/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/chunk27/chl-nzb-file-trans.wvr.line1553.bpl


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


This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m
[2022-10-24 16:38:24,391 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-10-24 16:38:24,436 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf
[2022-10-24 16:38:24,456 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-10-24 16:38:24,456 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-10-24 16:38:24,456 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-10-24 16:38:24,457 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-10-24 16:38:24,457 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-10-24 16:38:24,457 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-10-24 16:38:24,458 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-10-24 16:38:24,458 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-10-24 16:38:24,458 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-10-24 16:38:24,458 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-10-24 16:38:24,458 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-10-24 16:38:24,458 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-10-24 16:38:24,458 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-10-24 16:38:24,458 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-10-24 16:38:24,459 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-10-24 16:38:24,459 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-10-24 16:38:24,459 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-10-24 16:38:24,459 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-10-24 16:38:24,459 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-10-24 16:38:24,459 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-10-24 16:38:24,459 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-10-24 16:38:24,459 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-10-24 16:38:24,460 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-10-24 16:38:24,460 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-10-24 16:38:24,460 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-10-24 16:38:24,460 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-10-24 16:38:24,460 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-10-24 16:38:24,460 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-10-24 16:38:24,460 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-10-24 16:38:24,460 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-10-24 16:38:24,460 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-10-24 16:38:24,461 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-10-24 16:38:24,461 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-10-24 16:38:24,461 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-10-24 16:38:24,461 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2022-10-24 16:38:24,461 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER
[2022-10-24 16:38:24,736 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-10-24 16:38:24,750 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-10-24 16:38:24,752 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-10-24 16:38:24,753 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-10-24 16:38:24,760 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-10-24 16:38:24,762 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk27/chl-nzb-file-trans.wvr.line1553.bpl
[2022-10-24 16:38:24,762 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk27/chl-nzb-file-trans.wvr.line1553.bpl'
[2022-10-24 16:38:24,828 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-10-24 16:38:24,829 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-10-24 16:38:24,830 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-10-24 16:38:24,830 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-10-24 16:38:24,830 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-10-24 16:38:24,839 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:38:24" (1/1) ...
[2022-10-24 16:38:24,870 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:38:24" (1/1) ...
[2022-10-24 16:38:24,880 INFO  L138                Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-10-24 16:38:24,881 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-10-24 16:38:24,883 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-10-24 16:38:24,883 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-10-24 16:38:24,883 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-10-24 16:38:24,889 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:38:24" (1/1) ...
[2022-10-24 16:38:24,889 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:38:24" (1/1) ...
[2022-10-24 16:38:24,903 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:38:24" (1/1) ...
[2022-10-24 16:38:24,904 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:38:24" (1/1) ...
[2022-10-24 16:38:24,938 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:38:24" (1/1) ...
[2022-10-24 16:38:24,955 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:38:24" (1/1) ...
[2022-10-24 16:38:24,959 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:38:24" (1/1) ...
[2022-10-24 16:38:24,965 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-10-24 16:38:24,966 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-10-24 16:38:24,966 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-10-24 16:38:24,966 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-10-24 16:38:24,976 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:38:24" (1/1) ...
[2022-10-24 16:38:24,981 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-10-24 16:38:24,987 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-24 16:38:25,000 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)
[2022-10-24 16:38:25,017 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
[2022-10-24 16:38:25,049 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-10-24 16:38:25,049 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-10-24 16:38:25,049 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-10-24 16:38:25,049 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-10-24 16:38:25,049 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-10-24 16:38:25,049 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-10-24 16:38:25,050 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2022-10-24 16:38:25,050 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2022-10-24 16:38:25,052 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-10-24 16:38:25,209 INFO  L234             CfgBuilder]: Building ICFG
[2022-10-24 16:38:25,217 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-10-24 16:38:25,930 INFO  L275             CfgBuilder]: Performing block encoding
[2022-10-24 16:38:25,964 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-10-24 16:38:25,965 INFO  L299             CfgBuilder]: Removed 6 assume(true) statements.
[2022-10-24 16:38:25,970 INFO  L202        PluginConnector]: Adding new model chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:38:25 BoogieIcfgContainer
[2022-10-24 16:38:25,971 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-10-24 16:38:25,973 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-10-24 16:38:25,973 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-10-24 16:38:25,976 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-10-24 16:38:25,976 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:38:24" (1/2) ...
[2022-10-24 16:38:25,977 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c4879c and model type chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:38:25, skipping insertion in model container
[2022-10-24 16:38:25,977 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-trans.wvr.line1553.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:38:25" (2/2) ...
[2022-10-24 16:38:25,992 INFO  L112   eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.line1553.bpl
[2022-10-24 16:38:25,998 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-10-24 16:38:26,004 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-10-24 16:38:26,005 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-10-24 16:38:26,005 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-10-24 16:38:26,255 INFO  L144    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-10-24 16:38:26,313 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-10-24 16:38:26,314 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-10-24 16:38:26,314 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-24 16:38:26,316 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)
[2022-10-24 16:38:26,338 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
[2022-10-24 16:38:26,375 INFO  L159   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2022-10-24 16:38:26,390 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ========
[2022-10-24 16:38:26,399 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;@4cf4311c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-10-24 16:38:26,400 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-10-24 16:38:26,531 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-24 16:38:26,536 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-24 16:38:26,536 INFO  L85        PathProgramCache]: Analyzing trace with hash -1153280476, now seen corresponding path program 1 times
[2022-10-24 16:38:26,543 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-24 16:38:26,544 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399431092]
[2022-10-24 16:38:26,544 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-24 16:38:26,544 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-24 16:38:26,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-24 16:38:26,898 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-24 16:38:26,898 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-24 16:38:26,898 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399431092]
[2022-10-24 16:38:26,899 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399431092] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-24 16:38:26,899 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-24 16:38:26,899 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-10-24 16:38:26,900 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139971976]
[2022-10-24 16:38:26,901 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-24 16:38:26,909 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-10-24 16:38:26,909 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-24 16:38:26,992 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-10-24 16:38:26,994 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-10-24 16:38:26,994 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:26,995 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-24 16:38:26,998 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 179.5) internal successors, (359), 2 states have internal predecessors, (359), 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)
[2022-10-24 16:38:26,998 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:38,237 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:38,238 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-10-24 16:38:38,238 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-24 16:38:38,239 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-24 16:38:38,239 INFO  L85        PathProgramCache]: Analyzing trace with hash 1633889865, now seen corresponding path program 1 times
[2022-10-24 16:38:38,239 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-24 16:38:38,239 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472197993]
[2022-10-24 16:38:38,240 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-24 16:38:38,240 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-24 16:38:38,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-24 16:38:38,465 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-24 16:38:38,465 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-24 16:38:38,465 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472197993]
[2022-10-24 16:38:38,465 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472197993] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-24 16:38:38,465 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-24 16:38:38,466 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-10-24 16:38:38,466 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16865452]
[2022-10-24 16:38:38,466 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-24 16:38:38,467 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-10-24 16:38:38,467 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-24 16:38:38,468 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-10-24 16:38:38,468 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-10-24 16:38:38,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:38,470 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-24 16:38:38,470 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 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)
[2022-10-24 16:38:38,470 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:38,470 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:44,575 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:44,575 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-10-24 16:38:44,575 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-10-24 16:38:44,576 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-24 16:38:44,576 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-24 16:38:44,576 INFO  L85        PathProgramCache]: Analyzing trace with hash -741064795, now seen corresponding path program 1 times
[2022-10-24 16:38:44,576 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-24 16:38:44,577 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511583066]
[2022-10-24 16:38:44,577 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-24 16:38:44,577 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-24 16:38:44,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-24 16:38:44,764 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-10-24 16:38:44,765 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-24 16:38:44,765 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511583066]
[2022-10-24 16:38:44,765 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511583066] provided 0 perfect and 1 imperfect interpolant sequences
[2022-10-24 16:38:44,766 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2022-10-24 16:38:44,766 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2022-10-24 16:38:44,766 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728729752]
[2022-10-24 16:38:44,767 INFO  L85    oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2022-10-24 16:38:44,767 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-10-24 16:38:44,767 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-24 16:38:44,768 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-10-24 16:38:44,769 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2022-10-24 16:38:44,769 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:44,769 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-24 16:38:44,770 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 55.57142857142857) internal successors, (389), 7 states have internal predecessors, (389), 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)
[2022-10-24 16:38:44,770 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:44,770 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-10-24 16:38:44,771 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:50,167 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:50,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-10-24 16:38:50,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-10-24 16:38:50,168 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-10-24 16:38:50,168 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-24 16:38:50,169 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-24 16:38:50,169 INFO  L85        PathProgramCache]: Analyzing trace with hash 1799998857, now seen corresponding path program 2 times
[2022-10-24 16:38:50,169 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-24 16:38:50,169 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303280427]
[2022-10-24 16:38:50,169 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-24 16:38:50,170 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-24 16:38:50,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-24 16:38:50,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2022-10-24 16:38:50,333 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-24 16:38:50,333 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303280427]
[2022-10-24 16:38:50,334 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303280427] provided 0 perfect and 1 imperfect interpolant sequences
[2022-10-24 16:38:50,334 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2022-10-24 16:38:50,334 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2022-10-24 16:38:50,334 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476919215]
[2022-10-24 16:38:50,337 INFO  L85    oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2022-10-24 16:38:50,338 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2022-10-24 16:38:50,338 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-24 16:38:50,339 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2022-10-24 16:38:50,339 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2022-10-24 16:38:50,342 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:50,342 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-24 16:38:50,343 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 44.666666666666664) internal successors, (402), 9 states have internal predecessors, (402), 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)
[2022-10-24 16:38:50,347 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:50,347 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-10-24 16:38:50,347 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2022-10-24 16:38:50,348 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:56,715 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:56,715 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-10-24 16:38:56,716 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-10-24 16:38:56,716 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-10-24 16:38:56,716 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-10-24 16:38:56,716 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-24 16:38:56,717 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-24 16:38:56,717 INFO  L85        PathProgramCache]: Analyzing trace with hash 188499045, now seen corresponding path program 3 times
[2022-10-24 16:38:56,717 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-24 16:38:56,717 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129293795]
[2022-10-24 16:38:56,717 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-24 16:38:56,717 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-24 16:38:56,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-24 16:38:56,940 INFO  L134       CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2022-10-24 16:38:56,940 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-24 16:38:56,940 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129293795]
[2022-10-24 16:38:56,940 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129293795] provided 0 perfect and 1 imperfect interpolant sequences
[2022-10-24 16:38:56,940 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2022-10-24 16:38:56,940 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11
[2022-10-24 16:38:56,941 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585684508]
[2022-10-24 16:38:56,941 INFO  L85    oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2022-10-24 16:38:56,941 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2022-10-24 16:38:56,941 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-24 16:38:56,942 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2022-10-24 16:38:56,942 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110
[2022-10-24 16:38:56,942 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:56,942 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-24 16:38:56,943 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 37.72727272727273) internal successors, (415), 11 states have internal predecessors, (415), 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)
[2022-10-24 16:38:56,943 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:38:56,943 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-10-24 16:38:56,943 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2022-10-24 16:38:56,943 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-10-24 16:38:56,943 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:39:03,177 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:39:03,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-10-24 16:39:03,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-10-24 16:39:03,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-10-24 16:39:03,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2022-10-24 16:39:03,179 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-10-24 16:39:03,179 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-24 16:39:03,179 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-24 16:39:03,179 INFO  L85        PathProgramCache]: Analyzing trace with hash -1037579063, now seen corresponding path program 4 times
[2022-10-24 16:39:03,179 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-24 16:39:03,179 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846299353]
[2022-10-24 16:39:03,180 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-24 16:39:03,183 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-24 16:39:03,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-24 16:39:03,441 INFO  L134       CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked.
[2022-10-24 16:39:03,441 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-24 16:39:03,441 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846299353]
[2022-10-24 16:39:03,442 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846299353] provided 0 perfect and 1 imperfect interpolant sequences
[2022-10-24 16:39:03,442 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2022-10-24 16:39:03,442 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2022-10-24 16:39:03,442 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675551266]
[2022-10-24 16:39:03,442 INFO  L85    oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2022-10-24 16:39:03,444 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2022-10-24 16:39:03,444 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-24 16:39:03,445 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2022-10-24 16:39:03,446 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156
[2022-10-24 16:39:03,446 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:39:03,446 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-24 16:39:03,447 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 32.92307692307692) internal successors, (428), 13 states have internal predecessors, (428), 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)
[2022-10-24 16:39:03,447 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:39:03,447 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-10-24 16:39:03,447 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2022-10-24 16:39:03,447 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-10-24 16:39:03,447 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. 
[2022-10-24 16:39:03,447 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:39:10,350 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:39:10,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-10-24 16:39:10,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-10-24 16:39:10,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-10-24 16:39:10,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2022-10-24 16:39:10,352 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2022-10-24 16:39:10,352 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-10-24 16:39:10,352 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-24 16:39:10,353 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-24 16:39:10,353 INFO  L85        PathProgramCache]: Analyzing trace with hash -418846427, now seen corresponding path program 5 times
[2022-10-24 16:39:10,353 INFO  L118   FreeRefinementEngine]: Executing refinement strategy BADGER
[2022-10-24 16:39:10,353 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785769662]
[2022-10-24 16:39:10,353 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-24 16:39:10,354 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-24 16:39:10,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-24 16:39:10,632 INFO  L134       CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked.
[2022-10-24 16:39:10,632 INFO  L136   FreeRefinementEngine]: Strategy BADGER found an infeasible trace
[2022-10-24 16:39:10,632 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785769662]
[2022-10-24 16:39:10,632 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785769662] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-24 16:39:10,633 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-24 16:39:10,633 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-10-24 16:39:10,633 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592731071]
[2022-10-24 16:39:10,633 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-24 16:39:10,633 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-10-24 16:39:10,633 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER
[2022-10-24 16:39:10,634 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-10-24 16:39:10,634 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2022-10-24 16:39:10,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:39:10,634 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-24 16:39:10,634 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 55.57142857142857) internal successors, (389), 8 states have internal predecessors, (389), 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)
[2022-10-24 16:39:10,634 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-24 16:39:10,635 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2022-10-24 16:39:10,635 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2022-10-24 16:39:10,635 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-10-24 16:39:10,635 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. 
[2022-10-24 16:39:10,635 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. 
[2022-10-24 16:39:10,635 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.