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


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


This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
[2022-02-16 10:46:01,775 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-02-16 10:46:01,858 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2022-02-16 10:46:01,861 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-16 10:46:01,862 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-02-16 10:46:01,863 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
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[2022-02-16 10:46:01,869 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-16 10:46:01,870 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2022-02-16 10:46:01,872 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-02-16 10:46:01,873 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf
[2022-02-16 10:46:01,897 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-02-16 10:46:01,898 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-16 10:46:01,898 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-16 10:46:01,899 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-16 10:46:01,899 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-16 10:46:01,899 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-16 10:46:01,900 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-16 10:46:01,900 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-02-16 10:46:01,900 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-02-16 10:46:01,900 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-16 10:46:01,901 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-02-16 10:46:01,901 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-02-16 10:46:01,901 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-02-16 10:46:01,901 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-02-16 10:46:01,901 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-02-16 10:46:01,901 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-16 10:46:01,902 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-02-16 10:46:01,902 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-02-16 10:46:01,902 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-02-16 10:46:01,902 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-02-16 10:46:01,902 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-02-16 10:46:01,902 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-16 10:46:01,902 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-02-16 10:46:01,902 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-02-16 10:46:01,902 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-02-16 10:46:01,903 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-16 10:46:01,903 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-16 10:46:01,903 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-02-16 10:46:01,903 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-02-16 10:46:01,903 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-16 10:46:01,903 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-02-16 10:46:01,903 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-16 10:46:01,903 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-02-16 10:46:01,904 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-02-16 10:46:01,904 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-16 10:46:01,904 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS
[2022-02-16 10:46:01,904 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-16 10:46:02,114 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-16 10:46:02,133 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-16 10:46:02,135 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-16 10:46:02,136 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-02-16 10:46:02,137 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-02-16 10:46:02,138 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl
[2022-02-16 10:46:02,138 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl'
[2022-02-16 10:46:02,163 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-16 10:46:02,165 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-16 10:46:02,166 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-16 10:46:02,166 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-16 10:46:02,166 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-16 10:46:02,177 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:46:02" (1/1) ...
[2022-02-16 10:46:02,184 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:46:02" (1/1) ...
[2022-02-16 10:46:02,190 INFO  L137                Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-02-16 10:46:02,192 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-16 10:46:02,193 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-16 10:46:02,193 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-16 10:46:02,193 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-02-16 10:46:02,200 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:46:02" (1/1) ...
[2022-02-16 10:46:02,200 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:46:02" (1/1) ...
[2022-02-16 10:46:02,202 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:46:02" (1/1) ...
[2022-02-16 10:46:02,202 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:46:02" (1/1) ...
[2022-02-16 10:46:02,205 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:46:02" (1/1) ...
[2022-02-16 10:46:02,208 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:46:02" (1/1) ...
[2022-02-16 10:46:02,208 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:46:02" (1/1) ...
[2022-02-16 10:46:02,209 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-16 10:46:02,210 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-16 10:46:02,210 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-02-16 10:46:02,210 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-02-16 10:46:02,211 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:46:02" (1/1) ...
[2022-02-16 10:46:02,218 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-16 10:46:02,224 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-16 10:46:02,236 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)
[2022-02-16 10:46:02,255 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
[2022-02-16 10:46:02,275 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2022-02-16 10:46:02,275 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-02-16 10:46:02,275 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-02-16 10:46:02,275 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2022-02-16 10:46:02,275 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-02-16 10:46:02,276 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-02-16 10:46:02,276 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-02-16 10:46:02,276 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-16 10:46:02,276 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-16 10:46:02,276 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration
[2022-02-16 10:46:02,276 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2022-02-16 10:46:02,276 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2022-02-16 10:46:02,276 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration
[2022-02-16 10:46:02,277 INFO  L130     BoogieDeclarations]: Found specification of procedure thread4
[2022-02-16 10:46:02,277 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread4
[2022-02-16 10:46:02,278 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration
[2022-02-16 10:46:02,278 INFO  L130     BoogieDeclarations]: Found specification of procedure thread5
[2022-02-16 10:46:02,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread5
[2022-02-16 10:46:02,279 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-16 10:46:02,319 INFO  L234             CfgBuilder]: Building ICFG
[2022-02-16 10:46:02,321 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-16 10:46:02,458 INFO  L275             CfgBuilder]: Performing block encoding
[2022-02-16 10:46:02,479 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-16 10:46:02,479 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-16 10:46:02,481 INFO  L202        PluginConnector]: Adding new model min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 10:46:02 BoogieIcfgContainer
[2022-02-16 10:46:02,481 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-16 10:46:02,483 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-16 10:46:02,483 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-02-16 10:46:02,502 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-02-16 10:46:02,502 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 10:46:02" (1/2) ...
[2022-02-16 10:46:02,503 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b7e41c and model type min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 10:46:02, skipping insertion in model container
[2022-02-16 10:46:02,503 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 10:46:02" (2/2) ...
[2022-02-16 10:46:02,505 INFO  L111   eAbstractionObserver]: Analyzing ICFG min-max-inc-dec.wvr.bpl
[2022-02-16 10:46:02,509 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-16 10:46:02,509 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-16 10:46:02,509 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-16 10:46:02,509 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-16 10:46:02,592 INFO  L148    ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions.
[2022-02-16 10:46:02,640 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-02-16 10:46:02,640 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-16 10:46:02,641 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)
[2022-02-16 10:46:02,644 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
[2022-02-16 10:46:02,687 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-16 10:46:02,693 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2022-02-16 10:46:02,693 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2022-02-16 10:46:02,822 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 598 transitions and produced 535 states.
[2022-02-16 10:46:02,825 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-16 10:46:02,829 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-16 10:46:02,829 INFO  L85        PathProgramCache]: Analyzing trace with hash 1769268777, now seen corresponding path program 1 times
[2022-02-16 10:46:02,837 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-16 10:46:02,837 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647620731]
[2022-02-16 10:46:02,837 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-16 10:46:02,838 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-16 10:46:03,041 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-16 10:46:03,353 INFO  L134       CoverageAnalysis]: Checked inductivity of 316 backedges. 70 proven. 175 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2022-02-16 10:46:03,353 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-16 10:46:03,354 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647620731]
[2022-02-16 10:46:03,354 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647620731] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-16 10:46:03,354 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443849003]
[2022-02-16 10:46:03,355 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-16 10:46:03,355 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-16 10:46:03,355 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-16 10:46:03,359 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)
[2022-02-16 10:46:03,368 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-02-16 10:46:03,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-16 10:46:03,493 INFO  L263         TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 16 conjunts are in the unsatisfiable core
[2022-02-16 10:46:03,503 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-16 10:46:03,911 INFO  L134       CoverageAnalysis]: Checked inductivity of 316 backedges. 87 proven. 158 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2022-02-16 10:46:03,911 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-16 10:46:04,238 INFO  L134       CoverageAnalysis]: Checked inductivity of 316 backedges. 87 proven. 158 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2022-02-16 10:46:04,239 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [443849003] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-16 10:46:04,239 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-16 10:46:04,240 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 27
[2022-02-16 10:46:04,242 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925859533]
[2022-02-16 10:46:04,242 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-16 10:46:04,246 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2022-02-16 10:46:04,247 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-16 10:46:04,263 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2022-02-16 10:46:04,266 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756
[2022-02-16 10:46:04,266 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-16 10:46:04,268 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-16 10:46:04,270 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 28 states, 28 states have (on average 4.785714285714286) internal successors, (134), 27 states have internal predecessors, (134), 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)
[2022-02-16 10:46:04,270 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-16 10:46:05,068 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 632 transitions and produced 566 states.
[2022-02-16 10:46:05,069 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2022-02-16 10:46:05,088 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-02-16 10:46:05,275 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
[2022-02-16 10:46:05,276 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-16 10:46:05,276 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-16 10:46:05,277 INFO  L85        PathProgramCache]: Analyzing trace with hash 1969074401, now seen corresponding path program 2 times
[2022-02-16 10:46:05,277 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-16 10:46:05,277 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003622068]
[2022-02-16 10:46:05,277 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-16 10:46:05,277 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-16 10:46:05,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-16 10:46:06,175 INFO  L134       CoverageAnalysis]: Checked inductivity of 489 backedges. 256 proven. 233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-16 10:46:06,176 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-16 10:46:06,176 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003622068]
[2022-02-16 10:46:06,176 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003622068] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-16 10:46:06,176 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054273613]
[2022-02-16 10:46:06,177 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-16 10:46:06,177 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-16 10:46:06,177 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-16 10:46:06,180 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)
[2022-02-16 10:46:06,181 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-02-16 10:46:06,263 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-16 10:46:06,263 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-16 10:46:06,265 INFO  L263         TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 20 conjunts are in the unsatisfiable core
[2022-02-16 10:46:06,269 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-16 10:46:06,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 489 backedges. 126 proven. 89 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2022-02-16 10:46:06,987 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-16 10:46:07,272 INFO  L134       CoverageAnalysis]: Checked inductivity of 489 backedges. 126 proven. 89 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2022-02-16 10:46:07,273 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054273613] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-16 10:46:07,274 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-16 10:46:07,275 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 20, 20] total 66
[2022-02-16 10:46:07,275 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873837606]
[2022-02-16 10:46:07,275 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-16 10:46:07,277 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 67 states
[2022-02-16 10:46:07,277 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-16 10:46:07,278 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants.
[2022-02-16 10:46:07,280 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=3976, Unknown=0, NotChecked=0, Total=4422
[2022-02-16 10:46:07,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-16 10:46:07,280 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-16 10:46:07,281 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 67 states, 67 states have (on average 2.970149253731343) internal successors, (199), 66 states have internal predecessors, (199), 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)
[2022-02-16 10:46:07,281 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. 
[2022-02-16 10:46:07,281 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-16 10:46:09,523 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 741 transitions and produced 667 states.
[2022-02-16 10:46:09,524 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2022-02-16 10:46:09,524 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. 
[2022-02-16 10:46:09,551 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-02-16 10:46:09,725 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
[2022-02-16 10:46:09,725 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-16 10:46:09,726 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-16 10:46:09,726 INFO  L85        PathProgramCache]: Analyzing trace with hash 1185845647, now seen corresponding path program 3 times
[2022-02-16 10:46:09,726 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-16 10:46:09,727 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224257422]
[2022-02-16 10:46:09,727 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-16 10:46:09,727 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-16 10:46:09,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-16 10:46:10,546 INFO  L134       CoverageAnalysis]: Checked inductivity of 714 backedges. 529 proven. 178 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2022-02-16 10:46:10,547 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-16 10:46:10,547 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224257422]
[2022-02-16 10:46:10,547 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224257422] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-16 10:46:10,547 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016336136]
[2022-02-16 10:46:10,547 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-16 10:46:10,548 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-16 10:46:10,548 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-16 10:46:10,549 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)
[2022-02-16 10:46:10,553 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-02-16 10:46:10,795 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s)
[2022-02-16 10:46:10,795 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-16 10:46:10,798 INFO  L263         TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 27 conjunts are in the unsatisfiable core
[2022-02-16 10:46:10,801 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-16 10:46:11,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 714 backedges. 303 proven. 100 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked.
[2022-02-16 10:46:11,473 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-16 10:46:11,996 INFO  L134       CoverageAnalysis]: Checked inductivity of 714 backedges. 303 proven. 100 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked.
[2022-02-16 10:46:11,997 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016336136] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-16 10:46:11,997 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-16 10:46:11,997 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 27, 27] total 70
[2022-02-16 10:46:11,997 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637223802]
[2022-02-16 10:46:11,997 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-16 10:46:11,998 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 71 states
[2022-02-16 10:46:11,998 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-16 10:46:11,999 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants.
[2022-02-16 10:46:12,001 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=775, Invalid=4195, Unknown=0, NotChecked=0, Total=4970
[2022-02-16 10:46:12,001 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-16 10:46:12,001 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-16 10:46:12,001 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 71 states, 71 states have (on average 3.2253521126760565) internal successors, (229), 70 states have internal predecessors, (229), 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)
[2022-02-16 10:46:12,002 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. 
[2022-02-16 10:46:12,002 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. 
[2022-02-16 10:46:12,002 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-16 10:46:13,173 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 956 transitions and produced 841 states.
[2022-02-16 10:46:13,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2022-02-16 10:46:13,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. 
[2022-02-16 10:46:13,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. 
[2022-02-16 10:46:13,196 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-02-16 10:46:13,387 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
[2022-02-16 10:46:13,388 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-16 10:46:13,388 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-16 10:46:13,388 INFO  L85        PathProgramCache]: Analyzing trace with hash -1412027291, now seen corresponding path program 4 times
[2022-02-16 10:46:13,389 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-16 10:46:13,389 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326090153]
[2022-02-16 10:46:13,389 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-16 10:46:13,389 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-16 10:46:13,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-16 10:46:14,437 INFO  L134       CoverageAnalysis]: Checked inductivity of 1090 backedges. 717 proven. 361 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2022-02-16 10:46:14,437 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-16 10:46:14,438 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326090153]
[2022-02-16 10:46:14,438 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326090153] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-16 10:46:14,438 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179463646]
[2022-02-16 10:46:14,438 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-16 10:46:14,438 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-16 10:46:14,438 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-16 10:46:14,439 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)
[2022-02-16 10:46:14,441 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-02-16 10:46:14,539 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-16 10:46:14,539 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-16 10:46:14,543 INFO  L263         TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 41 conjunts are in the unsatisfiable core
[2022-02-16 10:46:14,547 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-16 10:46:16,055 INFO  L134       CoverageAnalysis]: Checked inductivity of 1090 backedges. 443 proven. 371 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2022-02-16 10:46:16,055 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-16 10:46:16,511 INFO  L134       CoverageAnalysis]: Checked inductivity of 1090 backedges. 443 proven. 371 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2022-02-16 10:46:16,511 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179463646] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-16 10:46:16,512 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-16 10:46:16,512 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 39, 39] total 100
[2022-02-16 10:46:16,512 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360259999]
[2022-02-16 10:46:16,512 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-16 10:46:16,513 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 101 states
[2022-02-16 10:46:16,513 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-16 10:46:16,513 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants.
[2022-02-16 10:46:16,517 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1020, Invalid=9080, Unknown=0, NotChecked=0, Total=10100
[2022-02-16 10:46:16,517 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-16 10:46:16,517 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-16 10:46:16,518 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 101 states, 101 states have (on average 2.712871287128713) internal successors, (274), 100 states have internal predecessors, (274), 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)
[2022-02-16 10:46:16,518 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. 
[2022-02-16 10:46:16,518 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. 
[2022-02-16 10:46:16,518 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. 
[2022-02-16 10:46:16,518 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-16 10:46:24,273 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 6820 transitions and produced 3051 states.
[2022-02-16 10:46:24,274 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2022-02-16 10:46:24,274 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. 
[2022-02-16 10:46:24,274 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. 
[2022-02-16 10:46:24,274 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. 
[2022-02-16 10:46:24,298 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-02-16 10:46:24,487 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
[2022-02-16 10:46:24,488 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-16 10:46:24,488 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-16 10:46:24,488 INFO  L85        PathProgramCache]: Analyzing trace with hash 1765884249, now seen corresponding path program 5 times
[2022-02-16 10:46:24,488 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-16 10:46:24,489 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087629376]
[2022-02-16 10:46:24,489 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-16 10:46:24,489 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-16 10:46:24,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-16 10:46:25,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 5463 backedges. 400 proven. 2920 refuted. 0 times theorem prover too weak. 2143 trivial. 0 not checked.
[2022-02-16 10:46:25,147 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-16 10:46:25,147 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087629376]
[2022-02-16 10:46:25,148 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087629376] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-16 10:46:25,148 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471531192]
[2022-02-16 10:46:25,148 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-16 10:46:25,148 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-16 10:46:25,148 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-16 10:46:25,151 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)
[2022-02-16 10:46:25,152 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-02-16 10:46:28,056 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 58 check-sat command(s)
[2022-02-16 10:46:28,056 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-16 10:46:28,071 INFO  L263         TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 83 conjunts are in the unsatisfiable core
[2022-02-16 10:46:28,077 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-16 10:46:31,275 INFO  L134       CoverageAnalysis]: Checked inductivity of 5463 backedges. 4276 proven. 648 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked.
[2022-02-16 10:46:31,275 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-16 10:46:33,602 INFO  L134       CoverageAnalysis]: Checked inductivity of 5463 backedges. 4276 proven. 648 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked.
[2022-02-16 10:46:33,603 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471531192] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-16 10:46:33,603 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-16 10:46:33,603 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 78, 78] total 171
[2022-02-16 10:46:33,603 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670079856]
[2022-02-16 10:46:33,603 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-16 10:46:33,604 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 172 states
[2022-02-16 10:46:33,604 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-16 10:46:33,606 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants.
[2022-02-16 10:46:33,611 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7397, Invalid=22015, Unknown=0, NotChecked=0, Total=29412
[2022-02-16 10:46:33,611 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-16 10:46:33,611 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-16 10:46:33,612 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 172 states, 172 states have (on average 2.8430232558139537) internal successors, (489), 171 states have internal predecessors, (489), 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)
[2022-02-16 10:46:33,612 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. 
[2022-02-16 10:46:33,612 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. 
[2022-02-16 10:46:33,612 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. 
[2022-02-16 10:46:33,613 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. 
[2022-02-16 10:46:33,613 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-02-16 10:46:49,354 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 2343 transitions and produced 2102 states.
[2022-02-16 10:46:49,355 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2022-02-16 10:46:49,355 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. 
[2022-02-16 10:46:49,355 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. 
[2022-02-16 10:46:49,355 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. 
[2022-02-16 10:46:49,358 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 310 states. 
[2022-02-16 10:46:49,383 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-02-16 10:46:49,567 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
[2022-02-16 10:46:49,568 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-16 10:46:49,568 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-16 10:46:49,569 INFO  L85        PathProgramCache]: Analyzing trace with hash 1562851719, now seen corresponding path program 6 times
[2022-02-16 10:46:49,569 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-16 10:46:49,569 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92082686]
[2022-02-16 10:46:49,569 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-16 10:46:49,569 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-16 10:46:49,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-16 10:47:00,715 INFO  L134       CoverageAnalysis]: Checked inductivity of 17166 backedges. 16131 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-16 10:47:00,715 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-16 10:47:00,715 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92082686]
[2022-02-16 10:47:00,716 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92082686] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-16 10:47:00,716 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461083690]
[2022-02-16 10:47:00,716 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-16 10:47:00,716 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-16 10:47:00,716 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-16 10:47:00,717 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)
[2022-02-16 10:47:00,718 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-02-16 10:47:00,824 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s)
[2022-02-16 10:47:00,824 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-16 10:47:00,825 INFO  L263         TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 10 conjunts are in the unsatisfiable core
[2022-02-16 10:47:00,830 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-02-16 10:47:02,538 INFO  L353             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-16 10:47:02,539 INFO  L387             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28
[2022-02-16 10:47:03,326 INFO  L134       CoverageAnalysis]: Checked inductivity of 17166 backedges. 105 proven. 63 refuted. 0 times theorem prover too weak. 16998 trivial. 0 not checked.
[2022-02-16 10:47:03,327 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-02-16 10:47:05,378 INFO  L353             Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-16 10:47:05,379 INFO  L387             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 27
[2022-02-16 10:47:05,530 INFO  L134       CoverageAnalysis]: Checked inductivity of 17166 backedges. 43 proven. 125 refuted. 0 times theorem prover too weak. 16998 trivial. 0 not checked.
[2022-02-16 10:47:05,530 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [461083690] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-16 10:47:05,530 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-16 10:47:05,531 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [212, 9, 9] total 225
[2022-02-16 10:47:05,531 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46731471]
[2022-02-16 10:47:05,531 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-16 10:47:05,532 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 225 states
[2022-02-16 10:47:05,532 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-16 10:47:05,534 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 225 interpolants.
[2022-02-16 10:47:05,540 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8647, Invalid=41753, Unknown=0, NotChecked=0, Total=50400
[2022-02-16 10:47:05,540 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-02-16 10:47:05,540 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-16 10:47:05,541 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 225 states, 225 states have (on average 2.2444444444444445) internal successors, (505), 225 states have internal predecessors, (505), 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)
[2022-02-16 10:47:05,541 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. 
[2022-02-16 10:47:05,541 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. 
[2022-02-16 10:47:05,541 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. 
[2022-02-16 10:47:05,541 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 163 states. 
[2022-02-16 10:47:05,541 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 310 states. 
[2022-02-16 10:47:05,541 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.