/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-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/FischerWithBug.bpl


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


This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19
[2022-03-16 10:25:11,320 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-03-16 10:25:11,395 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2022-03-16 10:25:11,413 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-03-16 10:25:11,413 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-03-16 10:25:11,414 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-NoForkJoinOpt.epf
[2022-03-16 10:25:11,441 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-03-16 10:25:11,441 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-03-16 10:25:11,441 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-03-16 10:25:11,441 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-03-16 10:25:11,442 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-03-16 10:25:11,442 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-03-16 10:25:11,442 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-03-16 10:25:11,442 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-03-16 10:25:11,442 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-03-16 10:25:11,443 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-03-16 10:25:11,443 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-03-16 10:25:11,443 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-03-16 10:25:11,443 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-03-16 10:25:11,443 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-03-16 10:25:11,443 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-03-16 10:25:11,443 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-03-16 10:25:11,443 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-03-16 10:25:11,443 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-03-16 10:25:11,443 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-03-16 10:25:11,443 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-03-16 10:25:11,443 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-03-16 10:25:11,444 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-03-16 10:25:11,444 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-03-16 10:25:11,444 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-03-16 10:25:11,444 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-03-16 10:25:11,444 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-16 10:25:11,444 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-03-16 10:25:11,444 INFO  L138        SettingsManager]:  * Construct finite automaton lazily=true
[2022-03-16 10:25:11,444 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-03-16 10:25:11,444 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-03-16 10:25:11,444 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-03-16 10:25:11,444 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-03-16 10:25:11,445 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-03-16 10:25:11,445 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-03-16 10:25:11,445 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-03-16 10:25:11,445 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS
[2022-03-16 10:25:11,445 INFO  L138        SettingsManager]:  * MCR: Optimize fork and join=false
[2022-03-16 10:25:11,445 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-03-16 10:25:11,636 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-03-16 10:25:11,652 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-03-16 10:25:11,654 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-03-16 10:25:11,655 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-03-16 10:25:11,656 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2022-03-16 10:25:11,656 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/FischerWithBug.bpl
[2022-03-16 10:25:11,657 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/FischerWithBug.bpl'
[2022-03-16 10:25:11,677 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-03-16 10:25:11,678 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2022-03-16 10:25:11,679 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-03-16 10:25:11,679 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-03-16 10:25:11,679 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-03-16 10:25:11,687 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:25:11" (1/1) ...
[2022-03-16 10:25:11,692 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:25:11" (1/1) ...
[2022-03-16 10:25:11,697 INFO  L137                Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-03-16 10:25:11,698 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-03-16 10:25:11,699 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-03-16 10:25:11,699 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-03-16 10:25:11,699 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-03-16 10:25:11,704 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:25:11" (1/1) ...
[2022-03-16 10:25:11,705 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:25:11" (1/1) ...
[2022-03-16 10:25:11,705 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:25:11" (1/1) ...
[2022-03-16 10:25:11,705 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:25:11" (1/1) ...
[2022-03-16 10:25:11,707 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:25:11" (1/1) ...
[2022-03-16 10:25:11,709 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:25:11" (1/1) ...
[2022-03-16 10:25:11,709 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:25:11" (1/1) ...
[2022-03-16 10:25:11,710 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-03-16 10:25:11,711 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-03-16 10:25:11,711 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-03-16 10:25:11,714 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-03-16 10:25:11,715 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:25:11" (1/1) ...
[2022-03-16 10:25:11,720 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-03-16 10:25:11,728 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 10:25:11,753 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)
[2022-03-16 10:25:11,762 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
[2022-03-16 10:25:11,801 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Process2 given in one single declaration
[2022-03-16 10:25:11,802 INFO  L130     BoogieDeclarations]: Found specification of procedure Process2
[2022-03-16 10:25:11,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure Process2
[2022-03-16 10:25:11,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration
[2022-03-16 10:25:11,802 INFO  L130     BoogieDeclarations]: Found specification of procedure Process1
[2022-03-16 10:25:11,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure Process1
[2022-03-16 10:25:11,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-03-16 10:25:11,802 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-03-16 10:25:11,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-03-16 10:25:11,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Clock given in one single declaration
[2022-03-16 10:25:11,803 INFO  L130     BoogieDeclarations]: Found specification of procedure Clock
[2022-03-16 10:25:11,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure Clock
[2022-03-16 10:25:11,803 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-03-16 10:25:11,856 INFO  L234             CfgBuilder]: Building ICFG
[2022-03-16 10:25:11,857 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-03-16 10:25:11,928 INFO  L275             CfgBuilder]: Performing block encoding
[2022-03-16 10:25:11,933 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-03-16 10:25:11,933 INFO  L299             CfgBuilder]: Removed 3 assume(true) statements.
[2022-03-16 10:25:11,934 INFO  L202        PluginConnector]: Adding new model FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:25:11 BoogieIcfgContainer
[2022-03-16 10:25:11,934 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-03-16 10:25:11,935 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-03-16 10:25:11,935 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-03-16 10:25:11,939 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-03-16 10:25:11,939 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:25:11" (1/2) ...
[2022-03-16 10:25:11,940 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651331d0 and model type FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:25:11, skipping insertion in model container
[2022-03-16 10:25:11,940 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:25:11" (2/2) ...
[2022-03-16 10:25:11,941 INFO  L111   eAbstractionObserver]: Analyzing ICFG FischerWithBug.bpl
[2022-03-16 10:25:11,944 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-03-16 10:25:11,944 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-03-16 10:25:11,944 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-03-16 10:25:11,945 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-03-16 10:25:11,980 WARN  L322   ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,980 WARN  L322   ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,981 WARN  L322   ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,981 WARN  L322   ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,982 WARN  L322   ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,982 WARN  L322   ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,982 WARN  L322   ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,983 WARN  L322   ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,984 WARN  L322   ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,984 WARN  L322   ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,985 WARN  L322   ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,997 WARN  L322   ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,998 WARN  L322   ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,998 WARN  L322   ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,998 WARN  L322   ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:11,999 WARN  L322   ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:12,003 WARN  L322   ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:12,004 WARN  L322   ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-03-16 10:25:12,004 INFO  L148    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-03-16 10:25:12,043 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-03-16 10:25:12,043 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 10:25:12,045 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)
[2022-03-16 10:25:12,046 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
[2022-03-16 10:25:12,097 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-03-16 10:25:12,103 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true
[2022-03-16 10:25:12,103 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2022-03-16 10:25:12,151 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 55 transitions and produced 56 states.
[2022-03-16 10:25:12,152 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] ===
[2022-03-16 10:25:12,155 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 10:25:12,156 INFO  L85        PathProgramCache]: Analyzing trace with hash 1615810858, now seen corresponding path program 1 times
[2022-03-16 10:25:12,161 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 10:25:12,161 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255959276]
[2022-03-16 10:25:12,162 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 10:25:12,162 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 10:25:12,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 10:25:12,244 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 10:25:12,244 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 10:25:12,244 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255959276]
[2022-03-16 10:25:12,245 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255959276] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 10:25:12,245 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 10:25:12,245 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-03-16 10:25:12,246 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663759049]
[2022-03-16 10:25:12,246 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 10:25:12,249 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-03-16 10:25:12,249 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 10:25:12,265 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-03-16 10:25:12,266 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-03-16 10:25:12,269 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:12,270 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 10:25:12,270 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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)
[2022-03-16 10:25:12,271 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:12,289 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 47 transitions and produced 48 states.
[2022-03-16 10:25:12,289 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:12,289 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-03-16 10:25:12,289 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] ===
[2022-03-16 10:25:12,290 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 10:25:12,290 INFO  L85        PathProgramCache]: Analyzing trace with hash -716527660, now seen corresponding path program 1 times
[2022-03-16 10:25:12,290 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 10:25:12,292 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138003839]
[2022-03-16 10:25:12,292 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 10:25:12,292 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 10:25:12,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 10:25:12,317 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-03-16 10:25:12,317 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 10:25:12,317 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138003839]
[2022-03-16 10:25:12,317 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138003839] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 10:25:12,317 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 10:25:12,317 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-03-16 10:25:12,318 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675065573]
[2022-03-16 10:25:12,318 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 10:25:12,319 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-03-16 10:25:12,319 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 10:25:12,319 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-03-16 10:25:12,319 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-03-16 10:25:12,319 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:12,319 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 10:25:12,319 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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)
[2022-03-16 10:25:12,320 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:12,320 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:12,792 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 20857 transitions and produced 19932 states.
[2022-03-16 10:25:12,793 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:12,794 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:12,794 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-03-16 10:25:12,795 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] ===
[2022-03-16 10:25:12,796 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 10:25:12,797 INFO  L85        PathProgramCache]: Analyzing trace with hash 694468415, now seen corresponding path program 1 times
[2022-03-16 10:25:12,797 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 10:25:12,798 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69434703]
[2022-03-16 10:25:12,798 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 10:25:12,798 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 10:25:13,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 10:25:16,209 INFO  L134       CoverageAnalysis]: Checked inductivity of 808116 backedges. 4020 proven. 0 refuted. 0 times theorem prover too weak. 804096 trivial. 0 not checked.
[2022-03-16 10:25:16,209 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 10:25:16,209 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69434703]
[2022-03-16 10:25:16,210 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69434703] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 10:25:16,210 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 10:25:16,211 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-03-16 10:25:16,211 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773243505]
[2022-03-16 10:25:16,211 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 10:25:16,215 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-03-16 10:25:16,215 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 10:25:16,215 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-03-16 10:25:16,216 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-03-16 10:25:16,216 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:16,216 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 10:25:16,216 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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)
[2022-03-16 10:25:16,216 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:16,216 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:16,217 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:16,690 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 22279 transitions and produced 21295 states.
[2022-03-16 10:25:16,692 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:16,696 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:16,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:16,697 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-03-16 10:25:16,698 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] ===
[2022-03-16 10:25:16,699 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 10:25:16,700 INFO  L85        PathProgramCache]: Analyzing trace with hash 799674720, now seen corresponding path program 1 times
[2022-03-16 10:25:16,700 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 10:25:16,701 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471220070]
[2022-03-16 10:25:16,701 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 10:25:16,701 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 10:25:16,836 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 10:25:20,113 INFO  L134       CoverageAnalysis]: Checked inductivity of 913799 backedges. 3251 proven. 0 refuted. 0 times theorem prover too weak. 910548 trivial. 0 not checked.
[2022-03-16 10:25:20,114 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 10:25:20,114 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471220070]
[2022-03-16 10:25:20,114 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471220070] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 10:25:20,118 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 10:25:20,118 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-03-16 10:25:20,119 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865841948]
[2022-03-16 10:25:20,119 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 10:25:20,121 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-03-16 10:25:20,121 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 10:25:20,123 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-03-16 10:25:20,123 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-03-16 10:25:20,123 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:20,123 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 10:25:20,123 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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)
[2022-03-16 10:25:20,123 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:20,123 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:20,124 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:20,124 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:20,444 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 12566 transitions and produced 11690 states.
[2022-03-16 10:25:20,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:20,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:20,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:20,445 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:20,445 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-03-16 10:25:20,446 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] ===
[2022-03-16 10:25:20,446 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 10:25:20,446 INFO  L85        PathProgramCache]: Analyzing trace with hash 1718133477, now seen corresponding path program 2 times
[2022-03-16 10:25:20,447 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 10:25:20,447 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921902310]
[2022-03-16 10:25:20,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 10:25:20,448 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 10:25:20,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 10:25:21,415 INFO  L134       CoverageAnalysis]: Checked inductivity of 237083 backedges. 21641 proven. 0 refuted. 0 times theorem prover too weak. 215442 trivial. 0 not checked.
[2022-03-16 10:25:21,415 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 10:25:21,415 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921902310]
[2022-03-16 10:25:21,415 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921902310] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 10:25:21,416 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 10:25:21,416 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-03-16 10:25:21,416 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804894668]
[2022-03-16 10:25:21,416 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 10:25:21,418 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-03-16 10:25:21,418 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 10:25:21,418 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-03-16 10:25:21,418 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-03-16 10:25:21,418 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:21,419 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 10:25:21,419 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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)
[2022-03-16 10:25:21,419 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:21,419 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:21,419 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:21,419 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:21,419 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:21,599 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 12395 transitions and produced 11369 states.
[2022-03-16 10:25:21,599 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:21,599 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:21,600 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:21,600 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:21,601 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:21,601 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-03-16 10:25:21,601 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] ===
[2022-03-16 10:25:21,602 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 10:25:21,602 INFO  L85        PathProgramCache]: Analyzing trace with hash -1291448746, now seen corresponding path program 3 times
[2022-03-16 10:25:21,602 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 10:25:21,603 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038604429]
[2022-03-16 10:25:21,603 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 10:25:21,603 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 10:25:21,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 10:25:22,933 INFO  L134       CoverageAnalysis]: Checked inductivity of 214368 backedges. 56607 proven. 0 refuted. 0 times theorem prover too weak. 157761 trivial. 0 not checked.
[2022-03-16 10:25:22,934 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 10:25:22,934 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038604429]
[2022-03-16 10:25:22,934 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038604429] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 10:25:22,934 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 10:25:22,934 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-03-16 10:25:22,934 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293369564]
[2022-03-16 10:25:22,934 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 10:25:22,935 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-03-16 10:25:22,935 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 10:25:22,947 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-03-16 10:25:22,947 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-03-16 10:25:22,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:22,948 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 10:25:22,948 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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)
[2022-03-16 10:25:22,948 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:22,948 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:22,948 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:22,948 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:22,948 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:22,948 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:23,122 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 10101 transitions and produced 9543 states.
[2022-03-16 10:25:23,122 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:23,122 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,122 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,122 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,122 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,123 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,123 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-03-16 10:25:23,123 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] ===
[2022-03-16 10:25:23,123 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 10:25:23,124 INFO  L85        PathProgramCache]: Analyzing trace with hash 225058394, now seen corresponding path program 1 times
[2022-03-16 10:25:23,124 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 10:25:23,124 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133417881]
[2022-03-16 10:25:23,124 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 10:25:23,124 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 10:25:23,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 10:25:23,861 INFO  L134       CoverageAnalysis]: Checked inductivity of 158749 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 158602 trivial. 0 not checked.
[2022-03-16 10:25:23,862 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 10:25:23,862 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133417881]
[2022-03-16 10:25:23,862 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133417881] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 10:25:23,862 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 10:25:23,862 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-03-16 10:25:23,862 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914839258]
[2022-03-16 10:25:23,862 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 10:25:23,863 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-03-16 10:25:23,863 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 10:25:23,864 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-03-16 10:25:23,864 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-03-16 10:25:23,864 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:23,864 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 10:25:23,864 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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)
[2022-03-16 10:25:23,864 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:23,865 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,865 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,865 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,865 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,865 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,865 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:23,950 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 9143 transitions and produced 8753 states.
[2022-03-16 10:25:23,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:23,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:23,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-03-16 10:25:23,952 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-03-16 10:25:23,952 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] ===
[2022-03-16 10:25:23,952 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 10:25:23,952 INFO  L85        PathProgramCache]: Analyzing trace with hash 82324447, now seen corresponding path program 2 times
[2022-03-16 10:25:23,952 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 10:25:23,952 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398624447]
[2022-03-16 10:25:23,953 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 10:25:23,953 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 10:25:24,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 10:25:24,420 INFO  L134       CoverageAnalysis]: Checked inductivity of 149096 backedges. 1230 proven. 0 refuted. 0 times theorem prover too weak. 147866 trivial. 0 not checked.
[2022-03-16 10:25:24,420 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 10:25:24,420 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398624447]
[2022-03-16 10:25:24,420 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398624447] provided 1 perfect and 0 imperfect interpolant sequences
[2022-03-16 10:25:24,420 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-03-16 10:25:24,421 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-03-16 10:25:24,421 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192268298]
[2022-03-16 10:25:24,421 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-03-16 10:25:24,422 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-03-16 10:25:24,422 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 10:25:24,422 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-03-16 10:25:24,422 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-03-16 10:25:24,422 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:24,422 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 10:25:24,422 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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)
[2022-03-16 10:25:24,422 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:24,422 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:24,423 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:24,423 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:24,423 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:24,423 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:24,423 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2022-03-16 10:25:24,423 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:31,148 INFO  L104   alCausalityReduction]: MaximalCausalityReduction evaluated 679686 transitions and produced 322134 states.
[2022-03-16 10:25:31,166 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:31,166 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:31,166 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:31,166 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:31,166 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:31,167 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:31,167 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-03-16 10:25:31,167 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-03-16 10:25:31,167 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-03-16 10:25:31,167 INFO  L402      AbstractCegarLoop]: === Iteration 9 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] ===
[2022-03-16 10:25:31,168 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-03-16 10:25:31,168 INFO  L85        PathProgramCache]: Analyzing trace with hash 1408925211, now seen corresponding path program 3 times
[2022-03-16 10:25:31,168 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-03-16 10:25:31,168 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417868679]
[2022-03-16 10:25:31,168 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-03-16 10:25:31,168 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-03-16 10:25:31,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-03-16 10:25:33,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 44317 backedges. 14538 proven. 1742 refuted. 0 times theorem prover too weak. 28037 trivial. 0 not checked.
[2022-03-16 10:25:33,128 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-03-16 10:25:33,128 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417868679]
[2022-03-16 10:25:33,128 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417868679] provided 0 perfect and 1 imperfect interpolant sequences
[2022-03-16 10:25:33,128 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341371073]
[2022-03-16 10:25:33,128 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-03-16 10:25:33,128 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-03-16 10:25:33,128 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-03-16 10:25:33,136 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)
[2022-03-16 10:25:33,139 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-03-16 10:25:33,423 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s)
[2022-03-16 10:25:33,423 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-03-16 10:25:33,432 INFO  L263         TraceCheckSpWp]: Trace formula consists of 2120 conjuncts, 21 conjunts are in the unsatisfiable core
[2022-03-16 10:25:33,453 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-03-16 10:25:35,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 44317 backedges. 15393 proven. 885 refuted. 0 times theorem prover too weak. 28039 trivial. 0 not checked.
[2022-03-16 10:25:35,681 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-03-16 10:25:37,996 INFO  L134       CoverageAnalysis]: Checked inductivity of 44317 backedges. 15393 proven. 885 refuted. 0 times theorem prover too weak. 28039 trivial. 0 not checked.
[2022-03-16 10:25:37,997 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341371073] provided 0 perfect and 2 imperfect interpolant sequences
[2022-03-16 10:25:37,997 INFO  L191   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-03-16 10:25:37,997 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 22, 22] total 92
[2022-03-16 10:25:37,997 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691542999]
[2022-03-16 10:25:37,998 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-03-16 10:25:38,000 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 92 states
[2022-03-16 10:25:38,000 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-03-16 10:25:38,002 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants.
[2022-03-16 10:25:38,005 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=7807, Unknown=0, NotChecked=0, Total=8372
[2022-03-16 10:25:38,005 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:38,005 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-03-16 10:25:38,010 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 92 states, 92 states have (on average 8.119565217391305) internal successors, (747), 92 states have internal predecessors, (747), 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)
[2022-03-16 10:25:38,010 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-03-16 10:25:38,010 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:38,010 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:38,010 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:38,010 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:38,010 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2022-03-16 10:25:38,010 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2022-03-16 10:25:38,010 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2022-03-16 10:25:38,010 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.