/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-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl


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


This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99
[2021-07-10 09:08:06,642 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2021-07-10 09:08:06,697 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-07-10 09:08:06,697 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-07-10 09:08:06,698 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-07-10 09:08:06,698 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-07-10 09:08:06,699 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
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[2021-07-10 09:08:06,706 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
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[2021-07-10 09:08:06,709 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2021-07-10 09:08:06,711 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2021-07-10 09:08:06,713 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2021-07-10 09:08:06,714 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-07-10 09:08:06,718 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-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf
[2021-07-10 09:08:06,736 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-07-10 09:08:06,736 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-07-10 09:08:06,736 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-07-10 09:08:06,736 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-07-10 09:08:06,737 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-07-10 09:08:06,737 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-07-10 09:08:06,737 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-07-10 09:08:06,737 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-07-10 09:08:06,737 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-07-10 09:08:06,737 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-07-10 09:08:06,737 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-07-10 09:08:06,738 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-07-10 09:08:06,738 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-07-10 09:08:06,738 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-07-10 09:08:06,738 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-07-10 09:08:06,738 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-07-10 09:08:06,738 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-07-10 09:08:06,738 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-07-10 09:08:06,738 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-07-10 09:08:06,738 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-07-10 09:08:06,738 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-07-10 09:08:06,739 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-07-10 09:08:06,739 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-07-10 09:08:06,739 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-07-10 09:08:06,739 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-07-10 09:08:06,739 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-07-10 09:08:06,739 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-07-10 09:08:06,739 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-07-10 09:08:06,739 INFO  L138        SettingsManager]:  * DFS Order used in POR=PSEUDO_LOCKSTEP
[2021-07-10 09:08:06,739 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-07-10 09:08:06,739 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-07-10 09:08:06,739 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-07-10 09:08:06,740 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-07-10 09:08:06,740 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES
[2021-07-10 09:08:06,740 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-07-10 09:08:06,939 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-07-10 09:08:06,963 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-07-10 09:08:06,965 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-07-10 09:08:06,966 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2021-07-10 09:08:06,966 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2021-07-10 09:08:06,967 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl
[2021-07-10 09:08:06,967 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl'
[2021-07-10 09:08:06,991 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-07-10 09:08:06,992 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2021-07-10 09:08:06,994 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-07-10 09:08:06,994 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-07-10 09:08:06,995 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-07-10 09:08:07,002 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:08:06" (1/1) ...
[2021-07-10 09:08:07,008 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:08:06" (1/1) ...
[2021-07-10 09:08:07,013 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-07-10 09:08:07,014 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-07-10 09:08:07,014 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-07-10 09:08:07,015 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-07-10 09:08:07,020 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:08:06" (1/1) ...
[2021-07-10 09:08:07,020 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:08:06" (1/1) ...
[2021-07-10 09:08:07,021 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:08:06" (1/1) ...
[2021-07-10 09:08:07,021 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:08:06" (1/1) ...
[2021-07-10 09:08:07,025 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:08:06" (1/1) ...
[2021-07-10 09:08:07,028 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:08:06" (1/1) ...
[2021-07-10 09:08:07,028 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:08:06" (1/1) ...
[2021-07-10 09:08:07,029 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-07-10 09:08:07,029 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-07-10 09:08:07,029 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-07-10 09:08:07,030 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-07-10 09:08:07,031 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:08:06" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-07-10 09:08:07,087 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2021-07-10 09:08:07,087 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2021-07-10 09:08:07,087 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2021-07-10 09:08:07,087 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2021-07-10 09:08:07,087 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2021-07-10 09:08:07,087 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2021-07-10 09:08:07,087 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2021-07-10 09:08:07,087 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-07-10 09:08:07,087 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-07-10 09:08:07,088 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-07-10 09:08:07,263 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-07-10 09:08:07,263 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2021-07-10 09:08:07,265 INFO  L202        PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 09:08:07 BoogieIcfgContainer
[2021-07-10 09:08:07,265 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-07-10 09:08:07,266 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-07-10 09:08:07,266 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-07-10 09:08:07,268 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-07-10 09:08:07,268 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:08:06" (1/2) ...
[2021-07-10 09:08:07,268 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c14489 and model type two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 09:08:07, skipping insertion in model container
[2021-07-10 09:08:07,269 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 09:08:07" (2/2) ...
[2021-07-10 09:08:07,269 INFO  L111   eAbstractionObserver]: Analyzing ICFG two-queue.wvr.bpl
[2021-07-10 09:08:07,273 WARN  L148   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-07-10 09:08:07,273 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-07-10 09:08:07,273 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-07-10 09:08:07,273 INFO  L474   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-07-10 09:08:07,293 INFO  L149    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2021-07-10 09:08:07,307 INFO  L255      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-07-10 09:08:07,355 INFO  L378      AbstractCegarLoop]: Interprodecural is true
[2021-07-10 09:08:07,355 INFO  L379      AbstractCegarLoop]: Hoare is false
[2021-07-10 09:08:07,355 INFO  L380      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-07-10 09:08:07,355 INFO  L381      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-07-10 09:08:07,357 INFO  L382      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-07-10 09:08:07,357 INFO  L383      AbstractCegarLoop]: Difference is false
[2021-07-10 09:08:07,357 INFO  L384      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-07-10 09:08:07,358 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start========
[2021-07-10 09:08:07,462 INFO  L430      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-07-10 09:08:07,465 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-10 09:08:07,465 INFO  L82        PathProgramCache]: Analyzing trace with hash 656503574, now seen corresponding path program 1 times
[2021-07-10 09:08:07,470 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-10 09:08:07,471 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112384273]
[2021-07-10 09:08:07,471 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-10 09:08:07,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-10 09:08:07,773 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-07-10 09:08:07,773 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-10 09:08:07,774 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112384273]
[2021-07-10 09:08:07,774 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112384273] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-10 09:08:07,774 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052188762]
[2021-07-10 09:08:07,774 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-10 09:08:07,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-10 09:08:07,824 INFO  L263         TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 19 conjunts are in the unsatisfiable core
[2021-07-10 09:08:07,827 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-10 09:08:07,996 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2021-07-10 09:08:07,999 INFO  L550         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2021-07-10 09:08:08,003 INFO  L628         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-07-10 09:08:08,005 INFO  L550         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars,  End of recursive call:  and 1 xjuncts.
[2021-07-10 09:08:08,005 INFO  L247         ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:11
[2021-07-10 09:08:08,088 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12
[2021-07-10 09:08:08,091 INFO  L550         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2021-07-10 09:08:08,094 INFO  L628         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-07-10 09:08:08,094 INFO  L550         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars,  End of recursive call:  and 1 xjuncts.
[2021-07-10 09:08:08,095 INFO  L247         ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:9
[2021-07-10 09:08:08,137 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-07-10 09:08:08,138 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052188762] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-10 09:08:08,138 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-10 09:08:08,138 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18
[2021-07-10 09:08:08,139 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125213285]
[2021-07-10 09:08:08,141 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-07-10 09:08:08,142 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-10 09:08:08,161 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-07-10 09:08:08,163 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342
[2021-07-10 09:08:08,163 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:08,164 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-10 09:08:08,166 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 19 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 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)
[2021-07-10 09:08:08,166 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:08,519 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-07-10 09:08:08,736 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2021-07-10 09:08:08,736 INFO  L430      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-07-10 09:08:08,737 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-10 09:08:08,737 INFO  L82        PathProgramCache]: Analyzing trace with hash -1656222829, now seen corresponding path program 2 times
[2021-07-10 09:08:08,737 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-10 09:08:08,737 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472642464]
[2021-07-10 09:08:08,737 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-10 09:08:08,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-10 09:08:08,790 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2021-07-10 09:08:08,791 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-10 09:08:08,791 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472642464]
[2021-07-10 09:08:08,791 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472642464] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-10 09:08:08,791 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005241653]
[2021-07-10 09:08:08,791 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-10 09:08:08,825 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-07-10 09:08:08,825 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-07-10 09:08:08,826 INFO  L263         TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-07-10 09:08:08,827 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-10 09:08:08,891 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2021-07-10 09:08:08,891 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005241653] provided 1 perfect and 0 imperfect interpolant sequences
[2021-07-10 09:08:08,891 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2021-07-10 09:08:08,892 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4
[2021-07-10 09:08:08,892 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752087636]
[2021-07-10 09:08:08,892 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-07-10 09:08:08,892 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-10 09:08:08,893 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-07-10 09:08:08,893 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2021-07-10 09:08:08,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:08,893 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-10 09:08:08,893 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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)
[2021-07-10 09:08:08,893 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-07-10 09:08:08,893 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:08,906 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-07-10 09:08:08,907 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-07-10 09:08:09,125 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-10 09:08:09,125 INFO  L430      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-07-10 09:08:09,126 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-10 09:08:09,126 INFO  L82        PathProgramCache]: Analyzing trace with hash -2015407131, now seen corresponding path program 3 times
[2021-07-10 09:08:09,126 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-10 09:08:09,126 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539347777]
[2021-07-10 09:08:09,126 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-10 09:08:09,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-10 09:08:09,172 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2021-07-10 09:08:09,172 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-10 09:08:09,172 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539347777]
[2021-07-10 09:08:09,172 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539347777] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-10 09:08:09,172 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525213422]
[2021-07-10 09:08:09,173 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-10 09:08:09,216 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2021-07-10 09:08:09,217 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-07-10 09:08:09,217 INFO  L263         TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-07-10 09:08:09,218 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-10 09:08:09,309 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2021-07-10 09:08:09,309 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525213422] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-10 09:08:09,309 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-10 09:08:09,310 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5
[2021-07-10 09:08:09,310 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968360472]
[2021-07-10 09:08:09,310 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-07-10 09:08:09,310 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-10 09:08:09,311 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-07-10 09:08:09,311 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-07-10 09:08:09,311 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:09,311 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-10 09:08:09,311 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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)
[2021-07-10 09:08:09,311 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-07-10 09:08:09,311 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-07-10 09:08:09,311 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:09,326 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-07-10 09:08:09,327 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-07-10 09:08:09,327 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:09,546 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-10 09:08:09,546 INFO  L430      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-07-10 09:08:09,546 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-10 09:08:09,546 INFO  L82        PathProgramCache]: Analyzing trace with hash -412638541, now seen corresponding path program 4 times
[2021-07-10 09:08:09,547 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-10 09:08:09,547 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410850167]
[2021-07-10 09:08:09,547 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-10 09:08:09,573 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-10 09:08:09,627 INFO  L134       CoverageAnalysis]: Checked inductivity of 119 backedges. 59 proven. 41 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2021-07-10 09:08:09,627 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-10 09:08:09,627 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410850167]
[2021-07-10 09:08:09,627 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410850167] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-10 09:08:09,627 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985522436]
[2021-07-10 09:08:09,628 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-10 09:08:09,678 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-07-10 09:08:09,678 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-07-10 09:08:09,679 INFO  L263         TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-07-10 09:08:09,680 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-10 09:08:09,758 INFO  L134       CoverageAnalysis]: Checked inductivity of 119 backedges. 55 proven. 27 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked.
[2021-07-10 09:08:09,758 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [985522436] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-10 09:08:09,759 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-10 09:08:09,759 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 7
[2021-07-10 09:08:09,759 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679894003]
[2021-07-10 09:08:09,759 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-07-10 09:08:09,759 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-10 09:08:09,759 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-07-10 09:08:09,760 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56
[2021-07-10 09:08:09,760 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:09,760 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-10 09:08:09,760 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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)
[2021-07-10 09:08:09,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-07-10 09:08:09,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-07-10 09:08:09,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:09,760 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:09,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-07-10 09:08:09,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-07-10 09:08:09,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:09,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:09,988 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-10 09:08:09,989 INFO  L430      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-07-10 09:08:09,989 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-10 09:08:09,989 INFO  L82        PathProgramCache]: Analyzing trace with hash 590979932, now seen corresponding path program 5 times
[2021-07-10 09:08:09,989 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-10 09:08:09,989 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050871617]
[2021-07-10 09:08:09,989 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-10 09:08:10,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-10 09:08:10,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 46 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-07-10 09:08:10,367 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-10 09:08:10,367 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050871617]
[2021-07-10 09:08:10,367 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050871617] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-10 09:08:10,367 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93916779]
[2021-07-10 09:08:10,368 INFO  L93    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-10 09:08:10,408 INFO  L228   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s)
[2021-07-10 09:08:10,408 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-07-10 09:08:10,409 INFO  L263         TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 38 conjunts are in the unsatisfiable core
[2021-07-10 09:08:10,410 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-10 09:08:10,598 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-07-10 09:08:10,600 INFO  L550         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2021-07-10 09:08:10,603 INFO  L628         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-07-10 09:08:10,604 INFO  L550         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars,  End of recursive call:  and 1 xjuncts.
[2021-07-10 09:08:10,604 INFO  L247         ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13
[2021-07-10 09:08:10,634 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2021-07-10 09:08:10,635 INFO  L550         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2021-07-10 09:08:10,639 INFO  L628         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-07-10 09:08:10,640 INFO  L550         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars,  End of recursive call:  and 1 xjuncts.
[2021-07-10 09:08:10,640 INFO  L247         ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:12
[2021-07-10 09:08:10,706 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2021-07-10 09:08:10,706 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [93916779] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-10 09:08:10,706 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-10 09:08:10,706 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17] total 27
[2021-07-10 09:08:10,706 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343722797]
[2021-07-10 09:08:10,707 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 28 states
[2021-07-10 09:08:10,707 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-10 09:08:10,707 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2021-07-10 09:08:10,708 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756
[2021-07-10 09:08:10,708 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:10,708 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-10 09:08:10,708 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 28 states, 28 states have (on average 2.142857142857143) internal successors, (60), 27 states have internal predecessors, (60), 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)
[2021-07-10 09:08:10,708 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-07-10 09:08:10,708 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-07-10 09:08:10,708 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:10,708 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:10,708 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:10,908 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-07-10 09:08:10,909 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-07-10 09:08:10,909 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:10,909 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:10,909 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2021-07-10 09:08:11,116 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-10 09:08:11,117 INFO  L430      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-07-10 09:08:11,117 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-10 09:08:11,117 INFO  L82        PathProgramCache]: Analyzing trace with hash 1675653020, now seen corresponding path program 6 times
[2021-07-10 09:08:11,118 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-10 09:08:11,118 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621998079]
[2021-07-10 09:08:11,118 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-10 09:08:11,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-10 09:08:11,450 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-07-10 09:08:11,450 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-10 09:08:11,450 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621998079]
[2021-07-10 09:08:11,450 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621998079] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-10 09:08:11,450 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667180710]
[2021-07-10 09:08:11,451 INFO  L93    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-10 09:08:11,484 INFO  L228   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-07-10 09:08:11,484 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-07-10 09:08:11,484 INFO  L263         TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 22 conjunts are in the unsatisfiable core
[2021-07-10 09:08:11,485 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-10 09:08:11,694 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2021-07-10 09:08:11,696 INFO  L550         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2021-07-10 09:08:11,703 INFO  L628         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-07-10 09:08:11,716 INFO  L550         ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars,  End of recursive call: 1 dim-0 vars,  and 1 xjuncts.
[2021-07-10 09:08:11,716 INFO  L247         ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:24, output treesize:17
[2021-07-10 09:08:11,833 INFO  L173   IndexEqualityManager]: detected equality via solver
[2021-07-10 09:08:11,834 INFO  L388             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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2021-07-10 09:08:11,835 INFO  L550         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2021-07-10 09:08:11,841 INFO  L628         ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-07-10 09:08:11,844 INFO  L550         ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars,  End of recursive call:  and 1 xjuncts.
[2021-07-10 09:08:11,844 INFO  L247         ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:12
[2021-07-10 09:08:11,914 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-07-10 09:08:11,914 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [667180710] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-10 09:08:11,915 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-10 09:08:11,915 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 30
[2021-07-10 09:08:11,915 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640393431]
[2021-07-10 09:08:11,915 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 31 states
[2021-07-10 09:08:11,915 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-10 09:08:11,915 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants.
[2021-07-10 09:08:11,916 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930
[2021-07-10 09:08:11,916 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:11,916 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-10 09:08:11,916 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 31 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 30 states have internal predecessors, (48), 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)
[2021-07-10 09:08:11,916 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-07-10 09:08:11,916 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-07-10 09:08:11,916 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:11,916 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:11,916 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. 
[2021-07-10 09:08:11,916 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-10 09:08:13,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-07-10 09:08:13,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-07-10 09:08:13,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:13,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-10 09:08:13,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2021-07-10 09:08:13,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. 
[2021-07-10 09:08:13,555 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-10 09:08:13,561 INFO  L247   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-07-10 09:08:13,562 INFO  L202        PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 09:08:13 BasicIcfg
[2021-07-10 09:08:13,562 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-07-10 09:08:13,562 INFO  L168              Benchmark]: Toolchain (without parser) took 6570.45 ms. Allocated memory was 190.8 MB in the beginning and 278.9 MB in the end (delta: 88.1 MB). Free memory was 170.5 MB in the beginning and 212.2 MB in the end (delta: -41.7 MB). Peak memory consumption was 47.0 MB. Max. memory is 8.0 GB.
[2021-07-10 09:08:13,562 INFO  L168              Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 190.8 MB. Free memory is still 171.7 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-07-10 09:08:13,562 INFO  L168              Benchmark]: Boogie Procedure Inliner took 19.88 ms. Allocated memory is still 190.8 MB. Free memory was 170.4 MB in the beginning and 169.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-07-10 09:08:13,563 INFO  L168              Benchmark]: Boogie Preprocessor took 14.40 ms. Allocated memory is still 190.8 MB. Free memory was 169.0 MB in the beginning and 168.0 MB in the end (delta: 942.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2021-07-10 09:08:13,563 INFO  L168              Benchmark]: RCFGBuilder took 235.65 ms. Allocated memory is still 190.8 MB. Free memory was 168.0 MB in the beginning and 154.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB.
[2021-07-10 09:08:13,563 INFO  L168              Benchmark]: TraceAbstraction took 6295.95 ms. Allocated memory was 190.8 MB in the beginning and 278.9 MB in the end (delta: 88.1 MB). Free memory was 154.0 MB in the beginning and 212.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB.
[2021-07-10 09:08:13,563 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 190.8 MB. Free memory is still 171.7 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * Boogie Procedure Inliner took 19.88 ms. Allocated memory is still 190.8 MB. Free memory was 170.4 MB in the beginning and 169.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 14.40 ms. Allocated memory is still 190.8 MB. Free memory was 169.0 MB in the beginning and 168.0 MB in the end (delta: 942.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 235.65 ms. Allocated memory is still 190.8 MB. Free memory was 168.0 MB in the beginning and 154.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 6295.95 ms. Allocated memory was 190.8 MB in the beginning and 278.9 MB in the end (delta: 88.1 MB). Free memory was 154.0 MB in the beginning and 212.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Independence relation benchmarks
    ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 650, positive: 556, positive conditional: 355, positive unconditional: 201, negative: 94, negative conditional: 88, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 565, positive: 556, positive conditional: 355, positive unconditional: 201, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 565, positive: 553, positive conditional: 0, positive unconditional: 553, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 135, positive: 133, positive conditional: 0, positive unconditional: 133, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 135, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 565, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 135, unknown conditional: 0, unknown unconditional: 135] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11 ], Maximal queried relation: 5, Independence queries for same thread: 85
  - StatisticsResult: Persistent set benchmarks
    Persistent set computation time[ms]: 70, Number of persistent set computation: 26, Number of trivial persistent sets: 7, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 650, positive: 556, positive conditional: 355, positive unconditional: 201, negative: 94, negative conditional: 88, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 565, positive: 556, positive conditional: 355, positive unconditional: 201, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 565, positive: 553, positive conditional: 0, positive unconditional: 553, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 135, positive: 133, positive conditional: 0, positive unconditional: 133, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 135, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 565, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 135, unknown conditional: 0, unknown unconditional: 135] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 31, positive conditional: 3, positive unconditional: 29, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 19, negative conditional: 8, negative unconditional: 11, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 134, Positive conditional cache size: 1, Positive unconditional cache size: 133, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 11 ], Maximal queried relation: 5, Independence queries for same thread: 85
  - PositiveResult [Line: 62]: assertion always holds
    For all program executions holds that assertion always holds at this location
  - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances
    CFG has 5 procedures, 36 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6243.0ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.3ms, PartialOrderReductionTime: 2121.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 35.6ms SsaConstructionTime, 197.0ms SatisfiabilityAnalysisTime, 2305.1ms InterpolantComputationTime, 428 NumberOfCodeBlocks, 428 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 416 ConstructedInterpolants, 8 QuantifiedInterpolants, 2838 SizeOfPredicates, 23 NumberOfNonLiveVariables, 612 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 306/506 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
Received shutdown request...