/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-more/buffer-series.wvr.bpl


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


This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11
[2022-03-02 00:01:10,516 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-03-02 00:01:10,614 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
[2022-03-02 00:01:10,646 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-03-02 00:01:10,646 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-03-02 00:01:10,647 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-03-02 00:01:10,647 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-03-02 00:01:10,647 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-03-02 00:01:10,648 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-03-02 00:01:10,648 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-03-02 00:01:10,648 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-03-02 00:01:10,649 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-03-02 00:01:10,649 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-03-02 00:01:10,649 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-03-02 00:01:10,650 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-03-02 00:01:10,650 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-03-02 00:01:10,650 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-03-02 00:01:10,650 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-03-02 00:01:10,650 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-03-02 00:01:10,650 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-03-02 00:01:10,650 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-03-02 00:01:10,650 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-03-02 00:01:10,650 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-03-02 00:01:10,651 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-03-02 00:01:10,651 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-03-02 00:01:10,651 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-03-02 00:01:10,651 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-03-02 00:01:10,652 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-03-02 00:01:10,652 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-02 00:01:10,652 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-03-02 00:01:10,652 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-03-02 00:01:10,653 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-03-02 00:01:10,653 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-03-02 00:01:10,653 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-03-02 00:01:10,653 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-03-02 00:01:10,653 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-03-02 00:01:10,653 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-03-02 00:01:10,654 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-03-02 00:01:10,654 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS
[2022-03-02 00:01:10,654 INFO  L138        SettingsManager]:  * MCR: Overapproximate write-read-write conflicts=false
[2022-03-02 00:01:10,654 INFO  L138        SettingsManager]:  * MCR: Optimize fork and join=false
[2022-03-02 00:01:10,654 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-03-02 00:01:10,870 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-03-02 00:01:10,895 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-03-02 00:01:10,898 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-03-02 00:01:10,899 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-03-02 00:01:10,901 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-03-02 00:01:10,902 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series.wvr.bpl
[2022-03-02 00:01:10,902 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series.wvr.bpl'
[2022-03-02 00:01:10,932 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-03-02 00:01:10,933 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-03-02 00:01:10,935 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-03-02 00:01:10,935 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-03-02 00:01:10,936 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-03-02 00:01:10,944 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:01:10" (1/1) ...
[2022-03-02 00:01:10,950 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:01:10" (1/1) ...
[2022-03-02 00:01:10,955 INFO  L137                Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-03-02 00:01:10,956 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-03-02 00:01:10,957 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-03-02 00:01:10,957 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-03-02 00:01:10,957 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-03-02 00:01:10,964 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:01:10" (1/1) ...
[2022-03-02 00:01:10,964 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:01:10" (1/1) ...
[2022-03-02 00:01:10,965 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:01:10" (1/1) ...
[2022-03-02 00:01:10,965 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:01:10" (1/1) ...
[2022-03-02 00:01:10,968 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:01:10" (1/1) ...
[2022-03-02 00:01:10,971 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:01:10" (1/1) ...
[2022-03-02 00:01:10,972 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:01:10" (1/1) ...
[2022-03-02 00:01:10,973 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-03-02 00:01:10,973 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-03-02 00:01:10,974 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-03-02 00:01:10,974 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-03-02 00:01:10,975 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:01:10" (1/1) ...
[2022-03-02 00:01:10,983 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-02 00:01:10,989 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-02 00:01:11,001 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)
[2022-03-02 00:01:11,008 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
[2022-03-02 00:01:11,041 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2022-03-02 00:01:11,041 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-03-02 00:01:11,041 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-03-02 00:01:11,042 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2022-03-02 00:01:11,042 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-03-02 00:01:11,042 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-03-02 00:01:11,042 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-03-02 00:01:11,042 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-03-02 00:01:11,042 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-03-02 00:01:11,042 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration
[2022-03-02 00:01:11,043 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2022-03-02 00:01:11,043 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2022-03-02 00:01:11,043 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration
[2022-03-02 00:01:11,043 INFO  L130     BoogieDeclarations]: Found specification of procedure thread4
[2022-03-02 00:01:11,043 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread4
[2022-03-02 00:01:11,044 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-03-02 00:01:11,091 INFO  L234             CfgBuilder]: Building ICFG
[2022-03-02 00:01:11,094 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-03-02 00:01:11,209 INFO  L275             CfgBuilder]: Performing block encoding
[2022-03-02 00:01:11,226 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-03-02 00:01:11,227 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-03-02 00:01:11,238 INFO  L202        PluginConnector]: Adding new model buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 12:01:11 BoogieIcfgContainer
[2022-03-02 00:01:11,238 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-03-02 00:01:11,240 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-03-02 00:01:11,240 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-03-02 00:01:11,258 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-03-02 00:01:11,259 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:01:10" (1/2) ...
[2022-03-02 00:01:11,259 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7507d3b3 and model type buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 12:01:11, skipping insertion in model container
[2022-03-02 00:01:11,260 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 12:01:11" (2/2) ...
[2022-03-02 00:01:11,261 INFO  L111   eAbstractionObserver]: Analyzing ICFG buffer-series.wvr.bpl
[2022-03-02 00:01:11,265 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-03-02 00:01:11,265 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-03-02 00:01:11,265 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-03-02 00:01:11,265 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-03-02 00:01:11,338 INFO  L148    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2022-03-02 00:01:11,379 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-03-02 00:01:11,379 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-02 00:01:11,381 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)
[2022-03-02 00:01:11,413 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-03-02 00:01:11,424 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
[2022-03-02 00:01:11,439 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
[2022-03-02 00:01:11,440 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2022-03-02 00:01:12,170 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1006 transitions and produced 792 states.
[2022-03-02 00:01:12,172 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-02 00:01:12,177 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-02 00:01:12,178 INFO  L85        PathProgramCache]: Analyzing trace with hash -1395233696, now seen corresponding path program 1 times
[2022-03-02 00:01:12,186 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-02 00:01:12,187 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246623433]
[2022-03-02 00:01:12,187 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-02 00:01:12,187 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-02 00:01:12,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-02 00:01:14,927 INFO  L134       CoverageAnalysis]: Checked inductivity of 2517 backedges. 1114 proven. 1348 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2022-03-02 00:01:14,928 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-02 00:01:14,928 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246623433]
[2022-03-02 00:01:14,928 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246623433] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-02 00:01:14,929 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780669602]
[2022-03-02 00:01:14,929 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-02 00:01:14,929 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-02 00:01:14,929 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-02 00:01:14,932 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)
[2022-03-02 00:01:14,933 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-03-02 00:01:15,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-02 00:01:15,082 INFO  L263         TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 43 conjunts are in the unsatisfiable core
[2022-03-02 00:01:15,094 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-02 00:01:17,888 INFO  L134       CoverageAnalysis]: Checked inductivity of 2517 backedges. 1177 proven. 1085 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked.
[2022-03-02 00:01:17,888 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-02 00:01:19,224 INFO  L134       CoverageAnalysis]: Checked inductivity of 2517 backedges. 1999 proven. 216 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked.
[2022-03-02 00:01:19,225 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [780669602] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-02 00:01:19,225 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-02 00:01:19,225 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 42, 18] total 125
[2022-03-02 00:01:19,227 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094546624]
[2022-03-02 00:01:19,228 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-02 00:01:19,234 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 126 states
[2022-03-02 00:01:19,234 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-02 00:01:19,252 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants.
[2022-03-02 00:01:19,259 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1679, Invalid=14071, Unknown=0, NotChecked=0, Total=15750
[2022-03-02 00:01:19,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-02 00:01:19,261 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-02 00:01:19,264 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 126 states, 126 states have (on average 3.4682539682539684) internal successors, (437), 125 states have internal predecessors, (437), 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)
[2022-03-02 00:01:19,264 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-02 00:01:32,067 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1827 transitions and produced 1419 states.
[2022-03-02 00:01:32,068 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. 
[2022-03-02 00:01:32,097 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-03-02 00:01:32,297 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
[2022-03-02 00:01:32,297 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-02 00:01:32,298 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-02 00:01:32,298 INFO  L85        PathProgramCache]: Analyzing trace with hash 877508605, now seen corresponding path program 2 times
[2022-03-02 00:01:32,298 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-02 00:01:32,298 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153962681]
[2022-03-02 00:01:32,298 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-02 00:01:32,298 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-02 00:01:32,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-02 00:01:33,593 INFO  L134       CoverageAnalysis]: Checked inductivity of 5865 backedges. 3021 proven. 925 refuted. 0 times theorem prover too weak. 1919 trivial. 0 not checked.
[2022-03-02 00:01:33,593 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-02 00:01:33,593 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153962681]
[2022-03-02 00:01:33,593 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153962681] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-02 00:01:33,594 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199401714]
[2022-03-02 00:01:33,594 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-03-02 00:01:33,594 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-02 00:01:33,594 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-02 00:01:33,600 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)
[2022-03-02 00:01:33,601 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-03-02 00:01:33,767 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-03-02 00:01:33,767 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-02 00:01:33,773 INFO  L263         TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 54 conjunts are in the unsatisfiable core
[2022-03-02 00:01:33,782 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-02 00:01:36,536 INFO  L134       CoverageAnalysis]: Checked inductivity of 5865 backedges. 2673 proven. 925 refuted. 0 times theorem prover too weak. 2267 trivial. 0 not checked.
[2022-03-02 00:01:36,536 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-02 00:01:39,667 INFO  L134       CoverageAnalysis]: Checked inductivity of 5865 backedges. 2673 proven. 925 refuted. 0 times theorem prover too weak. 2267 trivial. 0 not checked.
[2022-03-02 00:01:39,668 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199401714] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-02 00:01:39,668 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-02 00:01:39,668 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 157
[2022-03-02 00:01:39,668 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936352095]
[2022-03-02 00:01:39,669 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-02 00:01:39,670 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 158 states
[2022-03-02 00:01:39,670 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-02 00:01:39,671 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants.
[2022-03-02 00:01:39,680 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3315, Invalid=21491, Unknown=0, NotChecked=0, Total=24806
[2022-03-02 00:01:39,680 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-02 00:01:39,680 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-02 00:01:39,681 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 158 states, 158 states have (on average 2.981012658227848) internal successors, (471), 157 states have internal predecessors, (471), 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)
[2022-03-02 00:01:39,681 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. 
[2022-03-02 00:01:39,681 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-02 00:01:50,002 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 2475 transitions and produced 1919 states.
[2022-03-02 00:01:50,003 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 330 states. 
[2022-03-02 00:01:50,003 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. 
[2022-03-02 00:01:50,021 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2022-03-02 00:01:50,207 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
[2022-03-02 00:01:50,208 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-02 00:01:50,208 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-02 00:01:50,208 INFO  L85        PathProgramCache]: Analyzing trace with hash -386614491, now seen corresponding path program 3 times
[2022-03-02 00:01:50,208 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-02 00:01:50,209 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732458031]
[2022-03-02 00:01:50,209 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-02 00:01:50,209 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-02 00:01:50,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-02 00:01:50,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 14363 backedges. 637 proven. 0 refuted. 0 times theorem prover too weak. 13726 trivial. 0 not checked.
[2022-03-02 00:01:50,380 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-02 00:01:50,381 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732458031]
[2022-03-02 00:01:50,381 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732458031] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-02 00:01:50,384 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-02 00:01:50,388 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-03-02 00:01:50,391 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419503621]
[2022-03-02 00:01:50,391 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-02 00:01:50,391 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-03-02 00:01:50,392 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-02 00:01:50,392 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-03-02 00:01:50,392 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-03-02 00:01:50,392 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-02 00:01:50,392 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-02 00:01:50,393 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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)
[2022-03-02 00:01:50,393 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 330 states. 
[2022-03-02 00:01:50,393 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. 
[2022-03-02 00:01:50,393 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-02 00:01:51,665 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 3278 transitions and produced 2265 states.
[2022-03-02 00:01:51,665 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 334 states. 
[2022-03-02 00:01:51,665 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. 
[2022-03-02 00:01:51,665 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-02 00:01:51,666 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-03-02 00:01:51,666 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-02 00:01:51,666 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-02 00:01:51,667 INFO  L85        PathProgramCache]: Analyzing trace with hash 1283946805, now seen corresponding path program 4 times
[2022-03-02 00:01:51,667 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-02 00:01:51,667 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89238775]
[2022-03-02 00:01:51,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-02 00:01:51,667 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-02 00:01:51,988 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-02 00:02:01,757 INFO  L134       CoverageAnalysis]: Checked inductivity of 15925 backedges. 4682 proven. 10219 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked.
[2022-03-02 00:02:01,757 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-02 00:02:01,757 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89238775]
[2022-03-02 00:02:01,757 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89238775] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-02 00:02:01,757 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670443880]
[2022-03-02 00:02:01,758 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-03-02 00:02:01,758 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-02 00:02:01,758 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-02 00:02:01,759 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)
[2022-03-02 00:02:01,760 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-03-02 00:02:01,956 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-03-02 00:02:01,956 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-02 00:02:01,963 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1315 conjuncts, 89 conjunts are in the unsatisfiable core
[2022-03-02 00:02:01,971 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-02 00:02:10,950 INFO  L134       CoverageAnalysis]: Checked inductivity of 15925 backedges. 7204 proven. 4351 refuted. 0 times theorem prover too weak. 4370 trivial. 0 not checked.
[2022-03-02 00:02:10,951 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-02 00:02:14,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 15925 backedges. 8378 proven. 3050 refuted. 0 times theorem prover too weak. 4497 trivial. 0 not checked.
[2022-03-02 00:02:14,815 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [670443880] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-02 00:02:14,815 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-02 00:02:14,815 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 88, 32] total 310
[2022-03-02 00:02:14,816 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734974721]
[2022-03-02 00:02:14,816 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-02 00:02:14,817 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 311 states
[2022-03-02 00:02:14,817 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-02 00:02:14,818 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 311 interpolants.
[2022-03-02 00:02:14,827 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7924, Invalid=88486, Unknown=0, NotChecked=0, Total=96410
[2022-03-02 00:02:14,828 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-02 00:02:14,828 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-02 00:02:14,829 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 311 states, 311 states have (on average 2.8810289389067525) internal successors, (896), 310 states have internal predecessors, (896), 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)
[2022-03-02 00:02:14,829 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 334 states. 
[2022-03-02 00:02:14,829 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. 
[2022-03-02 00:02:14,829 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-02 00:02:14,829 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-02 00:02:51,794 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 2922 transitions and produced 2232 states.
[2022-03-02 00:02:51,794 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 334 states. 
[2022-03-02 00:02:51,794 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. 
[2022-03-02 00:02:51,794 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-02 00:02:51,794 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 418 states. 
[2022-03-02 00:02:51,814 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2022-03-02 00:02:51,999 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-02 00:02:52,000 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-02 00:02:52,000 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-02 00:02:52,000 INFO  L85        PathProgramCache]: Analyzing trace with hash 1422091902, now seen corresponding path program 5 times
[2022-03-02 00:02:52,001 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-02 00:02:52,001 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468750639]
[2022-03-02 00:02:52,001 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-02 00:02:52,001 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-02 00:02:52,151 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-02 00:03:00,130 INFO  L134       CoverageAnalysis]: Checked inductivity of 14262 backedges. 5635 proven. 5282 refuted. 0 times theorem prover too weak. 3345 trivial. 0 not checked.
[2022-03-02 00:03:00,130 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-02 00:03:00,130 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468750639]
[2022-03-02 00:03:00,131 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468750639] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-02 00:03:00,131 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752964286]
[2022-03-02 00:03:00,131 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-03-02 00:03:00,131 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-02 00:03:00,131 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-02 00:03:00,132 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)
[2022-03-02 00:03:00,146 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-03-02 00:03:00,823 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 80 check-sat command(s)
[2022-03-02 00:03:00,824 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-02 00:03:00,834 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 130 conjunts are in the unsatisfiable core
[2022-03-02 00:03:00,842 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-02 00:03:13,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 14262 backedges. 6365 proven. 6654 refuted. 0 times theorem prover too weak. 1243 trivial. 0 not checked.
[2022-03-02 00:03:13,785 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-02 00:03:23,717 INFO  L134       CoverageAnalysis]: Checked inductivity of 14262 backedges. 6365 proven. 6654 refuted. 0 times theorem prover too weak. 1243 trivial. 0 not checked.
[2022-03-02 00:03:23,717 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [752964286] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-02 00:03:23,717 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-02 00:03:23,718 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [157, 129, 81] total 365
[2022-03-02 00:03:23,718 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998219977]
[2022-03-02 00:03:23,718 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-02 00:03:23,719 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 366 states
[2022-03-02 00:03:23,720 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-02 00:03:23,723 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 366 interpolants.
[2022-03-02 00:03:23,732 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19169, Invalid=114421, Unknown=0, NotChecked=0, Total=133590
[2022-03-02 00:03:23,732 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-02 00:03:23,732 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-02 00:03:23,733 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 366 states, 366 states have (on average 3.1557377049180326) internal successors, (1155), 365 states have internal predecessors, (1155), 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)
[2022-03-02 00:03:23,733 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 334 states. 
[2022-03-02 00:03:23,733 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. 
[2022-03-02 00:03:23,733 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-02 00:03:23,733 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 418 states. 
[2022-03-02 00:03:23,733 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-02 00:04:26,383 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 5843 transitions and produced 3808 states.
[2022-03-02 00:04:26,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 334 states. 
[2022-03-02 00:04:26,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. 
[2022-03-02 00:04:26,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-02 00:04:26,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 732 states. 
[2022-03-02 00:04:26,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. 
[2022-03-02 00:04:26,403 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2022-03-02 00:04:26,584 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-02 00:04:26,585 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] ===
[2022-03-02 00:04:26,585 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-02 00:04:26,585 INFO  L85        PathProgramCache]: Analyzing trace with hash 751577018, now seen corresponding path program 6 times
[2022-03-02 00:04:26,585 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-02 00:04:26,586 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085840224]
[2022-03-02 00:04:26,586 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-02 00:04:26,586 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-02 00:04:27,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-02 00:05:01,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 50974 backedges. 16912 proven. 29225 refuted. 0 times theorem prover too weak. 4837 trivial. 0 not checked.
[2022-03-02 00:05:01,463 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-02 00:05:01,463 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085840224]
[2022-03-02 00:05:01,463 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085840224] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-02 00:05:01,463 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523378668]
[2022-03-02 00:05:01,464 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-03-02 00:05:01,464 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-02 00:05:01,464 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-02 00:05:01,468 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)
[2022-03-02 00:05:01,472 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-03-02 00:05:08,176 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 176 check-sat command(s)
[2022-03-02 00:05:08,176 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-02 00:05:08,203 INFO  L263         TraceCheckSpWp]: Trace formula consists of 2194 conjuncts, 81 conjunts are in the unsatisfiable core
[2022-03-02 00:05:08,215 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-02 00:05:19,838 INFO  L134       CoverageAnalysis]: Checked inductivity of 50974 backedges. 30621 proven. 5020 refuted. 0 times theorem prover too weak. 15333 trivial. 0 not checked.
[2022-03-02 00:05:19,838 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-02 00:05:26,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 50974 backedges. 30621 proven. 5020 refuted. 0 times theorem prover too weak. 15333 trivial. 0 not checked.
[2022-03-02 00:05:26,931 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523378668] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-02 00:05:26,931 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-02 00:05:26,932 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [364, 69, 69] total 490
[2022-03-02 00:05:26,932 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688634181]
[2022-03-02 00:05:26,932 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-02 00:05:26,933 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 491 states
[2022-03-02 00:05:26,933 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-02 00:05:26,938 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 491 interpolants.
[2022-03-02 00:05:26,947 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=38898, Invalid=201692, Unknown=0, NotChecked=0, Total=240590
[2022-03-02 00:05:26,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-02 00:05:26,948 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-02 00:05:26,949 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 491 states, 491 states have (on average 2.409368635437882) internal successors, (1183), 490 states have internal predecessors, (1183), 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)
[2022-03-02 00:05:26,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 334 states. 
[2022-03-02 00:05:26,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. 
[2022-03-02 00:05:26,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-02 00:05:26,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 732 states. 
[2022-03-02 00:05:26,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. 
[2022-03-02 00:05:26,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.