/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/difference-det.wvr.bpl


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


This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19
[2022-03-16 06:25:25,134 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-03-16 06:25:25,213 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-03-16 06:25:25,214 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
[2022-03-16 06:25:25,240 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-03-16 06:25:25,240 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-03-16 06:25:25,240 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-03-16 06:25:25,240 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-03-16 06:25:25,241 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-03-16 06:25:25,241 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-03-16 06:25:25,242 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-03-16 06:25:25,242 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-03-16 06:25:25,242 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-03-16 06:25:25,242 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-03-16 06:25:25,242 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-03-16 06:25:25,243 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-03-16 06:25:25,243 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-03-16 06:25:25,243 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-03-16 06:25:25,243 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-03-16 06:25:25,243 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-03-16 06:25:25,243 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-03-16 06:25:25,243 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-03-16 06:25:25,243 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-03-16 06:25:25,243 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-03-16 06:25:25,244 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-03-16 06:25:25,244 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-03-16 06:25:25,244 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-03-16 06:25:25,244 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-03-16 06:25:25,245 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-03-16 06:25:25,245 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-16 06:25:25,245 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-03-16 06:25:25,245 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-03-16 06:25:25,245 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-03-16 06:25:25,245 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-03-16 06:25:25,245 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-03-16 06:25:25,246 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-03-16 06:25:25,246 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-03-16 06:25:25,246 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-03-16 06:25:25,246 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-03-16 06:25:25,246 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS
[2022-03-16 06:25:25,246 INFO  L138        SettingsManager]:  * MCR: Overapproximate write-read-write conflicts=false
[2022-03-16 06:25:25,246 INFO  L138        SettingsManager]:  * MCR: Optimize fork and join=false
[2022-03-16 06:25:25,246 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-03-16 06:25:25,461 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-03-16 06:25:25,491 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-03-16 06:25:25,493 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-03-16 06:25:25,494 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-03-16 06:25:25,495 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-03-16 06:25:25,496 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/difference-det.wvr.bpl
[2022-03-16 06:25:25,496 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/difference-det.wvr.bpl'
[2022-03-16 06:25:25,517 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-03-16 06:25:25,519 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-03-16 06:25:25,520 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-03-16 06:25:25,520 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-03-16 06:25:25,520 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-03-16 06:25:25,529 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:25:25" (1/1) ...
[2022-03-16 06:25:25,536 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:25:25" (1/1) ...
[2022-03-16 06:25:25,541 INFO  L137                Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-03-16 06:25:25,543 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-03-16 06:25:25,545 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-03-16 06:25:25,545 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-03-16 06:25:25,545 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-03-16 06:25:25,550 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:25:25" (1/1) ...
[2022-03-16 06:25:25,550 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:25:25" (1/1) ...
[2022-03-16 06:25:25,552 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:25:25" (1/1) ...
[2022-03-16 06:25:25,552 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:25:25" (1/1) ...
[2022-03-16 06:25:25,556 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:25:25" (1/1) ...
[2022-03-16 06:25:25,559 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:25:25" (1/1) ...
[2022-03-16 06:25:25,560 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:25:25" (1/1) ...
[2022-03-16 06:25:25,564 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-03-16 06:25:25,565 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-03-16 06:25:25,565 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-03-16 06:25:25,565 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-03-16 06:25:25,566 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:25:25" (1/1) ...
[2022-03-16 06:25:25,571 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-16 06:25:25,585 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 06:25:25,601 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)
[2022-03-16 06:25:25,624 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
[2022-03-16 06:25:25,651 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2022-03-16 06:25:25,651 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-03-16 06:25:25,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-03-16 06:25:25,652 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2022-03-16 06:25:25,652 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-03-16 06:25:25,652 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-03-16 06:25:25,652 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-03-16 06:25:25,653 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-03-16 06:25:25,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-03-16 06:25:25,659 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration
[2022-03-16 06:25:25,660 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2022-03-16 06:25:25,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2022-03-16 06:25:25,667 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration
[2022-03-16 06:25:25,669 INFO  L130     BoogieDeclarations]: Found specification of procedure thread4
[2022-03-16 06:25:25,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread4
[2022-03-16 06:25:25,671 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-03-16 06:25:25,713 INFO  L234             CfgBuilder]: Building ICFG
[2022-03-16 06:25:25,714 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-03-16 06:25:25,806 INFO  L275             CfgBuilder]: Performing block encoding
[2022-03-16 06:25:25,821 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-03-16 06:25:25,821 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-03-16 06:25:25,823 INFO  L202        PluginConnector]: Adding new model difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 06:25:25 BoogieIcfgContainer
[2022-03-16 06:25:25,823 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-03-16 06:25:25,824 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-03-16 06:25:25,824 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-03-16 06:25:25,833 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-03-16 06:25:25,833 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:25:25" (1/2) ...
[2022-03-16 06:25:25,848 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e617a6 and model type difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:25:25, skipping insertion in model container
[2022-03-16 06:25:25,848 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "difference-det.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 06:25:25" (2/2) ...
[2022-03-16 06:25:25,849 INFO  L111   eAbstractionObserver]: Analyzing ICFG difference-det.wvr.bpl
[2022-03-16 06:25:25,853 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-03-16 06:25:25,853 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-03-16 06:25:25,853 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-03-16 06:25:25,853 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-03-16 06:25:25,909 INFO  L148    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2022-03-16 06:25:25,997 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-03-16 06:25:25,998 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 06:25:26,000 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)
[2022-03-16 06:25:26,001 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
[2022-03-16 06:25:26,029 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-03-16 06:25:26,041 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
[2022-03-16 06:25:26,041 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2022-03-16 06:25:27,721 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 12681 transitions and produced 3565 states.
[2022-03-16 06:25:27,723 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-16 06:25:27,727 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 06:25:27,727 INFO  L85        PathProgramCache]: Analyzing trace with hash 1051558199, now seen corresponding path program 1 times
[2022-03-16 06:25:27,734 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 06:25:27,735 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052792344]
[2022-03-16 06:25:27,735 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 06:25:27,735 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 06:25:27,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 06:25:28,363 INFO  L134       CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2022-03-16 06:25:28,379 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 06:25:28,380 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052792344]
[2022-03-16 06:25:28,380 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052792344] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-16 06:25:28,380 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093810351]
[2022-03-16 06:25:28,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 06:25:28,381 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-16 06:25:28,381 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 06:25:28,386 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)
[2022-03-16 06:25:28,412 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-03-16 06:25:28,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 06:25:28,467 INFO  L263         TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 57 conjunts are in the unsatisfiable core
[2022-03-16 06:25:28,473 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-16 06:25:29,158 INFO  L134       CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2022-03-16 06:25:29,159 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-16 06:25:29,451 INFO  L134       CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2022-03-16 06:25:29,452 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093810351] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-16 06:25:29,452 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-16 06:25:29,452 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 11] total 22
[2022-03-16 06:25:29,454 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100209243]
[2022-03-16 06:25:29,454 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-16 06:25:29,459 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2022-03-16 06:25:29,459 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 06:25:29,489 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2022-03-16 06:25:29,491 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462
[2022-03-16 06:25:29,492 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:25:29,493 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 06:25:29,495 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 22 states have (on average 5.363636363636363) internal successors, (118), 22 states have internal predecessors, (118), 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)
[2022-03-16 06:25:29,495 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:25:29,720 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 448 transitions and produced 429 states.
[2022-03-16 06:25:29,720 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:25:29,754 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-03-16 06:25:29,955 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
[2022-03-16 06:25:29,955 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-16 06:25:29,956 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 06:25:29,956 INFO  L85        PathProgramCache]: Analyzing trace with hash -617996737, now seen corresponding path program 2 times
[2022-03-16 06:25:29,956 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 06:25:29,956 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552096100]
[2022-03-16 06:25:29,956 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 06:25:29,956 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 06:25:29,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 06:25:30,392 INFO  L134       CoverageAnalysis]: Checked inductivity of 258 backedges. 142 proven. 108 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2022-03-16 06:25:30,393 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 06:25:30,393 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552096100]
[2022-03-16 06:25:30,393 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552096100] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-16 06:25:30,393 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709866574]
[2022-03-16 06:25:30,393 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-03-16 06:25:30,393 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-16 06:25:30,394 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 06:25:30,395 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)
[2022-03-16 06:25:30,396 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-03-16 06:25:30,447 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-03-16 06:25:30,447 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-16 06:25:30,449 INFO  L263         TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 24 conjunts are in the unsatisfiable core
[2022-03-16 06:25:30,452 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-16 06:25:31,295 INFO  L134       CoverageAnalysis]: Checked inductivity of 258 backedges. 142 proven. 108 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2022-03-16 06:25:31,296 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-16 06:25:31,828 INFO  L134       CoverageAnalysis]: Checked inductivity of 258 backedges. 180 proven. 70 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2022-03-16 06:25:31,828 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [709866574] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-16 06:25:31,828 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-16 06:25:31,828 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24, 24] total 64
[2022-03-16 06:25:31,828 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302393314]
[2022-03-16 06:25:31,829 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-16 06:25:31,829 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 65 states
[2022-03-16 06:25:31,829 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 06:25:31,830 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants.
[2022-03-16 06:25:31,834 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=925, Invalid=3235, Unknown=0, NotChecked=0, Total=4160
[2022-03-16 06:25:31,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:25:31,835 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 06:25:31,836 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 65 states, 65 states have (on average 3.246153846153846) internal successors, (211), 64 states have internal predecessors, (211), 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)
[2022-03-16 06:25:31,836 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:25:31,836 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:25:34,736 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 19159 transitions and produced 5278 states.
[2022-03-16 06:25:34,736 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:25:34,736 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. 
[2022-03-16 06:25:34,756 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-03-16 06:25:34,950 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
[2022-03-16 06:25:34,951 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-16 06:25:34,951 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 06:25:34,952 INFO  L85        PathProgramCache]: Analyzing trace with hash 306123931, now seen corresponding path program 3 times
[2022-03-16 06:25:34,952 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 06:25:34,952 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718697638]
[2022-03-16 06:25:34,952 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 06:25:34,952 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 06:25:35,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 06:25:35,892 INFO  L134       CoverageAnalysis]: Checked inductivity of 534 backedges. 340 proven. 194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 06:25:35,893 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 06:25:35,893 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718697638]
[2022-03-16 06:25:35,893 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718697638] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-16 06:25:35,893 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022472613]
[2022-03-16 06:25:35,893 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-03-16 06:25:35,893 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-16 06:25:35,894 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 06:25:35,895 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)
[2022-03-16 06:25:35,931 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-03-16 06:25:35,951 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s)
[2022-03-16 06:25:35,951 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-16 06:25:35,952 INFO  L263         TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 10 conjunts are in the unsatisfiable core
[2022-03-16 06:25:35,954 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-16 06:25:36,577 INFO  L134       CoverageAnalysis]: Checked inductivity of 534 backedges. 209 proven. 4 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked.
[2022-03-16 06:25:36,578 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-16 06:25:37,064 INFO  L134       CoverageAnalysis]: Checked inductivity of 534 backedges. 209 proven. 4 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked.
[2022-03-16 06:25:37,064 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022472613] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-16 06:25:37,064 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-16 06:25:37,064 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 11, 11] total 65
[2022-03-16 06:25:37,065 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587219653]
[2022-03-16 06:25:37,065 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-16 06:25:37,065 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 65 states
[2022-03-16 06:25:37,065 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 06:25:37,066 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants.
[2022-03-16 06:25:37,067 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=3630, Unknown=0, NotChecked=0, Total=4160
[2022-03-16 06:25:37,068 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:25:37,068 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 06:25:37,068 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 65 states, 65 states have (on average 2.769230769230769) internal successors, (180), 65 states have internal predecessors, (180), 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)
[2022-03-16 06:25:37,068 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:25:37,068 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. 
[2022-03-16 06:25:37,068 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:25:42,681 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 50903 transitions and produced 12679 states.
[2022-03-16 06:25:42,681 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:25:42,681 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. 
[2022-03-16 06:25:42,682 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. 
[2022-03-16 06:25:42,700 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2022-03-16 06:25:42,887 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
[2022-03-16 06:25:42,887 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-16 06:25:42,888 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 06:25:42,888 INFO  L85        PathProgramCache]: Analyzing trace with hash 1239758501, now seen corresponding path program 4 times
[2022-03-16 06:25:42,888 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 06:25:42,888 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791303364]
[2022-03-16 06:25:42,888 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 06:25:42,888 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 06:25:42,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 06:25:43,083 INFO  L134       CoverageAnalysis]: Checked inductivity of 863 backedges. 289 proven. 222 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked.
[2022-03-16 06:25:43,083 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 06:25:43,083 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791303364]
[2022-03-16 06:25:43,083 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791303364] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-16 06:25:43,083 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126365018]
[2022-03-16 06:25:43,084 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-03-16 06:25:43,084 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-16 06:25:43,084 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 06:25:43,100 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)
[2022-03-16 06:25:43,101 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-03-16 06:25:43,156 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-03-16 06:25:43,157 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-16 06:25:43,158 INFO  L263         TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 44 conjunts are in the unsatisfiable core
[2022-03-16 06:25:43,165 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-16 06:25:44,383 INFO  L134       CoverageAnalysis]: Checked inductivity of 863 backedges. 427 proven. 428 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2022-03-16 06:25:44,383 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-16 06:25:45,470 INFO  L134       CoverageAnalysis]: Checked inductivity of 863 backedges. 488 proven. 367 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2022-03-16 06:25:45,471 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [126365018] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-16 06:25:45,471 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-16 06:25:45,471 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 44, 44] total 103
[2022-03-16 06:25:45,471 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588576309]
[2022-03-16 06:25:45,471 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-16 06:25:45,472 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 103 states
[2022-03-16 06:25:45,472 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 06:25:45,473 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants.
[2022-03-16 06:25:45,475 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1676, Invalid=8830, Unknown=0, NotChecked=0, Total=10506
[2022-03-16 06:25:45,475 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:25:45,475 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 06:25:45,476 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 103 states, 103 states have (on average 2.8737864077669903) internal successors, (296), 103 states have internal predecessors, (296), 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)
[2022-03-16 06:25:45,476 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:25:45,476 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. 
[2022-03-16 06:25:45,476 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. 
[2022-03-16 06:25:45,476 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:25:52,988 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 691 transitions and produced 610 states.
[2022-03-16 06:25:52,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:25:52,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. 
[2022-03-16 06:25:52,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. 
[2022-03-16 06:25:52,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. 
[2022-03-16 06:25:53,007 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-03-16 06:25:53,203 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
[2022-03-16 06:25:53,203 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-16 06:25:53,204 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 06:25:53,204 INFO  L85        PathProgramCache]: Analyzing trace with hash -10267129, now seen corresponding path program 5 times
[2022-03-16 06:25:53,204 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 06:25:53,204 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378786318]
[2022-03-16 06:25:53,204 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 06:25:53,204 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 06:25:53,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 06:25:53,865 INFO  L134       CoverageAnalysis]: Checked inductivity of 954 backedges. 0 proven. 954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 06:25:53,865 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 06:25:53,865 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378786318]
[2022-03-16 06:25:53,865 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378786318] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-16 06:25:53,865 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60036525]
[2022-03-16 06:25:53,866 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-03-16 06:25:53,866 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-16 06:25:53,866 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 06:25:53,880 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)
[2022-03-16 06:25:53,882 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-03-16 06:25:53,944 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s)
[2022-03-16 06:25:53,944 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-16 06:25:53,946 INFO  L263         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 113 conjunts are in the unsatisfiable core
[2022-03-16 06:25:53,948 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-16 06:25:56,134 INFO  L134       CoverageAnalysis]: Checked inductivity of 954 backedges. 0 proven. 954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 06:25:56,134 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-16 06:25:56,607 INFO  L134       CoverageAnalysis]: Checked inductivity of 954 backedges. 0 proven. 954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 06:25:56,608 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [60036525] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-16 06:25:56,608 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-16 06:25:56,608 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 46, 31] total 74
[2022-03-16 06:25:56,608 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344063475]
[2022-03-16 06:25:56,608 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-16 06:25:56,609 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 74 states
[2022-03-16 06:25:56,609 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 06:25:56,609 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants.
[2022-03-16 06:25:56,610 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=5213, Unknown=0, NotChecked=0, Total=5402
[2022-03-16 06:25:56,611 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:25:56,611 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 06:25:56,611 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 74 states, 74 states have (on average 3.5405405405405403) internal successors, (262), 74 states have internal predecessors, (262), 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)
[2022-03-16 06:25:56,611 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:25:56,611 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. 
[2022-03-16 06:25:56,611 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. 
[2022-03-16 06:25:56,611 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. 
[2022-03-16 06:25:56,611 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:26:20,768 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 139930 transitions and produced 33245 states.
[2022-03-16 06:26:20,768 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:26:20,769 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. 
[2022-03-16 06:26:20,769 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. 
[2022-03-16 06:26:20,772 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 402 states. 
[2022-03-16 06:26:20,777 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2022-03-16 06:26:20,799 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-03-16 06:26:20,978 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
[2022-03-16 06:26:20,979 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-16 06:26:20,979 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 06:26:20,979 INFO  L85        PathProgramCache]: Analyzing trace with hash -969746931, now seen corresponding path program 6 times
[2022-03-16 06:26:20,979 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 06:26:20,979 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400923576]
[2022-03-16 06:26:20,979 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 06:26:20,979 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 06:26:21,044 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 06:26:23,298 INFO  L134       CoverageAnalysis]: Checked inductivity of 1697 backedges. 1120 proven. 577 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 06:26:23,298 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 06:26:23,298 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400923576]
[2022-03-16 06:26:23,298 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400923576] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-16 06:26:23,298 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595424251]
[2022-03-16 06:26:23,298 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-03-16 06:26:23,298 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-16 06:26:23,298 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 06:26:23,299 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)
[2022-03-16 06:26:23,300 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-03-16 06:26:23,375 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 33 check-sat command(s)
[2022-03-16 06:26:23,376 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-16 06:26:23,377 INFO  L263         TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 17 conjunts are in the unsatisfiable core
[2022-03-16 06:26:23,380 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-16 06:26:24,774 INFO  L134       CoverageAnalysis]: Checked inductivity of 1697 backedges. 696 proven. 62 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked.
[2022-03-16 06:26:24,774 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-16 06:26:25,850 INFO  L134       CoverageAnalysis]: Checked inductivity of 1697 backedges. 722 proven. 36 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked.
[2022-03-16 06:26:25,850 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595424251] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-16 06:26:25,850 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-16 06:26:25,850 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 18, 18] total 111
[2022-03-16 06:26:25,851 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997957985]
[2022-03-16 06:26:25,851 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-16 06:26:25,851 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 111 states
[2022-03-16 06:26:25,851 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 06:26:25,852 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants.
[2022-03-16 06:26:25,854 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1631, Invalid=10579, Unknown=0, NotChecked=0, Total=12210
[2022-03-16 06:26:25,854 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:26:25,854 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 06:26:25,855 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 111 states, 111 states have (on average 2.5585585585585586) internal successors, (284), 111 states have internal predecessors, (284), 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)
[2022-03-16 06:26:25,855 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:26:25,855 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. 
[2022-03-16 06:26:25,855 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. 
[2022-03-16 06:26:25,855 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 402 states. 
[2022-03-16 06:26:25,855 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. 
[2022-03-16 06:26:25,855 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:26:41,530 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1347 transitions and produced 1144 states.
[2022-03-16 06:26:41,530 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:26:41,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. 
[2022-03-16 06:26:41,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. 
[2022-03-16 06:26:41,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 402 states. 
[2022-03-16 06:26:41,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2022-03-16 06:26:41,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. 
[2022-03-16 06:26:41,551 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2022-03-16 06:26:41,749 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
[2022-03-16 06:26:41,749 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-16 06:26:41,750 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 06:26:41,750 INFO  L85        PathProgramCache]: Analyzing trace with hash -237916261, now seen corresponding path program 7 times
[2022-03-16 06:26:41,750 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 06:26:41,750 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108026214]
[2022-03-16 06:26:41,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 06:26:41,750 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 06:26:41,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 06:26:45,155 INFO  L134       CoverageAnalysis]: Checked inductivity of 4646 backedges. 2869 proven. 1777 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 06:26:45,155 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 06:26:45,156 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108026214]
[2022-03-16 06:26:45,156 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108026214] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-16 06:26:45,156 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673392789]
[2022-03-16 06:26:45,156 INFO  L93    rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-03-16 06:26:45,156 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-16 06:26:45,156 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 06:26:45,162 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)
[2022-03-16 06:26:45,163 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-03-16 06:26:45,257 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 06:26:45,261 INFO  L263         TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 85 conjunts are in the unsatisfiable core
[2022-03-16 06:26:45,265 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-16 06:26:49,700 INFO  L134       CoverageAnalysis]: Checked inductivity of 4646 backedges. 2734 proven. 1600 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2022-03-16 06:26:49,701 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-16 06:26:55,145 INFO  L134       CoverageAnalysis]: Checked inductivity of 4646 backedges. 2734 proven. 1600 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2022-03-16 06:26:55,145 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673392789] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-16 06:26:55,145 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-16 06:26:55,146 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 85, 85] total 284
[2022-03-16 06:26:55,146 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135327596]
[2022-03-16 06:26:55,146 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-16 06:26:55,146 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 285 states
[2022-03-16 06:26:55,146 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 06:26:55,149 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 285 interpolants.
[2022-03-16 06:26:55,167 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11618, Invalid=69322, Unknown=0, NotChecked=0, Total=80940
[2022-03-16 06:26:55,167 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 06:26:55,167 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 06:26:55,168 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 285 states, 285 states have (on average 2.1228070175438596) internal successors, (605), 284 states have internal predecessors, (605), 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)
[2022-03-16 06:26:55,168 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2022-03-16 06:26:55,168 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. 
[2022-03-16 06:26:55,168 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. 
[2022-03-16 06:26:55,168 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 402 states. 
[2022-03-16 06:26:55,168 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. 
[2022-03-16 06:26:55,168 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. 
[2022-03-16 06:26:55,168 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.