04 01:06:13,881 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)
[2022-03-04 01:06:13,882 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-03-04 01:06:13,912 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-03-04 01:06:13,912 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-04 01:06:13,914 WARN  L261         TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 81 conjunts are in the unsatisfiable core
[2022-03-04 01:06:13,915 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-04 01:06:14,798 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-04 01:06:14,799 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-04 01:06:15,578 INFO  L134       CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-03-04 01:06:15,578 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [177838035] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-04 01:06:15,578 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-04 01:06:15,578 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 26, 23] total 65
[2022-03-04 01:06:15,579 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689241944]
[2022-03-04 01:06:15,579 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-04 01:06:15,579 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 66 states
[2022-03-04 01:06:15,579 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-04 01:06:15,580 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants.
[2022-03-04 01:06:15,581 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=887, Invalid=3403, Unknown=0, NotChecked=0, Total=4290
[2022-03-04 01:06:15,581 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:06:15,582 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-04 01:06:15,582 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)
[2022-03-04 01:06:15,582 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:06:15,582 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. 
[2022-03-04 01:06:15,582 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. 
[2022-03-04 01:06:15,582 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:06:22,081 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 1272 states.
[2022-03-04 01:06:22,081 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:06:22,081 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. 
[2022-03-04 01:06:22,082 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. 
[2022-03-04 01:06:22,082 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. 
[2022-03-04 01:06:22,109 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-03-04 01:06:22,295 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
[2022-03-04 01:06:22,295 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-04 01:06:22,296 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-04 01:06:22,296 INFO  L85        PathProgramCache]: Analyzing trace with hash 1104101887, now seen corresponding path program 5 times
[2022-03-04 01:06:22,296 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-04 01:06:22,296 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92504195]
[2022-03-04 01:06:22,296 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-04 01:06:22,296 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-04 01:06:22,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-04 01:06:23,663 INFO  L134       CoverageAnalysis]: Checked inductivity of 1025 backedges. 19 proven. 994 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2022-03-04 01:06:23,663 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-04 01:06:23,663 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92504195]
[2022-03-04 01:06:23,664 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92504195] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-04 01:06:23,664 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903170647]
[2022-03-04 01:06:23,664 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-03-04 01:06:23,664 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-04 01:06:23,664 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-04 01:06:23,665 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)
[2022-03-04 01:06:23,666 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-03-04 01:06:23,735 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s)
[2022-03-04 01:06:23,735 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-04 01:06:23,738 WARN  L261         TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 189 conjunts are in the unsatisfiable core
[2022-03-04 01:06:23,740 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-04 01:06:26,581 INFO  L134       CoverageAnalysis]: Checked inductivity of 1025 backedges. 0 proven. 1025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-04 01:06:26,582 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-04 01:06:29,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 1025 backedges. 0 proven. 1009 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2022-03-04 01:06:29,654 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903170647] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-04 01:06:29,654 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-04 01:06:29,654 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 53, 34] total 120
[2022-03-04 01:06:29,655 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383110255]
[2022-03-04 01:06:29,655 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-04 01:06:29,656 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 121 states
[2022-03-04 01:06:29,656 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-04 01:06:29,657 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants.
[2022-03-04 01:06:29,660 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=2594, Invalid=11926, Unknown=0, NotChecked=0, Total=14520
[2022-03-04 01:06:29,660 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:06:29,660 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-04 01:06:29,661 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)
[2022-03-04 01:06:29,661 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:06:29,661 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. 
[2022-03-04 01:06:29,661 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. 
[2022-03-04 01:06:29,662 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 140 states. 
[2022-03-04 01:06:29,662 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:06:55,934 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 2685 transitions and produced 1553 states.
[2022-03-04 01:06:55,934 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:06:55,934 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. 
[2022-03-04 01:06:55,934 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. 
[2022-03-04 01:06:55,934 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. 
[2022-03-04 01:06:55,935 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 342 states. 
[2022-03-04 01:06:55,965 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2022-03-04 01:06:56,150 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
[2022-03-04 01:06:56,151 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-04 01:06:56,152 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-04 01:06:56,152 INFO  L85        PathProgramCache]: Analyzing trace with hash 1917777315, now seen corresponding path program 6 times
[2022-03-04 01:06:56,152 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-04 01:06:56,152 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192243410]
[2022-03-04 01:06:56,152 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-04 01:06:56,152 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-04 01:06:56,310 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-04 01:07:00,089 INFO  L134       CoverageAnalysis]: Checked inductivity of 4405 backedges. 102 proven. 4295 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2022-03-04 01:07:00,090 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-04 01:07:00,090 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192243410]
[2022-03-04 01:07:00,090 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192243410] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-04 01:07:00,090 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978176159]
[2022-03-04 01:07:00,090 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-03-04 01:07:00,090 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-04 01:07:00,090 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-04 01:07:00,092 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)
[2022-03-04 01:07:00,093 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-03-04 01:07:00,279 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 48 check-sat command(s)
[2022-03-04 01:07:00,279 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-04 01:07:00,285 WARN  L261         TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 373 conjunts are in the unsatisfiable core
[2022-03-04 01:07:00,290 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-04 01:07:08,529 INFO  L134       CoverageAnalysis]: Checked inductivity of 4405 backedges. 0 proven. 4405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-04 01:07:08,529 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-04 01:07:15,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 4405 backedges. 0 proven. 4375 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2022-03-04 01:07:15,498 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [978176159] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-04 01:07:15,498 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-04 01:07:15,498 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 99, 66] total 248
[2022-03-04 01:07:15,499 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106214121]
[2022-03-04 01:07:15,500 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-04 01:07:15,500 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 249 states
[2022-03-04 01:07:15,501 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-04 01:07:15,503 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 249 interpolants.
[2022-03-04 01:07:15,511 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12018, Invalid=49734, Unknown=0, NotChecked=0, Total=61752
[2022-03-04 01:07:15,511 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:07:15,511 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-04 01:07:15,512 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)
[2022-03-04 01:07:15,512 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:07:15,512 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. 
[2022-03-04 01:07:15,514 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. 
[2022-03-04 01:07:15,514 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 140 states. 
[2022-03-04 01:07:15,514 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 342 states. 
[2022-03-04 01:07:15,514 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:07:53,508 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1971 transitions and produced 1267 states.
[2022-03-04 01:07:53,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:07:53,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. 
[2022-03-04 01:07:53,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. 
[2022-03-04 01:07:53,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. 
[2022-03-04 01:07:53,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 342 states. 
[2022-03-04 01:07:53,517 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 465 states. 
[2022-03-04 01:07:53,535 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2022-03-04 01:07:53,719 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
[2022-03-04 01:07:53,719 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2022-03-04 01:07:53,720 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-04 01:07:53,720 INFO  L85        PathProgramCache]: Analyzing trace with hash -1884969193, now seen corresponding path program 7 times
[2022-03-04 01:07:53,720 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-04 01:07:53,720 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444591812]
[2022-03-04 01:07:53,720 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-04 01:07:53,720 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-04 01:07:54,001 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-04 01:07:58,392 INFO  L134       CoverageAnalysis]: Checked inductivity of 14381 backedges. 12885 proven. 1396 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2022-03-04 01:07:58,393 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-04 01:07:58,393 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444591812]
[2022-03-04 01:07:58,393 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444591812] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-04 01:07:58,393 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119224063]
[2022-03-04 01:07:58,393 INFO  L93    rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-03-04 01:07:58,393 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-04 01:07:58,393 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-04 01:07:58,394 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)
[2022-03-04 01:07:58,395 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-03-04 01:07:58,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-04 01:07:58,546 WARN  L261         TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 605 conjunts are in the unsatisfiable core
[2022-03-04 01:07:58,552 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-04 01:08:15,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 14381 backedges. 0 proven. 14381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-04 01:08:15,449 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-04 01:08:25,260 INFO  L134       CoverageAnalysis]: Checked inductivity of 14381 backedges. 0 proven. 14351 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2022-03-04 01:08:25,260 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119224063] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-04 01:08:25,260 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-04 01:08:25,260 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 157, 124] total 378
[2022-03-04 01:08:25,260 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941047622]
[2022-03-04 01:08:25,261 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-04 01:08:25,261 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 379 states
[2022-03-04 01:08:25,261 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-04 01:08:25,267 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 379 interpolants.
[2022-03-04 01:08:25,273 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47844, Invalid=95418, Unknown=0, NotChecked=0, Total=143262
[2022-03-04 01:08:25,273 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-04 01:08:25,273 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-04 01:08:25,274 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)
[2022-03-04 01:08:25,274 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. 
[2022-03-04 01:08:25,274 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. 
[2022-03-04 01:08:25,274 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. 
[2022-03-04 01:08:25,274 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 140 states. 
[2022-03-04 01:08:25,274 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 342 states. 
[2022-03-04 01:08:25,274 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 465 states. 
[2022-03-04 01:08:25,274 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.