/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl


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


This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
[2022-02-09 19:46:33,098 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-02-09 19:46:33,165 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2022-02-09 19:46:33,180 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf
[2022-02-09 19:46:33,192 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-02-09 19:46:33,193 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-09 19:46:33,193 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-09 19:46:33,193 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-09 19:46:33,193 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-09 19:46:33,193 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-09 19:46:33,194 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-09 19:46:33,194 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-02-09 19:46:33,194 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-02-09 19:46:33,194 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-09 19:46:33,194 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-02-09 19:46:33,194 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-02-09 19:46:33,194 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-02-09 19:46:33,194 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-02-09 19:46:33,195 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-02-09 19:46:33,195 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-09 19:46:33,195 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-02-09 19:46:33,195 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-02-09 19:46:33,195 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-02-09 19:46:33,195 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-02-09 19:46:33,195 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-02-09 19:46:33,195 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-09 19:46:33,195 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-02-09 19:46:33,195 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-02-09 19:46:33,196 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-02-09 19:46:33,196 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 19:46:33,196 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-09 19:46:33,196 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-02-09 19:46:33,196 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-09 19:46:33,196 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-02-09 19:46:33,196 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-09 19:46:33,196 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-02-09 19:46:33,196 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-02-09 19:46:33,196 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-09 19:46:33,197 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS
[2022-02-09 19:46:33,197 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-09 19:46:33,372 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-09 19:46:33,383 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-09 19:46:33,385 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-09 19:46:33,386 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-02-09 19:46:33,386 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-02-09 19:46:33,387 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl
[2022-02-09 19:46:33,387 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/parray-copy.wvr.bpl'
[2022-02-09 19:46:33,403 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-09 19:46:33,404 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-09 19:46:33,405 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-09 19:46:33,405 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-09 19:46:33,405 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-09 19:46:33,412 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:46:33" (1/1) ...
[2022-02-09 19:46:33,417 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:46:33" (1/1) ...
[2022-02-09 19:46:33,421 INFO  L137                Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-02-09 19:46:33,422 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-09 19:46:33,423 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-09 19:46:33,423 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-09 19:46:33,423 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-02-09 19:46:33,428 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:46:33" (1/1) ...
[2022-02-09 19:46:33,428 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:46:33" (1/1) ...
[2022-02-09 19:46:33,429 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:46:33" (1/1) ...
[2022-02-09 19:46:33,430 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:46:33" (1/1) ...
[2022-02-09 19:46:33,433 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:46:33" (1/1) ...
[2022-02-09 19:46:33,435 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:46:33" (1/1) ...
[2022-02-09 19:46:33,435 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:46:33" (1/1) ...
[2022-02-09 19:46:33,436 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-09 19:46:33,437 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-09 19:46:33,437 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-02-09 19:46:33,437 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-02-09 19:46:33,438 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:46:33" (1/1) ...
[2022-02-09 19:46:33,444 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 19:46:33,450 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:46:33,460 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)
[2022-02-09 19:46:33,461 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
[2022-02-09 19:46:33,486 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2022-02-09 19:46:33,486 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-02-09 19:46:33,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-02-09 19:46:33,486 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2022-02-09 19:46:33,486 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-02-09 19:46:33,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-02-09 19:46:33,487 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-02-09 19:46:33,487 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-09 19:46:33,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-09 19:46:33,487 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration
[2022-02-09 19:46:33,487 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2022-02-09 19:46:33,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2022-02-09 19:46:33,487 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-09 19:46:33,526 INFO  L234             CfgBuilder]: Building ICFG
[2022-02-09 19:46:33,527 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-09 19:46:33,586 INFO  L275             CfgBuilder]: Performing block encoding
[2022-02-09 19:46:33,595 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-09 19:46:33,595 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-09 19:46:33,596 INFO  L202        PluginConnector]: Adding new model parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:46:33 BoogieIcfgContainer
[2022-02-09 19:46:33,597 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-09 19:46:33,598 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-09 19:46:33,598 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-02-09 19:46:33,600 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-02-09 19:46:33,600 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:46:33" (1/2) ...
[2022-02-09 19:46:33,601 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e46c5af and model type parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 07:46:33, skipping insertion in model container
[2022-02-09 19:46:33,601 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:46:33" (2/2) ...
[2022-02-09 19:46:33,602 INFO  L111   eAbstractionObserver]: Analyzing ICFG parray-copy.wvr.bpl
[2022-02-09 19:46:33,605 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-09 19:46:33,606 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-09 19:46:33,606 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-09 19:46:33,606 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-09 19:46:33,635 INFO  L148    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-02-09 19:46:33,672 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-02-09 19:46:33,672 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:46:33,679 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)
[2022-02-09 19:46:33,680 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
[2022-02-09 19:46:33,700 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-09 19:46:33,705 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2022-02-09 19:46:33,705 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-02-09 19:46:33,710 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 31 transitions, 86 flow
[2022-02-09 19:46:33,754 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 114 states, 113 states have (on average 2.7787610619469025) internal successors, (314), 113 states have internal predecessors, (314), 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)
[2022-02-09 19:46:33,815 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 214 transitions and produced 186 states.
[2022-02-09 19:46:33,816 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:46:33,820 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:46:33,820 INFO  L85        PathProgramCache]: Analyzing trace with hash -528330565, now seen corresponding path program 1 times
[2022-02-09 19:46:33,825 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:46:33,825 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602222436]
[2022-02-09 19:46:33,825 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:46:33,826 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:46:33,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:46:34,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 194 backedges. 60 proven. 123 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:46:34,205 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:46:34,205 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602222436]
[2022-02-09 19:46:34,206 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602222436] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:46:34,206 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833792007]
[2022-02-09 19:46:34,206 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:46:34,206 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:34,206 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:46:34,208 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)
[2022-02-09 19:46:34,209 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-02-09 19:46:34,279 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:46:34,280 INFO  L263         TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 24 conjunts are in the unsatisfiable core
[2022-02-09 19:46:34,286 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:46:34,709 INFO  L134       CoverageAnalysis]: Checked inductivity of 194 backedges. 73 proven. 110 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:46:34,709 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:46:35,174 INFO  L134       CoverageAnalysis]: Checked inductivity of 194 backedges. 105 proven. 85 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:46:35,174 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833792007] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:46:35,174 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:46:35,174 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 20] total 38
[2022-02-09 19:46:35,176 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581191761]
[2022-02-09 19:46:35,177 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:46:35,179 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 38 states
[2022-02-09 19:46:35,179 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:46:35,192 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants.
[2022-02-09 19:46:35,195 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=1046, Unknown=0, NotChecked=0, Total=1406
[2022-02-09 19:46:35,195 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:35,197 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:46:35,197 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 38 states, 38 states have (on average 3.236842105263158) internal successors, (123), 38 states have internal predecessors, (123), 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)
[2022-02-09 19:46:35,197 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:36,092 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 262 transitions and produced 240 states.
[2022-02-09 19:46:36,093 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:46:36,131 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-02-09 19:46:36,294 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2022-02-09 19:46:36,294 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:46:36,295 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:46:36,295 INFO  L85        PathProgramCache]: Analyzing trace with hash 672268579, now seen corresponding path program 2 times
[2022-02-09 19:46:36,295 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:46:36,295 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812779846]
[2022-02-09 19:46:36,295 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:46:36,295 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:46:36,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:46:36,621 INFO  L134       CoverageAnalysis]: Checked inductivity of 322 backedges. 123 proven. 195 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:46:36,621 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:46:36,621 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812779846]
[2022-02-09 19:46:36,621 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812779846] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:46:36,622 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522735681]
[2022-02-09 19:46:36,622 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-09 19:46:36,623 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:36,623 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:46:36,624 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)
[2022-02-09 19:46:36,627 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-02-09 19:46:36,692 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 19:46:36,692 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:46:36,694 INFO  L263         TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 30 conjunts are in the unsatisfiable core
[2022-02-09 19:46:36,699 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:46:37,008 INFO  L134       CoverageAnalysis]: Checked inductivity of 322 backedges. 123 proven. 191 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2022-02-09 19:46:37,008 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:46:37,383 INFO  L134       CoverageAnalysis]: Checked inductivity of 322 backedges. 123 proven. 195 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:46:37,384 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522735681] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:46:37,384 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:46:37,384 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 29] total 46
[2022-02-09 19:46:37,384 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089279512]
[2022-02-09 19:46:37,384 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:46:37,385 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 46 states
[2022-02-09 19:46:37,385 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:46:37,385 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants.
[2022-02-09 19:46:37,386 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=1722, Unknown=0, NotChecked=0, Total=2070
[2022-02-09 19:46:37,386 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:37,386 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:46:37,387 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 46 states, 46 states have (on average 2.891304347826087) internal successors, (133), 46 states have internal predecessors, (133), 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)
[2022-02-09 19:46:37,387 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:46:37,387 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:37,958 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 340 transitions and produced 306 states.
[2022-02-09 19:46:37,958 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:46:37,958 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:46:37,980 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-02-09 19:46:38,159 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:38,159 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:46:38,160 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:46:38,160 INFO  L85        PathProgramCache]: Analyzing trace with hash -624977193, now seen corresponding path program 3 times
[2022-02-09 19:46:38,160 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:46:38,160 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878992895]
[2022-02-09 19:46:38,160 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:46:38,160 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:46:38,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:46:38,550 INFO  L134       CoverageAnalysis]: Checked inductivity of 646 backedges. 181 proven. 454 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:46:38,550 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:46:38,550 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878992895]
[2022-02-09 19:46:38,550 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878992895] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:46:38,550 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648936352]
[2022-02-09 19:46:38,551 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 19:46:38,551 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:38,551 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:46:38,552 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)
[2022-02-09 19:46:38,553 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-02-09 19:46:38,904 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s)
[2022-02-09 19:46:38,904 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:46:38,908 INFO  L263         TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 42 conjunts are in the unsatisfiable core
[2022-02-09 19:46:38,910 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:46:39,371 INFO  L134       CoverageAnalysis]: Checked inductivity of 646 backedges. 204 proven. 431 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:46:39,371 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:46:40,042 INFO  L134       CoverageAnalysis]: Checked inductivity of 646 backedges. 311 proven. 331 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:46:40,043 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [648936352] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:46:40,043 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:46:40,043 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 38] total 66
[2022-02-09 19:46:40,043 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522516230]
[2022-02-09 19:46:40,043 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:46:40,044 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 66 states
[2022-02-09 19:46:40,044 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:46:40,044 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants.
[2022-02-09 19:46:40,046 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=853, Invalid=3437, Unknown=0, NotChecked=0, Total=4290
[2022-02-09 19:46:40,046 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:40,046 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:46:40,046 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 66 states, 66 states have (on average 2.772727272727273) internal successors, (183), 66 states have internal predecessors, (183), 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)
[2022-02-09 19:46:40,046 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:46:40,046 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:46:40,046 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:41,654 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 373 transitions and produced 342 states.
[2022-02-09 19:46:41,654 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:46:41,654 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:46:41,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:46:41,674 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-02-09 19:46:41,855 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:41,856 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:46:41,856 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:46:41,856 INFO  L85        PathProgramCache]: Analyzing trace with hash -619956443, now seen corresponding path program 4 times
[2022-02-09 19:46:41,856 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:46:41,857 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073047673]
[2022-02-09 19:46:41,857 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:46:41,857 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:46:41,900 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:46:42,369 INFO  L134       CoverageAnalysis]: Checked inductivity of 811 backedges. 326 proven. 479 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-02-09 19:46:42,370 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:46:42,370 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073047673]
[2022-02-09 19:46:42,370 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073047673] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:46:42,370 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617058307]
[2022-02-09 19:46:42,370 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-09 19:46:42,370 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:42,371 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:46:42,372 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:46:42,372 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-02-09 19:46:42,438 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-09 19:46:42,438 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:46:42,440 INFO  L263         TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 46 conjunts are in the unsatisfiable core
[2022-02-09 19:46:42,442 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:46:42,947 INFO  L134       CoverageAnalysis]: Checked inductivity of 811 backedges. 326 proven. 479 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-02-09 19:46:42,947 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:46:43,605 INFO  L134       CoverageAnalysis]: Checked inductivity of 811 backedges. 326 proven. 483 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-02-09 19:46:43,605 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [617058307] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:46:43,605 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:46:43,605 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 45] total 70
[2022-02-09 19:46:43,605 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151038718]
[2022-02-09 19:46:43,606 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:46:43,606 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 70 states
[2022-02-09 19:46:43,606 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:46:43,606 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants.
[2022-02-09 19:46:43,607 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=833, Invalid=3997, Unknown=0, NotChecked=0, Total=4830
[2022-02-09 19:46:43,607 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:43,608 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:46:43,608 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 70 states, 70 states have (on average 2.4714285714285715) internal successors, (173), 70 states have internal predecessors, (173), 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)
[2022-02-09 19:46:43,608 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:46:43,608 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:46:43,608 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:46:43,608 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:44,522 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 465 transitions and produced 418 states.
[2022-02-09 19:46:44,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:46:44,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:46:44,523 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:46:44,523 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:46:44,539 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-02-09 19:46:44,723 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:44,724 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:46:44,724 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:46:44,724 INFO  L85        PathProgramCache]: Analyzing trace with hash 437384213, now seen corresponding path program 5 times
[2022-02-09 19:46:44,724 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:46:44,724 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110287594]
[2022-02-09 19:46:44,724 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:46:44,724 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:46:44,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:46:45,422 INFO  L134       CoverageAnalysis]: Checked inductivity of 1411 backedges. 416 proven. 984 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:46:45,422 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:46:45,422 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110287594]
[2022-02-09 19:46:45,422 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110287594] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:46:45,423 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462637492]
[2022-02-09 19:46:45,423 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-09 19:46:45,423 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:45,423 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:46:45,424 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:46:45,426 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-02-09 19:46:46,448 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s)
[2022-02-09 19:46:46,448 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:46:46,454 INFO  L263         TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 59 conjunts are in the unsatisfiable core
[2022-02-09 19:46:46,457 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:46:47,188 INFO  L134       CoverageAnalysis]: Checked inductivity of 1411 backedges. 449 proven. 951 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:46:47,188 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:46:48,315 INFO  L134       CoverageAnalysis]: Checked inductivity of 1411 backedges. 761 proven. 646 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:46:48,315 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462637492] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:46:48,315 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:46:48,316 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 55] total 99
[2022-02-09 19:46:48,316 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443462623]
[2022-02-09 19:46:48,316 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:46:48,316 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 99 states
[2022-02-09 19:46:48,316 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:46:48,317 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants.
[2022-02-09 19:46:48,319 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1931, Invalid=7771, Unknown=0, NotChecked=0, Total=9702
[2022-02-09 19:46:48,319 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:48,319 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:46:48,320 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 99 states, 99 states have (on average 2.515151515151515) internal successors, (249), 99 states have internal predecessors, (249), 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)
[2022-02-09 19:46:48,320 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:46:48,320 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:46:48,320 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:46:48,320 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:46:48,320 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:51,350 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 528 transitions and produced 481 states.
[2022-02-09 19:46:51,350 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:46:51,350 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:46:51,350 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:46:51,350 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:46:51,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:46:51,371 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-02-09 19:46:51,555 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:51,557 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:46:51,557 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:46:51,557 INFO  L85        PathProgramCache]: Analyzing trace with hash -1576705897, now seen corresponding path program 6 times
[2022-02-09 19:46:51,557 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:46:51,557 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369122846]
[2022-02-09 19:46:51,557 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:46:51,557 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:46:51,586 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:46:52,578 INFO  L134       CoverageAnalysis]: Checked inductivity of 1994 backedges. 963 proven. 1027 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:46:52,578 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:46:52,578 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369122846]
[2022-02-09 19:46:52,578 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369122846] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:46:52,578 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124507053]
[2022-02-09 19:46:52,578 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-09 19:46:52,578 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:52,579 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:46:52,579 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:46:52,580 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-02-09 19:46:53,577 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s)
[2022-02-09 19:46:53,578 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:46:53,585 INFO  L263         TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 83 conjunts are in the unsatisfiable core
[2022-02-09 19:46:53,588 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:46:54,487 INFO  L134       CoverageAnalysis]: Checked inductivity of 1994 backedges. 963 proven. 1027 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:46:54,487 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:46:55,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 1994 backedges. 965 proven. 1029 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 19:46:55,951 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124507053] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:46:55,951 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:46:55,951 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 67, 71] total 115
[2022-02-09 19:46:55,951 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091378984]
[2022-02-09 19:46:55,951 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:46:55,952 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 115 states
[2022-02-09 19:46:55,952 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:46:55,952 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants.
[2022-02-09 19:46:55,955 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=2054, Invalid=11056, Unknown=0, NotChecked=0, Total=13110
[2022-02-09 19:46:55,955 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:55,955 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:46:55,955 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 115 states, 115 states have (on average 2.356521739130435) internal successors, (271), 115 states have internal predecessors, (271), 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)
[2022-02-09 19:46:55,955 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:46:55,955 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:46:55,955 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:46:55,955 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:46:55,955 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:46:55,955 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:46:58,202 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 653 transitions and produced 584 states.
[2022-02-09 19:46:58,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:46:58,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:46:58,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:46:58,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:46:58,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:46:58,204 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:46:58,224 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2022-02-09 19:46:58,404 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:58,406 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:46:58,406 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:46:58,407 INFO  L85        PathProgramCache]: Analyzing trace with hash 844383265, now seen corresponding path program 7 times
[2022-02-09 19:46:58,407 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:46:58,407 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025137591]
[2022-02-09 19:46:58,407 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:46:58,407 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:46:58,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:46:59,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 3101 backedges. 886 proven. 2204 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:46:59,721 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:46:59,721 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025137591]
[2022-02-09 19:46:59,721 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025137591] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:46:59,723 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203643926]
[2022-02-09 19:46:59,723 INFO  L93    rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-09 19:46:59,723 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:46:59,723 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:46:59,724 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:46:59,725 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-02-09 19:46:59,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:46:59,824 INFO  L263         TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 85 conjunts are in the unsatisfiable core
[2022-02-09 19:46:59,826 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:47:01,194 INFO  L134       CoverageAnalysis]: Checked inductivity of 3101 backedges. 935 proven. 2155 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:47:01,194 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:47:03,105 INFO  L134       CoverageAnalysis]: Checked inductivity of 3101 backedges. 1630 proven. 1467 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:47:03,105 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [203643926] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:47:03,105 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:47:03,105 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75, 81] total 141
[2022-02-09 19:47:03,105 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332662665]
[2022-02-09 19:47:03,105 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:47:03,106 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 141 states
[2022-02-09 19:47:03,106 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:47:03,107 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants.
[2022-02-09 19:47:03,110 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3799, Invalid=15941, Unknown=0, NotChecked=0, Total=19740
[2022-02-09 19:47:03,110 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:47:03,110 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:47:03,111 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 141 states, 141 states have (on average 2.3617021276595747) internal successors, (333), 141 states have internal predecessors, (333), 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)
[2022-02-09 19:47:03,111 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:47:03,111 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:47:03,111 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:47:03,111 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:47:03,111 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:47:03,111 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:47:03,111 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:47:08,423 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 716 transitions and produced 653 states.
[2022-02-09 19:47:08,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:47:08,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:47:08,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:47:08,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:47:08,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:47:08,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:47:08,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:47:08,441 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2022-02-09 19:47:08,627 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2022-02-09 19:47:08,627 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:47:08,627 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:47:08,628 INFO  L85        PathProgramCache]: Analyzing trace with hash 409041315, now seen corresponding path program 8 times
[2022-02-09 19:47:08,628 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:47:08,628 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358707253]
[2022-02-09 19:47:08,628 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:47:08,628 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:47:08,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:47:10,531 INFO  L134       CoverageAnalysis]: Checked inductivity of 3970 backedges. 1938 proven. 2028 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:47:10,531 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:47:10,531 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358707253]
[2022-02-09 19:47:10,532 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358707253] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:47:10,532 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571885736]
[2022-02-09 19:47:10,532 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-09 19:47:10,532 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:47:10,532 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:47:10,533 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:47:10,533 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2022-02-09 19:47:10,652 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 19:47:10,652 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:47:10,656 INFO  L263         TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 92 conjunts are in the unsatisfiable core
[2022-02-09 19:47:10,659 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:47:11,949 INFO  L134       CoverageAnalysis]: Checked inductivity of 3970 backedges. 1932 proven. 2020 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2022-02-09 19:47:11,949 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:47:13,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 3970 backedges. 1932 proven. 2024 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2022-02-09 19:47:13,620 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [571885736] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:47:13,620 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:47:13,620 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 87, 91] total 146
[2022-02-09 19:47:13,620 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778454485]
[2022-02-09 19:47:13,620 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:47:13,621 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 146 states
[2022-02-09 19:47:13,621 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:47:13,622 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants.
[2022-02-09 19:47:13,624 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3426, Invalid=17744, Unknown=0, NotChecked=0, Total=21170
[2022-02-09 19:47:13,624 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:47:13,624 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:47:13,624 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 146 states, 146 states have (on average 2.287671232876712) internal successors, (334), 146 states have internal predecessors, (334), 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)
[2022-02-09 19:47:13,624 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:47:13,624 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:47:13,624 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:47:13,625 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:47:13,625 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:47:13,625 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:47:13,625 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:47:13,625 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:47:16,379 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 829 transitions and produced 744 states.
[2022-02-09 19:47:16,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:47:16,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:47:16,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:47:16,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:47:16,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:47:16,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:47:16,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:47:16,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:47:16,396 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2022-02-09 19:47:16,580 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:47:16,581 INFO  L402      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:47:16,581 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:47:16,582 INFO  L85        PathProgramCache]: Analyzing trace with hash -1513644243, now seen corresponding path program 9 times
[2022-02-09 19:47:16,582 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:47:16,582 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714382664]
[2022-02-09 19:47:16,582 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:47:16,582 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:47:16,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:47:18,968 INFO  L134       CoverageAnalysis]: Checked inductivity of 5467 backedges. 1495 proven. 3961 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:47:18,969 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:47:18,969 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714382664]
[2022-02-09 19:47:18,969 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714382664] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:47:18,969 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324666512]
[2022-02-09 19:47:18,969 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 19:47:18,969 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:47:18,969 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:47:18,970 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:47:18,970 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2022-02-09 19:47:27,794 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 57 check-sat command(s)
[2022-02-09 19:47:27,794 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:47:27,821 INFO  L263         TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 111 conjunts are in the unsatisfiable core
[2022-02-09 19:47:27,824 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:47:29,779 INFO  L134       CoverageAnalysis]: Checked inductivity of 5467 backedges. 1554 proven. 3902 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:47:29,779 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:47:32,269 INFO  L134       CoverageAnalysis]: Checked inductivity of 5467 backedges. 2867 proven. 2596 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:47:32,269 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [324666512] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:47:32,269 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:47:32,269 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101, 107] total 177
[2022-02-09 19:47:32,269 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476179023]
[2022-02-09 19:47:32,269 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:47:32,270 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 177 states
[2022-02-09 19:47:32,270 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:47:32,271 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 177 interpolants.
[2022-02-09 19:47:32,272 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5857, Invalid=25295, Unknown=0, NotChecked=0, Total=31152
[2022-02-09 19:47:32,272 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:47:32,273 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:47:32,273 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 177 states, 177 states have (on average 2.288135593220339) internal successors, (405), 177 states have internal predecessors, (405), 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)
[2022-02-09 19:47:32,273 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:47:32,273 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:47:32,273 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:47:32,273 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:47:32,273 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:47:32,273 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:47:32,273 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:47:32,273 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:47:32,273 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:47:40,399 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 892 transitions and produced 807 states.
[2022-02-09 19:47:40,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:47:40,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:47:40,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:47:40,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:47:40,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:47:40,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:47:40,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:47:40,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:47:40,400 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:47:40,425 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2022-02-09 19:47:40,601 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8
[2022-02-09 19:47:40,601 INFO  L402      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:47:40,601 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:47:40,601 INFO  L85        PathProgramCache]: Analyzing trace with hash 1910267311, now seen corresponding path program 10 times
[2022-02-09 19:47:40,601 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:47:40,601 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362342076]
[2022-02-09 19:47:40,602 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:47:40,602 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:47:40,674 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:47:43,673 INFO  L134       CoverageAnalysis]: Checked inductivity of 6622 backedges. 3251 proven. 3367 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:47:43,673 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:47:43,673 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362342076]
[2022-02-09 19:47:43,673 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362342076] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:47:43,673 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016514673]
[2022-02-09 19:47:43,673 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-09 19:47:43,673 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:47:43,673 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:47:43,674 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:47:43,675 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2022-02-09 19:47:43,835 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-09 19:47:43,835 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:47:43,840 INFO  L263         TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 118 conjunts are in the unsatisfiable core
[2022-02-09 19:47:43,844 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:47:45,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 6622 backedges. 3245 proven. 3359 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2022-02-09 19:47:45,670 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:47:47,945 INFO  L134       CoverageAnalysis]: Checked inductivity of 6622 backedges. 3245 proven. 3363 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2022-02-09 19:47:47,945 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016514673] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:47:47,945 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:47:47,945 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 113, 117] total 182
[2022-02-09 19:47:47,945 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861573015]
[2022-02-09 19:47:47,945 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:47:47,946 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 182 states
[2022-02-09 19:47:47,946 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:47:47,947 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 182 interpolants.
[2022-02-09 19:47:47,948 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5186, Invalid=27756, Unknown=0, NotChecked=0, Total=32942
[2022-02-09 19:47:47,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:47:47,948 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:47:47,949 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 182 states, 182 states have (on average 2.230769230769231) internal successors, (406), 182 states have internal predecessors, (406), 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)
[2022-02-09 19:47:47,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:47:47,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:47:47,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:47:47,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:47:47,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:47:47,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:47:47,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:47:47,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:47:47,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:47:47,949 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:47:51,874 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 984 transitions and produced 883 states.
[2022-02-09 19:47:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:47:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:47:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:47:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:47:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:47:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:47:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:47:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:47:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:47:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:47:51,892 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2022-02-09 19:47:52,081 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2022-02-09 19:47:52,081 INFO  L402      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:47:52,082 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:47:52,082 INFO  L85        PathProgramCache]: Analyzing trace with hash -583758177, now seen corresponding path program 11 times
[2022-02-09 19:47:52,082 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:47:52,082 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792286156]
[2022-02-09 19:47:52,082 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:47:52,082 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:47:52,156 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:47:55,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 8098 backedges. 2090 proven. 5997 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:47:55,583 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:47:55,583 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792286156]
[2022-02-09 19:47:55,583 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792286156] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:47:55,584 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489572501]
[2022-02-09 19:47:55,584 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-09 19:47:55,584 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:47:55,584 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:47:55,585 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:47:55,585 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2022-02-09 19:54:50,836 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s)
[2022-02-09 19:54:50,836 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:54:51,177 INFO  L263         TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 139 conjunts are in the unsatisfiable core
[2022-02-09 19:54:51,181 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:54:53,770 INFO  L134       CoverageAnalysis]: Checked inductivity of 8098 backedges. 1958 proven. 6129 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:54:53,770 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:54:56,647 INFO  L134       CoverageAnalysis]: Checked inductivity of 8098 backedges. 4037 proven. 4057 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:54:56,647 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [489572501] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:54:56,647 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:54:56,648 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [124, 124, 130] total 202
[2022-02-09 19:54:56,648 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929964119]
[2022-02-09 19:54:56,648 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:54:56,648 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 202 states
[2022-02-09 19:54:56,648 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:54:56,650 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants.
[2022-02-09 19:54:56,652 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7384, Invalid=33218, Unknown=0, NotChecked=0, Total=40602
[2022-02-09 19:54:56,652 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:54:56,652 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:54:56,653 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 202 states, 202 states have (on average 2.232673267326733) internal successors, (451), 202 states have internal predecessors, (451), 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)
[2022-02-09 19:54:56,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:54:56,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:54:56,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:54:56,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:54:56,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:54:56,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:54:56,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:54:56,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:54:56,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:54:56,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:54:56,653 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:55:08,061 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1017 transitions and produced 919 states.
[2022-02-09 19:55:08,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:55:08,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:55:08,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:55:08,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:55:08,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:55:08,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:55:08,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:55:08,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:55:08,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:55:08,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:55:08,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 19:55:08,171 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2022-02-09 19:55:08,263 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2022-02-09 19:55:08,263 INFO  L402      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:55:08,263 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:55:08,263 INFO  L85        PathProgramCache]: Analyzing trace with hash -1877644051, now seen corresponding path program 12 times
[2022-02-09 19:55:08,263 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:55:08,264 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087401876]
[2022-02-09 19:55:08,264 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:55:08,264 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:55:08,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:55:12,217 INFO  L134       CoverageAnalysis]: Checked inductivity of 8723 backedges. 4098 proven. 4619 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-02-09 19:55:12,217 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:55:12,217 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087401876]
[2022-02-09 19:55:12,217 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087401876] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:55:12,217 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36788114]
[2022-02-09 19:55:12,217 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-09 19:55:12,217 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:55:12,217 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:55:12,218 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:55:12,219 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2022-02-09 19:55:44,511 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 68 check-sat command(s)
[2022-02-09 19:55:44,511 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:55:44,558 INFO  L263         TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 154 conjunts are in the unsatisfiable core
[2022-02-09 19:55:44,562 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:55:54,130 INFO  L134       CoverageAnalysis]: Checked inductivity of 8723 backedges. 3850 proven. 4873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 19:55:54,130 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:55:58,622 INFO  L134       CoverageAnalysis]: Checked inductivity of 8723 backedges. 4100 proven. 4623 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 19:55:58,622 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [36788114] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:55:58,622 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:55:58,623 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [133, 141, 140] total 315
[2022-02-09 19:55:58,623 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375118333]
[2022-02-09 19:55:58,623 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:55:58,624 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 315 states
[2022-02-09 19:55:58,624 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:55:58,625 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 315 interpolants.
[2022-02-09 19:55:58,629 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12030, Invalid=86880, Unknown=0, NotChecked=0, Total=98910
[2022-02-09 19:55:58,629 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:55:58,629 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:55:58,629 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 315 states, 315 states have (on average 2.073015873015873) internal successors, (653), 315 states have internal predecessors, (653), 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)
[2022-02-09 19:55:58,629 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:55:58,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:55:58,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:55:58,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:55:58,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:55:58,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:55:58,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:55:58,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:55:58,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:55:58,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:55:58,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 19:55:58,630 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:56:05,468 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1109 transitions and produced 995 states.
[2022-02-09 19:56:05,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:56:05,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:56:05,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:56:05,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:56:05,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:56:05,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:56:05,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:56:05,469 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:56:05,469 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:56:05,469 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:56:05,469 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 19:56:05,469 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. 
[2022-02-09 19:56:05,499 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2022-02-09 19:56:05,669 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2022-02-09 19:56:05,670 INFO  L402      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:56:05,670 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:56:05,670 INFO  L85        PathProgramCache]: Analyzing trace with hash -727075363, now seen corresponding path program 13 times
[2022-02-09 19:56:05,670 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:56:05,670 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354901879]
[2022-02-09 19:56:05,670 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:56:05,670 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:56:05,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:56:10,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 10427 backedges. 2785 proven. 7631 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:56:10,117 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:56:10,117 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354901879]
[2022-02-09 19:56:10,117 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354901879] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:56:10,118 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046764311]
[2022-02-09 19:56:10,118 INFO  L93    rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-09 19:56:10,118 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:56:10,118 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:56:10,119 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:56:10,119 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2022-02-09 19:56:10,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:56:10,329 INFO  L263         TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 151 conjunts are in the unsatisfiable core
[2022-02-09 19:56:10,333 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:56:13,549 INFO  L134       CoverageAnalysis]: Checked inductivity of 10427 backedges. 2864 proven. 7552 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:56:13,550 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:56:17,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 10427 backedges. 5407 proven. 5016 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:56:17,306 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046764311] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:56:17,313 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:56:17,313 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [141, 141, 147] total 237
[2022-02-09 19:56:17,313 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747843898]
[2022-02-09 19:56:17,313 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:56:17,314 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 237 states
[2022-02-09 19:56:17,314 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:56:17,315 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 237 interpolants.
[2022-02-09 19:56:17,318 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10372, Invalid=45560, Unknown=0, NotChecked=0, Total=55932
[2022-02-09 19:56:17,318 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:56:17,318 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:56:17,319 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 237 states, 237 states have (on average 2.2151898734177213) internal successors, (525), 237 states have internal predecessors, (525), 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)
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 19:56:17,327 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. 
[2022-02-09 19:56:17,328 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:56:31,675 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1172 transitions and produced 1058 states.
[2022-02-09 19:56:31,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:56:31,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:56:31,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:56:31,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:56:31,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:56:31,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:56:31,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:56:31,677 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:56:31,677 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:56:31,677 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:56:31,677 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 19:56:31,677 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. 
[2022-02-09 19:56:31,683 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. 
[2022-02-09 19:56:31,702 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2022-02-09 19:56:31,884 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:56:31,884 INFO  L402      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:56:31,885 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:56:31,885 INFO  L85        PathProgramCache]: Analyzing trace with hash 1267169375, now seen corresponding path program 14 times
[2022-02-09 19:56:31,885 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:56:31,885 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063562280]
[2022-02-09 19:56:31,885 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:56:31,885 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:56:32,005 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:56:37,175 INFO  L134       CoverageAnalysis]: Checked inductivity of 12022 backedges. 5931 proven. 6087 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:56:37,175 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:56:37,175 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063562280]
[2022-02-09 19:56:37,175 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063562280] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:56:37,175 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945010174]
[2022-02-09 19:56:37,175 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-09 19:56:37,175 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:56:37,176 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:56:37,177 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:56:37,194 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2022-02-09 19:56:37,443 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 19:56:37,443 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:56:37,450 INFO  L263         TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 158 conjunts are in the unsatisfiable core
[2022-02-09 19:56:37,456 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:56:40,285 INFO  L134       CoverageAnalysis]: Checked inductivity of 12022 backedges. 5925 proven. 6079 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2022-02-09 19:56:40,285 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:56:43,932 INFO  L134       CoverageAnalysis]: Checked inductivity of 12022 backedges. 5925 proven. 6083 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2022-02-09 19:56:43,932 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945010174] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:56:43,932 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:56:43,933 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [157, 153, 157] total 242
[2022-02-09 19:56:43,933 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350946601]
[2022-02-09 19:56:43,933 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:56:43,933 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 242 states
[2022-02-09 19:56:43,933 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:56:43,935 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 242 interpolants.
[2022-02-09 19:56:43,937 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9111, Invalid=49211, Unknown=0, NotChecked=0, Total=58322
[2022-02-09 19:56:43,937 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:56:43,937 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:56:43,937 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 242 states, 242 states have (on average 2.1735537190082646) internal successors, (526), 242 states have internal predecessors, (526), 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)
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 19:56:43,937 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. 
[2022-02-09 19:56:43,938 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. 
[2022-02-09 19:56:43,938 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:56:50,627 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1264 transitions and produced 1134 states.
[2022-02-09 19:56:50,627 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:56:50,627 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:56:50,627 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:56:50,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:56:50,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:56:50,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:56:50,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:56:50,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:56:50,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:56:50,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:56:50,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 19:56:50,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. 
[2022-02-09 19:56:50,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. 
[2022-02-09 19:56:50,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 239 states. 
[2022-02-09 19:56:50,646 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2022-02-09 19:56:50,828 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:56:50,829 INFO  L402      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:56:50,829 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:56:50,829 INFO  L85        PathProgramCache]: Analyzing trace with hash -775622321, now seen corresponding path program 15 times
[2022-02-09 19:56:50,829 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:56:50,829 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789448999]
[2022-02-09 19:56:50,829 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:56:50,829 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:56:50,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:56:56,915 INFO  L134       CoverageAnalysis]: Checked inductivity of 13978 backedges. 3580 proven. 10387 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:56:56,915 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:56:56,916 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789448999]
[2022-02-09 19:56:56,916 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789448999] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:56:56,916 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337049146]
[2022-02-09 19:56:56,916 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 19:56:56,916 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:56:56,916 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:56:56,918 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:56:56,918 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2022-02-09 19:57:53,074 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 87 check-sat command(s)
[2022-02-09 19:57:53,075 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:57:53,155 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 194 conjunts are in the unsatisfiable core
[2022-02-09 19:57:53,161 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:57:57,222 INFO  L134       CoverageAnalysis]: Checked inductivity of 13978 backedges. 3710 proven. 10257 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:57:57,222 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:58:02,602 INFO  L134       CoverageAnalysis]: Checked inductivity of 13978 backedges. 6977 proven. 6997 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2022-02-09 19:58:02,602 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337049146] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:58:02,602 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:58:02,602 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [164, 166, 173] total 277
[2022-02-09 19:58:02,602 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871929384]
[2022-02-09 19:58:02,602 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:58:02,603 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 277 states
[2022-02-09 19:58:02,603 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:58:02,605 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 277 interpolants.
[2022-02-09 19:58:02,608 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13553, Invalid=62899, Unknown=0, NotChecked=0, Total=76452
[2022-02-09 19:58:02,608 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:58:02,608 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:58:02,609 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 277 states, 277 states have (on average 2.155234657039711) internal successors, (597), 277 states have internal predecessors, (597), 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)
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 239 states. 
[2022-02-09 19:58:02,609 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:58:48,660 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1297 transitions and produced 1170 states.
[2022-02-09 19:58:48,660 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:58:48,660 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. 
[2022-02-09 19:58:48,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 239 states. 
[2022-02-09 19:58:48,662 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 598 states. 
[2022-02-09 19:58:48,704 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2022-02-09 19:58:48,875 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2022-02-09 19:58:48,875 INFO  L402      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:58:48,876 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:58:48,876 INFO  L85        PathProgramCache]: Analyzing trace with hash -1968415843, now seen corresponding path program 16 times
[2022-02-09 19:58:48,876 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:58:48,876 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005420082]
[2022-02-09 19:58:48,876 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:58:48,876 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:58:48,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:58:55,094 INFO  L134       CoverageAnalysis]: Checked inductivity of 14803 backedges. 7058 proven. 7739 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-02-09 19:58:55,094 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:58:55,094 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005420082]
[2022-02-09 19:58:55,094 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005420082] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:58:55,094 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212199018]
[2022-02-09 19:58:55,094 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-09 19:58:55,094 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:58:55,094 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:58:55,095 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:58:55,096 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2022-02-09 19:58:55,364 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-09 19:58:55,364 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 19:58:55,372 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 178 conjunts are in the unsatisfiable core
[2022-02-09 19:58:55,377 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 19:58:58,806 INFO  L134       CoverageAnalysis]: Checked inductivity of 14803 backedges. 7058 proven. 7739 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-02-09 19:58:58,806 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 19:59:02,994 INFO  L134       CoverageAnalysis]: Checked inductivity of 14803 backedges. 7058 proven. 7743 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-02-09 19:59:02,995 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212199018] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 19:59:02,995 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 19:59:02,995 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [173, 173, 177] total 268
[2022-02-09 19:59:02,995 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326307430]
[2022-02-09 19:59:02,995 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 19:59:02,996 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 268 states
[2022-02-09 19:59:02,996 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 19:59:02,997 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 268 interpolants.
[2022-02-09 19:59:03,000 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11228, Invalid=60328, Unknown=0, NotChecked=0, Total=71556
[2022-02-09 19:59:03,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:59:03,000 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 19:59:03,000 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 268 states, 268 states have (on average 2.123134328358209) internal successors, (569), 268 states have internal predecessors, (569), 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)
[2022-02-09 19:59:03,000 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:59:03,000 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:59:03,000 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 239 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 598 states. 
[2022-02-09 19:59:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 19:59:11,118 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 1389 transitions and produced 1246 states.
[2022-02-09 19:59:11,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 19:59:11,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 19:59:11,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 19:59:11,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 19:59:11,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 19:59:11,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 19:59:11,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 19:59:11,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 19:59:11,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 19:59:11,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 19:59:11,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 19:59:11,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. 
[2022-02-09 19:59:11,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. 
[2022-02-09 19:59:11,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 239 states. 
[2022-02-09 19:59:11,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 598 states. 
[2022-02-09 19:59:11,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 269 states. 
[2022-02-09 19:59:11,137 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2022-02-09 19:59:11,319 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2022-02-09 19:59:11,322 INFO  L402      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-09 19:59:11,322 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 19:59:11,322 INFO  L85        PathProgramCache]: Analyzing trace with hash 1922034829, now seen corresponding path program 17 times
[2022-02-09 19:59:11,322 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 19:59:11,322 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122108300]
[2022-02-09 19:59:11,322 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 19:59:11,322 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 19:59:11,457 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 19:59:18,175 INFO  L134       CoverageAnalysis]: Checked inductivity of 16987 backedges. 4475 proven. 12501 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-02-09 19:59:18,176 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 19:59:18,176 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122108300]
[2022-02-09 19:59:18,176 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122108300] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 19:59:18,176 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305287860]
[2022-02-09 19:59:18,176 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-09 19:59:18,176 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 19:59:18,176 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 19:59:18,177 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 19:59:18,178 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
Received shutdown request...
[2022-02-09 20:00:15,419 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-09 20:00:15,419 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-09 20:00:15,432 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-09 20:00:16,455 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
[2022-02-09 20:00:16,455 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0
[2022-02-09 20:00:16,632 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forcibly destroying the process
[2022-02-09 20:00:16,647 WARN  L317   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-02-09 20:00:16,647 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2022-02-09 20:00:16,647 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [181] total 181
[2022-02-09 20:00:16,647 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066391295]
[2022-02-09 20:00:16,647 INFO  L85    oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2022-02-09 20:00:16,647 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 181 states
[2022-02-09 20:00:16,647 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 20:00:16,649 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants.
[2022-02-09 20:00:16,651 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6001, Invalid=26579, Unknown=0, NotChecked=0, Total=32580
[2022-02-09 20:00:16,651 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 20:00:16,651 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-09 20:00:16,652 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 181 states, 181 states have (on average 2.1270718232044197) internal successors, (385), 181 states have internal predecessors, (385), 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)
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 149 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 179 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 263 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 239 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 598 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 269 states. 
[2022-02-09 20:00:16,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-09 20:00:16,653 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 137
[2022-02-09 20:00:16,653 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2022-02-09 20:00:16,655 WARN  L594      AbstractCegarLoop]: Verification canceled: while executing Executor.
[2022-02-09 20:00:16,657 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining)
[2022-02-09 20:00:16,657 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining)
[2022-02-09 20:00:16,657 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining)
[2022-02-09 20:00:16,657 INFO  L764   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining)
[2022-02-09 20:00:16,661 INFO  L732         BasicCegarLoop]: Path program histogram: [17]
[2022-02-09 20:00:16,663 INFO  L230   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-09 20:00:16,663 INFO  L180   ceAbstractionStarter]: Computing trace abstraction results
[2022-02-09 20:00:16,665 INFO  L202        PluginConnector]: Adding new model parray-copy.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 08:00:16 BasicIcfg
[2022-02-09 20:00:16,665 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-09 20:00:16,665 INFO  L158              Benchmark]: Toolchain (without parser) took 823261.29ms. Allocated memory was 184.5MB in the beginning and 1.1GB in the end (delta: 902.8MB). Free memory was 142.7MB in the beginning and 345.6MB in the end (delta: -202.9MB). Peak memory consumption was 700.9MB. Max. memory is 8.0GB.
[2022-02-09 20:00:16,665 INFO  L158              Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 184.5MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-09 20:00:16,665 INFO  L158              Benchmark]: Boogie Procedure Inliner took 17.41ms. Allocated memory is still 184.5MB. Free memory was 142.7MB in the beginning and 141.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-09 20:00:16,666 INFO  L158              Benchmark]: Boogie Preprocessor took 12.73ms. Allocated memory is still 184.5MB. Free memory was 141.1MB in the beginning and 140.1MB in the end (delta: 930.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-09 20:00:16,666 INFO  L158              Benchmark]: RCFGBuilder took 160.16ms. Allocated memory is still 184.5MB. Free memory was 140.1MB in the beginning and 131.0MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
[2022-02-09 20:00:16,666 INFO  L158              Benchmark]: TraceAbstraction took 823066.99ms. Allocated memory was 184.5MB in the beginning and 1.1GB in the end (delta: 902.8MB). Free memory was 130.5MB in the beginning and 345.6MB in the end (delta: -215.1MB). Peak memory consumption was 688.3MB. Max. memory is 8.0GB.
[2022-02-09 20:00:16,667 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * Boogie PL CUP Parser took 0.09ms. Allocated memory is still 184.5MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 17.41ms. Allocated memory is still 184.5MB. Free memory was 142.7MB in the beginning and 141.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 12.73ms. Allocated memory is still 184.5MB. Free memory was 141.1MB in the beginning and 140.1MB in the end (delta: 930.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
 * RCFGBuilder took 160.16ms. Allocated memory is still 184.5MB. Free memory was 140.1MB in the beginning and 131.0MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
 * TraceAbstraction took 823066.99ms. Allocated memory was 184.5MB in the beginning and 1.1GB in the end (delta: 902.8MB). Free memory was 130.5MB in the beginning and 345.6MB in the end (delta: -215.1MB). Peak memory consumption was 688.3MB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Independence relation benchmarks
    ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction)
    Unable to prove that assertion always holds Cancelled while executing Executor.
  - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor.
  - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor.
  - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor.
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 7 procedures, 44 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 823.0s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 17, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 122.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, InterpolantAutomatonStates: 3092, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 515.8s SatisfiabilityAnalysisTime, 120.5s InterpolantComputationTime, 7286 NumberOfCodeBlocks, 7286 NumberOfCodeBlocksAsserted, 392 NumberOfCheckSat, 10683 ConstructedInterpolants, 0 QuantifiedInterpolants, 67149 SizeOfPredicates, 98 NumberOfNonLiveVariables, 10082 ConjunctsInSsa, 1664 ConjunctsInUnsatCore, 49 InterpolantComputations, 0 PerfectInterpolantSequences, 120979/294754 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown