/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk06/safe018_power.oepc.line1115.bpl


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


This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m
[2022-10-20 10:27:02,634 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-10-20 10:27:02,726 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf
[2022-10-20 10:27:02,758 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-10-20 10:27:02,758 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-10-20 10:27:02,758 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-10-20 10:27:02,759 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-10-20 10:27:02,760 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-10-20 10:27:02,760 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-10-20 10:27:02,762 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-10-20 10:27:02,762 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-10-20 10:27:02,762 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-10-20 10:27:02,762 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-10-20 10:27:02,763 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-10-20 10:27:02,763 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-10-20 10:27:02,763 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-10-20 10:27:02,763 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-10-20 10:27:02,763 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-10-20 10:27:02,763 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-10-20 10:27:02,764 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-10-20 10:27:02,764 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-10-20 10:27:02,764 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-10-20 10:27:02,764 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-10-20 10:27:02,764 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-10-20 10:27:02,764 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-10-20 10:27:02,764 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-10-20 10:27:02,764 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-10-20 10:27:02,764 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-10-20 10:27:02,764 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-10-20 10:27:02,765 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-10-20 10:27:02,765 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-10-20 10:27:02,765 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-10-20 10:27:02,765 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-10-20 10:27:02,765 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-10-20 10:27:02,765 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-10-20 10:27:02,765 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-10-20 10:27:02,765 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-10-20 10:27:02,766 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2022-10-20 10:27:02,766 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER
[2022-10-20 10:27:03,043 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-10-20 10:27:03,060 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-10-20 10:27:03,062 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-10-20 10:27:03,062 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-10-20 10:27:03,064 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-10-20 10:27:03,065 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk06/safe018_power.oepc.line1115.bpl
[2022-10-20 10:27:03,065 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk06/safe018_power.oepc.line1115.bpl'
[2022-10-20 10:27:03,113 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-10-20 10:27:03,114 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-10-20 10:27:03,115 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-10-20 10:27:03,115 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-10-20 10:27:03,115 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-10-20 10:27:03,123 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:27:03" (1/1) ...
[2022-10-20 10:27:03,150 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:27:03" (1/1) ...
[2022-10-20 10:27:03,157 INFO  L138                Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-10-20 10:27:03,159 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-10-20 10:27:03,159 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-10-20 10:27:03,160 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-10-20 10:27:03,160 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-10-20 10:27:03,165 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:27:03" (1/1) ...
[2022-10-20 10:27:03,166 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:27:03" (1/1) ...
[2022-10-20 10:27:03,172 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:27:03" (1/1) ...
[2022-10-20 10:27:03,172 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:27:03" (1/1) ...
[2022-10-20 10:27:03,199 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:27:03" (1/1) ...
[2022-10-20 10:27:03,202 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:27:03" (1/1) ...
[2022-10-20 10:27:03,205 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:27:03" (1/1) ...
[2022-10-20 10:27:03,211 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-10-20 10:27:03,212 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-10-20 10:27:03,212 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-10-20 10:27:03,212 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-10-20 10:27:03,215 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:27:03" (1/1) ...
[2022-10-20 10:27:03,220 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-10-20 10:27:03,226 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-20 10:27:03,239 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)
[2022-10-20 10:27:03,257 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
[2022-10-20 10:27:03,281 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2022-10-20 10:27:03,281 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2022-10-20 10:27:03,281 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2022-10-20 10:27:03,281 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2022-10-20 10:27:03,281 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2022-10-20 10:27:03,281 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2022-10-20 10:27:03,281 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-10-20 10:27:03,281 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-10-20 10:27:03,283 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-10-20 10:27:03,428 INFO  L234             CfgBuilder]: Building ICFG
[2022-10-20 10:27:03,429 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-10-20 10:27:03,945 INFO  L275             CfgBuilder]: Performing block encoding
[2022-10-20 10:27:03,956 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-10-20 10:27:03,957 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-10-20 10:27:03,959 INFO  L202        PluginConnector]: Adding new model safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 10:27:03 BoogieIcfgContainer
[2022-10-20 10:27:03,959 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-10-20 10:27:03,961 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-10-20 10:27:03,961 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-10-20 10:27:03,963 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-10-20 10:27:03,963 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 10:27:03" (1/2) ...
[2022-10-20 10:27:03,964 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@379ad6e6 and model type safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 10:27:03, skipping insertion in model container
[2022-10-20 10:27:03,964 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe018_power.oepc.line1115.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 10:27:03" (2/2) ...
[2022-10-20 10:27:03,965 INFO  L112   eAbstractionObserver]: Analyzing ICFG safe018_power.oepc.line1115.bpl
[2022-10-20 10:27:03,970 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-10-20 10:27:03,977 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-10-20 10:27:03,977 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-10-20 10:27:03,977 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-10-20 10:27:04,079 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-10-20 10:27:04,136 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-10-20 10:27:04,136 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-10-20 10:27:04,137 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-20 10:27:04,143 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)
[2022-10-20 10:27:04,144 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
[2022-10-20 10:27:04,166 INFO  L159   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2022-10-20 10:27:04,171 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ========
[2022-10-20 10:27:04,176 INFO  L357      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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@80a328, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-10-20 10:27:04,176 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-10-20 10:27:04,251 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-20 10:27:04,255 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-20 10:27:04,255 INFO  L85        PathProgramCache]: Analyzing trace with hash -865884725, now seen corresponding path program 1 times
[2022-10-20 10:27:04,261 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-20 10:27:04,261 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383991129]
[2022-10-20 10:27:04,261 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-20 10:27:04,262 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-20 10:27:04,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-20 10:27:04,525 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-20 10:27:04,525 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-20 10:27:04,525 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383991129]
[2022-10-20 10:27:04,526 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383991129] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-20 10:27:04,526 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-20 10:27:04,526 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-10-20 10:27:04,529 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783271776]
[2022-10-20 10:27:04,530 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-20 10:27:04,535 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-10-20 10:27:04,535 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-20 10:27:04,587 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-10-20 10:27:04,589 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-10-20 10:27:04,593 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:04,595 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-20 10:27:04,596 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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)
[2022-10-20 10:27:04,596 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:27,071 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:27,071 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-10-20 10:27:27,072 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-20 10:27:27,073 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-20 10:27:27,073 INFO  L85        PathProgramCache]: Analyzing trace with hash -233565154, now seen corresponding path program 1 times
[2022-10-20 10:27:27,073 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-20 10:27:27,073 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967372940]
[2022-10-20 10:27:27,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-20 10:27:27,074 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-20 10:27:27,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-20 10:27:27,365 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-20 10:27:27,365 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-20 10:27:27,365 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967372940]
[2022-10-20 10:27:27,366 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967372940] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-20 10:27:27,366 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-20 10:27:27,366 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-10-20 10:27:27,366 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454400903]
[2022-10-20 10:27:27,366 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-20 10:27:27,369 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-10-20 10:27:27,369 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-20 10:27:27,371 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-10-20 10:27:27,371 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-10-20 10:27:27,371 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:27,373 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-20 10:27:27,373 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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)
[2022-10-20 10:27:27,374 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:27,374 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:39,456 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:39,456 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:27:39,457 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-10-20 10:27:39,457 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-20 10:27:39,457 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-20 10:27:39,457 INFO  L85        PathProgramCache]: Analyzing trace with hash 1119779054, now seen corresponding path program 1 times
[2022-10-20 10:27:39,457 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-20 10:27:39,458 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959652402]
[2022-10-20 10:27:39,458 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-20 10:27:39,458 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-20 10:27:39,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-20 10:27:39,952 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-20 10:27:39,952 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-20 10:27:39,952 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959652402]
[2022-10-20 10:27:39,953 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959652402] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-20 10:27:39,953 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-20 10:27:39,953 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-10-20 10:27:39,954 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081017764]
[2022-10-20 10:27:39,954 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-20 10:27:39,954 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-10-20 10:27:39,954 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-20 10:27:39,954 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-10-20 10:27:39,955 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-10-20 10:27:39,955 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:39,955 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-20 10:27:39,956 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 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)
[2022-10-20 10:27:39,956 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:39,956 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:27:39,956 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:53,014 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:53,015 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:27:53,015 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:27:53,015 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-10-20 10:27:53,016 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-20 10:27:53,016 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-20 10:27:53,017 INFO  L85        PathProgramCache]: Analyzing trace with hash -659495669, now seen corresponding path program 1 times
[2022-10-20 10:27:53,017 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-20 10:27:53,017 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881439621]
[2022-10-20 10:27:53,017 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-20 10:27:53,017 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-20 10:27:53,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-20 10:27:53,179 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-20 10:27:53,179 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-20 10:27:53,179 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881439621]
[2022-10-20 10:27:53,180 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881439621] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-20 10:27:53,180 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-20 10:27:53,180 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-10-20 10:27:53,181 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009131559]
[2022-10-20 10:27:53,184 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-20 10:27:53,186 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-10-20 10:27:53,186 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-20 10:27:53,187 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-10-20 10:27:53,188 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-10-20 10:27:53,191 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:53,191 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-20 10:27:53,192 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 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)
[2022-10-20 10:27:53,196 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:27:53,196 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:27:53,196 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:27:53,196 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:05,143 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:05,144 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:05,144 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:05,159 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:05,159 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-10-20 10:28:05,160 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-20 10:28:05,161 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-20 10:28:05,161 INFO  L85        PathProgramCache]: Analyzing trace with hash 647618782, now seen corresponding path program 1 times
[2022-10-20 10:28:05,162 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-20 10:28:05,162 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818915743]
[2022-10-20 10:28:05,162 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-20 10:28:05,162 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-20 10:28:05,188 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-20 10:28:05,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-20 10:28:05,239 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-20 10:28:05,239 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818915743]
[2022-10-20 10:28:05,239 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818915743] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-20 10:28:05,239 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-20 10:28:05,239 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-10-20 10:28:05,239 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192600627]
[2022-10-20 10:28:05,239 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-20 10:28:05,240 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-10-20 10:28:05,240 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-20 10:28:05,241 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-10-20 10:28:05,241 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-10-20 10:28:05,241 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:05,241 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-20 10:28:05,241 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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)
[2022-10-20 10:28:05,241 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:05,241 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:05,241 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:05,241 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:05,241 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:16,653 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:16,653 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:16,653 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:16,653 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:16,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:16,655 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-10-20 10:28:16,655 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-20 10:28:16,656 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-20 10:28:16,656 INFO  L85        PathProgramCache]: Analyzing trace with hash -1829836441, now seen corresponding path program 1 times
[2022-10-20 10:28:16,659 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-20 10:28:16,659 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620746199]
[2022-10-20 10:28:16,659 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-20 10:28:16,659 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-20 10:28:16,693 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-20 10:28:16,752 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-20 10:28:16,752 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-20 10:28:16,752 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620746199]
[2022-10-20 10:28:16,752 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620746199] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-20 10:28:16,752 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-20 10:28:16,753 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-10-20 10:28:16,753 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762288515]
[2022-10-20 10:28:16,753 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-20 10:28:16,754 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-10-20 10:28:16,754 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-20 10:28:16,754 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-10-20 10:28:16,755 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-10-20 10:28:16,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:16,756 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-20 10:28:16,756 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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)
[2022-10-20 10:28:16,756 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:16,756 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:16,756 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:16,757 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:16,757 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:16,757 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:34,281 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:34,281 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:34,281 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:34,281 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:34,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:34,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-10-20 10:28:34,282 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-10-20 10:28:34,282 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-20 10:28:34,283 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-20 10:28:34,283 INFO  L85        PathProgramCache]: Analyzing trace with hash -1895033262, now seen corresponding path program 1 times
[2022-10-20 10:28:34,283 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-20 10:28:34,283 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021623969]
[2022-10-20 10:28:34,283 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-20 10:28:34,283 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-20 10:28:34,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-20 10:28:34,598 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-20 10:28:34,598 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-20 10:28:34,599 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021623969]
[2022-10-20 10:28:34,599 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021623969] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-20 10:28:34,618 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-20 10:28:34,618 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-10-20 10:28:34,618 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266215478]
[2022-10-20 10:28:34,619 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-20 10:28:34,619 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-10-20 10:28:34,619 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-20 10:28:34,620 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-10-20 10:28:34,620 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-10-20 10:28:34,620 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:34,620 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-20 10:28:34,620 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 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)
[2022-10-20 10:28:34,620 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:28:34,620 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:34,620 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:34,620 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:34,621 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:28:34,621 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-10-20 10:28:34,621 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:29:17,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:29:17,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:29:17,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:29:17,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:29:17,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:29:17,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-10-20 10:29:17,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-10-20 10:29:17,507 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-10-20 10:29:17,507 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-20 10:29:17,507 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-20 10:29:17,507 INFO  L85        PathProgramCache]: Analyzing trace with hash 1429825766, now seen corresponding path program 1 times
[2022-10-20 10:29:17,508 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-20 10:29:17,508 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134458995]
[2022-10-20 10:29:17,508 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-20 10:29:17,509 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-20 10:29:17,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-20 10:29:17,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-20 10:29:17,652 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-20 10:29:17,652 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134458995]
[2022-10-20 10:29:17,653 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134458995] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-20 10:29:17,654 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-20 10:29:17,654 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-10-20 10:29:17,654 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898339261]
[2022-10-20 10:29:17,654 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-20 10:29:17,654 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-10-20 10:29:17,654 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-20 10:29:17,655 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-10-20 10:29:17,655 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-10-20 10:29:17,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:29:17,655 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-20 10:29:17,655 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 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)
[2022-10-20 10:29:17,655 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:29:17,655 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:29:17,655 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:29:17,656 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:29:17,656 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:29:17,656 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-10-20 10:29:17,656 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2022-10-20 10:29:17,656 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:32:00,381 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:32:00,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:32:00,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:32:00,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:32:00,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:32:00,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-10-20 10:32:00,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-10-20 10:32:00,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-10-20 10:32:00,382 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-10-20 10:32:00,383 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-20 10:32:00,383 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-20 10:32:00,383 INFO  L85        PathProgramCache]: Analyzing trace with hash 179134916, now seen corresponding path program 2 times
[2022-10-20 10:32:00,383 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-20 10:32:00,383 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933529276]
[2022-10-20 10:32:00,383 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-20 10:32:00,384 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-20 10:32:00,423 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-20 10:32:01,292 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-20 10:32:01,293 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-20 10:32:01,293 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933529276]
[2022-10-20 10:32:01,293 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933529276] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-20 10:32:01,293 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-20 10:32:01,293 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-10-20 10:32:01,293 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335401420]
[2022-10-20 10:32:01,293 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-20 10:32:01,294 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-10-20 10:32:01,294 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-20 10:32:01,295 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-10-20 10:32:01,295 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-10-20 10:32:01,295 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:32:01,295 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-20 10:32:01,295 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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)
[2022-10-20 10:32:01,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-20 10:32:01,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:32:01,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:32:01,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:32:01,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-10-20 10:32:01,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-10-20 10:32:01,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2022-10-20 10:32:01,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-10-20 10:32:01,296 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.