/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1454.bpl


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


This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m
[2022-10-03 15:32:25,747 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-10-03 15:32:25,842 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf
[2022-10-03 15:32:25,871 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-10-03 15:32:25,871 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-10-03 15:32:25,872 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-10-03 15:32:25,872 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-10-03 15:32:25,873 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-10-03 15:32:25,873 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-10-03 15:32:25,874 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-10-03 15:32:25,874 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-10-03 15:32:25,874 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-10-03 15:32:25,874 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-10-03 15:32:25,875 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-10-03 15:32:25,875 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-10-03 15:32:25,875 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-10-03 15:32:25,875 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-10-03 15:32:25,875 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-10-03 15:32:25,875 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-10-03 15:32:25,876 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-10-03 15:32:25,876 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-10-03 15:32:25,876 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-10-03 15:32:25,876 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-10-03 15:32:25,876 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-10-03 15:32:25,876 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-10-03 15:32:25,877 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-10-03 15:32:25,877 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-10-03 15:32:25,877 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-10-03 15:32:25,877 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-10-03 15:32:25,877 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-10-03 15:32:25,877 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-10-03 15:32:25,877 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-10-03 15:32:25,878 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-10-03 15:32:25,878 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-10-03 15:32:25,878 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-10-03 15:32:25,878 INFO  L138        SettingsManager]:  * Abstraction used for commutativity in POR=VARIABLES_GLOBAL
[2022-10-03 15:32:25,878 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-10-03 15:32:25,879 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-10-03 15:32:25,879 INFO  L138        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION
[2022-10-03 15:32:25,879 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2022-10-03 15:32:25,879 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-10-03 15:32:25,879 INFO  L138        SettingsManager]:  * Independence relation used for POR in concurrent analysis=SYNTACTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-10-03 15:32:26,116 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-10-03 15:32:26,134 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-10-03 15:32:26,136 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-10-03 15:32:26,137 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-10-03 15:32:26,138 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-10-03 15:32:26,139 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1454.bpl
[2022-10-03 15:32:26,140 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1454.bpl'
[2022-10-03 15:32:26,221 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-10-03 15:32:26,223 INFO  L131        ToolchainWalker]: Walking toolchain with 3 elements.
[2022-10-03 15:32:26,224 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-10-03 15:32:26,224 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-10-03 15:32:26,224 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-10-03 15:32:26,238 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ...
[2022-10-03 15:32:26,239 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ...
[2022-10-03 15:32:26,285 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ...
[2022-10-03 15:32:26,286 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ...
[2022-10-03 15:32:26,355 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ...
[2022-10-03 15:32:26,360 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ...
[2022-10-03 15:32:26,366 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ...
[2022-10-03 15:32:26,377 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-10-03 15:32:26,391 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-10-03 15:32:26,392 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-10-03 15:32:26,392 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-10-03 15:32:26,395 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ...
[2022-10-03 15:32:26,409 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-10-03 15:32:26,416 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-03 15:32:26,437 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)
[2022-10-03 15:32:26,451 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
[2022-10-03 15:32:26,493 INFO  L130     BoogieDeclarations]: Found specification of procedure pusher
[2022-10-03 15:32:26,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure pusher
[2022-10-03 15:32:26,494 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-10-03 15:32:26,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-10-03 15:32:26,495 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-10-03 15:32:26,714 INFO  L234             CfgBuilder]: Building ICFG
[2022-10-03 15:32:26,715 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-10-03 15:32:27,870 INFO  L275             CfgBuilder]: Performing block encoding
[2022-10-03 15:32:27,891 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-10-03 15:32:27,891 INFO  L299             CfgBuilder]: Removed 4 assume(true) statements.
[2022-10-03 15:32:27,894 INFO  L202        PluginConnector]: Adding new model divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:32:27 BoogieIcfgContainer
[2022-10-03 15:32:27,894 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-10-03 15:32:27,896 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-10-03 15:32:27,896 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-10-03 15:32:27,900 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-10-03 15:32:27,900 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/2) ...
[2022-10-03 15:32:27,901 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c3db7e and model type divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 03:32:27, skipping insertion in model container
[2022-10-03 15:32:27,901 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:32:27" (2/2) ...
[2022-10-03 15:32:27,902 INFO  L112   eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1454.bpl
[2022-10-03 15:32:27,908 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-10-03 15:32:27,918 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-10-03 15:32:27,918 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-10-03 15:32:27,918 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-10-03 15:32:28,057 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2022-10-03 15:32:28,110 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-10-03 15:32:28,110 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-10-03 15:32:28,111 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-03 15:32:28,115 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)
[2022-10-03 15:32:28,124 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
[2022-10-03 15:32:28,154 INFO  L158   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2022-10-03 15:32:28,163 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ========
[2022-10-03 15:32:28,173 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;@716b9f4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-10-03 15:32:28,174 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-10-03 15:32:28,655 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-03 15:32:28,660 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-03 15:32:28,660 INFO  L85        PathProgramCache]: Analyzing trace with hash 428801181, now seen corresponding path program 1 times
[2022-10-03 15:32:28,668 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-10-03 15:32:28,668 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131774225]
[2022-10-03 15:32:28,669 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-03 15:32:28,669 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-03 15:32:28,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-03 15:32:29,247 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-03 15:32:29,248 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-10-03 15:32:29,248 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131774225]
[2022-10-03 15:32:29,248 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131774225] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-03 15:32:29,249 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-03 15:32:29,249 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-10-03 15:32:29,250 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755666195]
[2022-10-03 15:32:29,251 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-03 15:32:29,260 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-10-03 15:32:29,261 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-10-03 15:32:29,280 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-10-03 15:32:29,281 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-10-03 15:32:29,281 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:32:29,285 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-03 15:32:29,286 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 316.0) internal successors, (632), 2 states have internal predecessors, (632), 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)
[2022-10-03 15:32:29,286 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:32:29,540 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:32:29,541 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-10-03 15:32:29,541 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-03 15:32:29,541 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-03 15:32:29,542 INFO  L85        PathProgramCache]: Analyzing trace with hash -1106904502, now seen corresponding path program 1 times
[2022-10-03 15:32:29,542 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-10-03 15:32:29,542 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947489115]
[2022-10-03 15:32:29,542 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-03 15:32:29,543 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-03 15:32:29,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-03 15:32:30,617 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-03 15:32:30,617 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-10-03 15:32:30,617 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947489115]
[2022-10-03 15:32:30,618 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947489115] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-03 15:32:30,618 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-03 15:32:30,618 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-10-03 15:32:30,618 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533639764]
[2022-10-03 15:32:30,618 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-03 15:32:30,620 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2022-10-03 15:32:30,620 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-10-03 15:32:30,620 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2022-10-03 15:32:30,621 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272
[2022-10-03 15:32:30,621 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:32:30,622 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-03 15:32:30,623 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 16 states have (on average 43.625) internal successors, (698), 17 states have internal predecessors, (698), 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)
[2022-10-03 15:32:30,623 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:32:30,623 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:32:32,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:32:32,860 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2022-10-03 15:32:32,860 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-10-03 15:32:32,860 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-03 15:32:32,861 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-03 15:32:32,861 INFO  L85        PathProgramCache]: Analyzing trace with hash 2139974037, now seen corresponding path program 1 times
[2022-10-03 15:32:32,861 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-10-03 15:32:32,861 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968806238]
[2022-10-03 15:32:32,862 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-03 15:32:32,862 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-03 15:32:33,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-03 15:32:33,646 INFO  L134       CoverageAnalysis]: Checked inductivity of 186 backedges. 143 proven. 41 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-10-03 15:32:33,647 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-10-03 15:32:33,647 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968806238]
[2022-10-03 15:32:33,648 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968806238] provided 0 perfect and 1 imperfect interpolant sequences
[2022-10-03 15:32:33,649 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012865731]
[2022-10-03 15:32:33,649 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-03 15:32:33,649 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-10-03 15:32:33,650 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-03 15:32:33,651 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-10-03 15:32:33,652 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-10-03 15:32:34,234 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-03 15:32:34,251 INFO  L263         TraceCheckSpWp]: Trace formula consists of 2560 conjuncts, 264 conjunts are in the unsatisfiable core
[2022-10-03 15:32:34,292 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-10-03 15:32:35,044 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-10-03 15:32:36,614 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2022-10-03 15:32:37,024 INFO  L356             Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-10-03 15:32:37,025 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31
[2022-10-03 15:32:37,039 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-10-03 15:32:37,040 INFO  L173   IndexEqualityManager]: detected equality via solver
[2022-10-03 15:32:37,042 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2022-10-03 15:32:42,701 INFO  L356             Elim1Store]: treesize reduction 28, result has 61.6 percent of original size
[2022-10-03 15:32:42,702 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 80
[2022-10-03 15:32:44,592 INFO  L356             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-10-03 15:32:44,594 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 33
[2022-10-03 15:32:45,156 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2022-10-03 15:32:45,721 INFO  L356             Elim1Store]: treesize reduction 37, result has 15.9 percent of original size
[2022-10-03 15:32:45,722 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 20
[2022-10-03 15:32:47,028 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-10-03 15:32:47,029 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20
[2022-10-03 15:32:47,984 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-10-03 15:32:47,990 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-10-03 15:32:47,990 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20
[2022-10-03 15:32:51,128 INFO  L356             Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2022-10-03 15:32:51,129 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 40
[2022-10-03 15:32:51,142 INFO  L356             Elim1Store]: treesize reduction 15, result has 46.4 percent of original size
[2022-10-03 15:32:51,142 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 32
[2022-10-03 15:32:51,146 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-10-03 15:32:51,146 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3
[2022-10-03 15:32:52,093 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10
[2022-10-03 15:32:52,097 INFO  L173   IndexEqualityManager]: detected equality via solver
[2022-10-03 15:32:52,099 INFO  L356             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-10-03 15:32:52,100 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 18
[2022-10-03 15:32:52,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 186 backedges. 45 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-03 15:32:52,206 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-10-03 15:32:52,619 WARN  L833   $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse0 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4))))) (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse1 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false
[2022-10-03 15:32:52,639 WARN  L833   $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse0 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse1 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))))) is different from false
[2022-10-03 15:32:52,652 WARN  L833   $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))))) is different from false
[2022-10-03 15:32:52,700 WARN  L833   $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#value#1.base| v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4))))) (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_read~$Pointer$_#value#1.base| v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false
[2022-10-03 15:32:52,705 WARN  L833   $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|) v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|) v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false
[2022-10-03 15:32:52,721 WARN  L833   $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|) v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|) v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false
[2022-10-03 15:32:54,795 INFO  L356             Elim1Store]: treesize reduction 34, result has 59.0 percent of original size
[2022-10-03 15:32:54,796 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 214 treesize of output 226
[2022-10-03 15:32:54,817 INFO  L356             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-10-03 15:32:54,817 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 239 treesize of output 235
[2022-10-03 15:32:54,823 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 100
[2022-10-03 15:32:59,498 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20
[2022-10-03 15:33:01,406 INFO  L356             Elim1Store]: treesize reduction 34, result has 59.0 percent of original size
[2022-10-03 15:33:01,406 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 116 treesize of output 136
[2022-10-03 15:33:01,409 INFO  L173   IndexEqualityManager]: detected equality via solver
[2022-10-03 15:33:01,436 INFO  L356             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-10-03 15:33:01,436 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 59 treesize of output 100
[2022-10-03 15:33:03,989 INFO  L134       CoverageAnalysis]: Checked inductivity of 186 backedges. 45 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 69 not checked.
[2022-10-03 15:33:03,990 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012865731] provided 0 perfect and 2 imperfect interpolant sequences
[2022-10-03 15:33:03,990 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-10-03 15:33:03,991 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 84, 81] total 173
[2022-10-03 15:33:03,994 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549922996]
[2022-10-03 15:33:03,994 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-10-03 15:33:04,000 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 173 states
[2022-10-03 15:33:04,000 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-10-03 15:33:04,001 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants.
[2022-10-03 15:33:04,011 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=26694, Unknown=62, NotChecked=2010, Total=29756
[2022-10-03 15:33:04,011 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:04,012 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-03 15:33:04,015 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 173 states, 173 states have (on average 16.809248554913296) internal successors, (2908), 173 states have internal predecessors, (2908), 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)
[2022-10-03 15:33:04,015 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:04,015 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. 
[2022-10-03 15:33:04,016 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:13,249 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:13,249 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2022-10-03 15:33:13,250 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. 
[2022-10-03 15:33:13,277 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-10-03 15:33:13,462 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2022-10-03 15:33:13,462 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-03 15:33:13,463 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-03 15:33:13,463 INFO  L85        PathProgramCache]: Analyzing trace with hash -1835025362, now seen corresponding path program 1 times
[2022-10-03 15:33:13,463 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-10-03 15:33:13,464 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422965757]
[2022-10-03 15:33:13,464 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-03 15:33:13,464 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-03 15:33:13,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-03 15:33:14,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 1251 backedges. 907 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked.
[2022-10-03 15:33:14,449 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-10-03 15:33:14,450 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422965757]
[2022-10-03 15:33:14,450 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422965757] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-03 15:33:14,450 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-03 15:33:14,450 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-10-03 15:33:14,450 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054643485]
[2022-10-03 15:33:14,450 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-03 15:33:14,452 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-10-03 15:33:14,452 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-10-03 15:33:14,452 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-10-03 15:33:14,453 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420
[2022-10-03 15:33:14,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:14,454 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-03 15:33:14,454 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 21 states, 21 states have (on average 57.095238095238095) internal successors, (1199), 21 states have internal predecessors, (1199), 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)
[2022-10-03 15:33:14,454 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:14,454 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. 
[2022-10-03 15:33:14,455 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. 
[2022-10-03 15:33:14,455 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:18,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:18,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2022-10-03 15:33:18,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. 
[2022-10-03 15:33:18,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2022-10-03 15:33:18,168 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-10-03 15:33:18,169 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-03 15:33:18,169 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-03 15:33:18,169 INFO  L85        PathProgramCache]: Analyzing trace with hash -913162949, now seen corresponding path program 1 times
[2022-10-03 15:33:18,169 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-10-03 15:33:18,170 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812444769]
[2022-10-03 15:33:18,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-03 15:33:18,170 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-03 15:33:18,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-03 15:33:19,394 INFO  L134       CoverageAnalysis]: Checked inductivity of 1409 backedges. 143 proven. 822 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked.
[2022-10-03 15:33:19,395 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-10-03 15:33:19,395 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812444769]
[2022-10-03 15:33:19,395 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812444769] provided 0 perfect and 1 imperfect interpolant sequences
[2022-10-03 15:33:19,395 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942046685]
[2022-10-03 15:33:19,395 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-03 15:33:19,396 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-10-03 15:33:19,396 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-03 15:33:19,399 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-10-03 15:33:19,400 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-10-03 15:33:20,101 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-03 15:33:20,120 INFO  L263         TraceCheckSpWp]: Trace formula consists of 4358 conjuncts, 167 conjunts are in the unsatisfiable core
[2022-10-03 15:33:20,150 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-10-03 15:33:20,167 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2022-10-03 15:33:20,216 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2022-10-03 15:33:20,370 INFO  L356             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-10-03 15:33:20,371 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2022-10-03 15:33:20,424 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14
[2022-10-03 15:33:20,989 INFO  L356             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-10-03 15:33:20,989 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2022-10-03 15:33:21,031 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14
[2022-10-03 15:33:23,144 INFO  L356             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-10-03 15:33:23,144 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25
[2022-10-03 15:33:23,880 INFO  L356             Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2022-10-03 15:33:23,880 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39
[2022-10-03 15:33:23,884 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29
[2022-10-03 15:33:24,486 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-10-03 15:33:24,488 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 14
[2022-10-03 15:33:24,493 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2022-10-03 15:33:24,494 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 13
[2022-10-03 15:33:24,618 INFO  L134       CoverageAnalysis]: Checked inductivity of 1409 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked.
[2022-10-03 15:33:24,618 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-10-03 15:33:24,619 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942046685] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-03 15:33:24,619 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-10-03 15:33:24,619 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [14] total 66
[2022-10-03 15:33:24,619 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730829595]
[2022-10-03 15:33:24,619 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-03 15:33:24,621 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 53 states
[2022-10-03 15:33:24,621 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-10-03 15:33:24,621 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants.
[2022-10-03 15:33:24,623 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=4036, Unknown=0, NotChecked=0, Total=4290
[2022-10-03 15:33:24,623 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:24,624 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-03 15:33:24,624 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 53 states, 53 states have (on average 24.0188679245283) internal successors, (1273), 53 states have internal predecessors, (1273), 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)
[2022-10-03 15:33:24,624 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:24,625 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. 
[2022-10-03 15:33:24,625 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. 
[2022-10-03 15:33:24,625 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. 
[2022-10-03 15:33:24,625 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:41,448 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:41,448 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2022-10-03 15:33:41,448 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. 
[2022-10-03 15:33:41,448 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. 
[2022-10-03 15:33:41,449 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. 
[2022-10-03 15:33:41,471 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2022-10-03 15:33:41,649 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-10-03 15:33:41,649 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-03 15:33:41,650 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-03 15:33:41,650 INFO  L85        PathProgramCache]: Analyzing trace with hash -728550697, now seen corresponding path program 1 times
[2022-10-03 15:33:41,650 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-10-03 15:33:41,650 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768851235]
[2022-10-03 15:33:41,651 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-03 15:33:41,651 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-03 15:33:41,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-03 15:33:42,522 INFO  L134       CoverageAnalysis]: Checked inductivity of 728 backedges. 141 proven. 311 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2022-10-03 15:33:42,522 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-10-03 15:33:42,522 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768851235]
[2022-10-03 15:33:42,522 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768851235] provided 0 perfect and 1 imperfect interpolant sequences
[2022-10-03 15:33:42,523 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659579341]
[2022-10-03 15:33:42,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-03 15:33:42,523 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-10-03 15:33:42,523 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-03 15:33:42,524 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-10-03 15:33:42,527 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-10-03 15:33:43,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-03 15:33:43,191 INFO  L263         TraceCheckSpWp]: Trace formula consists of 3543 conjuncts, 41 conjunts are in the unsatisfiable core
[2022-10-03 15:33:43,212 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-10-03 15:33:44,980 INFO  L134       CoverageAnalysis]: Checked inductivity of 728 backedges. 141 proven. 311 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2022-10-03 15:33:44,981 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-10-03 15:33:45,556 INFO  L356             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-10-03 15:33:45,556 INFO  L390             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21
[2022-10-03 15:33:46,908 INFO  L134       CoverageAnalysis]: Checked inductivity of 728 backedges. 0 proven. 452 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2022-10-03 15:33:46,909 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659579341] provided 0 perfect and 2 imperfect interpolant sequences
[2022-10-03 15:33:46,909 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-10-03 15:33:46,909 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 12] total 23
[2022-10-03 15:33:46,909 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169438762]
[2022-10-03 15:33:46,909 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-10-03 15:33:46,912 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2022-10-03 15:33:46,912 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-10-03 15:33:46,912 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2022-10-03 15:33:46,912 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552
[2022-10-03 15:33:46,913 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:46,914 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-03 15:33:46,915 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 24 states, 23 states have (on average 61.78260869565217) internal successors, (1421), 24 states have internal predecessors, (1421), 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)
[2022-10-03 15:33:46,915 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-10-03 15:33:46,915 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. 
[2022-10-03 15:33:46,915 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. 
[2022-10-03 15:33:46,915 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. 
[2022-10-03 15:33:46,915 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. 
[2022-10-03 15:33:46,915 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.