/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-DelaySleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl


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


This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57
[2021-07-01 10:32:28,014 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2021-07-01 10:32:28,071 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-07-01 10:32:28,071 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-DelaySleep-NoLbe-Lockstep.epf
[2021-07-01 10:32:28,094 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-07-01 10:32:28,094 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-07-01 10:32:28,094 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-07-01 10:32:28,094 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-07-01 10:32:28,096 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-07-01 10:32:28,096 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-07-01 10:32:28,096 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-07-01 10:32:28,097 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-07-01 10:32:28,097 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-07-01 10:32:28,097 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-07-01 10:32:28,097 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-07-01 10:32:28,097 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-07-01 10:32:28,097 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-07-01 10:32:28,098 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-07-01 10:32:28,098 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-07-01 10:32:28,098 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-07-01 10:32:28,098 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-07-01 10:32:28,098 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-07-01 10:32:28,098 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-07-01 10:32:28,098 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-07-01 10:32:28,098 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-07-01 10:32:28,098 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-07-01 10:32:28,098 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-07-01 10:32:28,099 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-07-01 10:32:28,099 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-07-01 10:32:28,099 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-07-01 10:32:28,099 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-07-01 10:32:28,099 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-07-01 10:32:28,099 INFO  L138        SettingsManager]:  * DFS Order used in POR=PSEUDO_LOCKSTEP
[2021-07-01 10:32:28,099 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-07-01 10:32:28,099 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-07-01 10:32:28,099 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-07-01 10:32:28,100 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-07-01 10:32:28,100 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET
[2021-07-01 10:32:28,100 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-07-01 10:32:28,333 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-07-01 10:32:28,351 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-07-01 10:32:28,352 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-07-01 10:32:28,353 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2021-07-01 10:32:28,354 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2021-07-01 10:32:28,354 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl
[2021-07-01 10:32:28,355 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl'
[2021-07-01 10:32:28,370 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-07-01 10:32:28,372 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2021-07-01 10:32:28,372 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-07-01 10:32:28,372 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-07-01 10:32:28,372 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-07-01 10:32:28,381 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:32:28" (1/1) ...
[2021-07-01 10:32:28,387 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:32:28" (1/1) ...
[2021-07-01 10:32:28,400 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-07-01 10:32:28,401 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-07-01 10:32:28,401 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-07-01 10:32:28,402 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-07-01 10:32:28,407 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:32:28" (1/1) ...
[2021-07-01 10:32:28,407 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:32:28" (1/1) ...
[2021-07-01 10:32:28,408 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:32:28" (1/1) ...
[2021-07-01 10:32:28,408 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:32:28" (1/1) ...
[2021-07-01 10:32:28,410 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:32:28" (1/1) ...
[2021-07-01 10:32:28,412 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:32:28" (1/1) ...
[2021-07-01 10:32:28,412 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:32:28" (1/1) ...
[2021-07-01 10:32:28,414 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-07-01 10:32:28,416 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-07-01 10:32:28,416 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-07-01 10:32:28,416 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-07-01 10:32:28,417 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:32:28" (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
[2021-07-01 10:32:28,480 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration
[2021-07-01 10:32:28,481 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert
[2021-07-01 10:32:28,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert
[2021-07-01 10:32:28,481 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration
[2021-07-01 10:32:28,481 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThread
[2021-07-01 10:32:28,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThread
[2021-07-01 10:32:28,481 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration
[2021-07-01 10:32:28,481 INFO  L130     BoogieDeclarations]: Found specification of procedure ServerThread
[2021-07-01 10:32:28,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure ServerThread
[2021-07-01 10:32:28,483 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2021-07-01 10:32:28,483 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-07-01 10:32:28,483 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-07-01 10:32:28,483 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-07-01 10:32:28,765 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-07-01 10:32:28,765 INFO  L299             CfgBuilder]: Removed 12 assume(true) statements.
[2021-07-01 10:32:28,766 WARN  L327             CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location.
[2021-07-01 10:32:28,766 WARN  L327             CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location.
[2021-07-01 10:32:28,767 INFO  L202        PluginConnector]: Adding new model bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:32:28 BoogieIcfgContainer
[2021-07-01 10:32:28,767 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-07-01 10:32:28,768 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-07-01 10:32:28,768 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-07-01 10:32:28,770 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-07-01 10:32:28,771 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:32:28" (1/2) ...
[2021-07-01 10:32:28,771 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34936c3e and model type bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:32:28, skipping insertion in model container
[2021-07-01 10:32:28,771 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:32:28" (2/2) ...
[2021-07-01 10:32:28,773 INFO  L111   eAbstractionObserver]: Analyzing ICFG bluetooth-correct08.bpl
[2021-07-01 10:32:28,776 WARN  L148   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-07-01 10:32:28,777 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-07-01 10:32:28,777 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-07-01 10:32:28,777 INFO  L474   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-07-01 10:32:28,836 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-07-01 10:32:28,867 INFO  L255      AbstractCegarLoop]: Starting to check reachability of 9 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
[2021-07-01 10:32:28,938 INFO  L378      AbstractCegarLoop]: Interprodecural is true
[2021-07-01 10:32:28,938 INFO  L379      AbstractCegarLoop]: Hoare is false
[2021-07-01 10:32:28,938 INFO  L380      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-07-01 10:32:28,938 INFO  L381      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-07-01 10:32:28,938 INFO  L382      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-07-01 10:32:28,938 INFO  L383      AbstractCegarLoop]: Difference is false
[2021-07-01 10:32:28,938 INFO  L384      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-07-01 10:32:28,938 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start========
[2021-07-01 10:32:41,436 INFO  L301   ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2)
[2021-07-01 10:32:41,438 INFO  L255      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-07-01 10:32:41,463 INFO  L378      AbstractCegarLoop]: Interprodecural is true
[2021-07-01 10:32:41,464 INFO  L379      AbstractCegarLoop]: Hoare is false
[2021-07-01 10:32:41,464 INFO  L380      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-07-01 10:32:41,464 INFO  L381      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-07-01 10:32:41,464 INFO  L382      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-07-01 10:32:41,464 INFO  L383      AbstractCegarLoop]: Difference is false
[2021-07-01 10:32:41,464 INFO  L384      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-07-01 10:32:41,464 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1========
[2021-07-01 10:32:41,495 INFO  L430      AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 10:32:41,499 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 10:32:41,499 INFO  L82        PathProgramCache]: Analyzing trace with hash -106371387, now seen corresponding path program 1 times
[2021-07-01 10:32:41,504 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 10:32:41,505 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079108917]
[2021-07-01 10:32:41,505 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 10:32:41,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:41,584 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-07-01 10:32:41,584 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 10:32:41,585 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079108917]
[2021-07-01 10:32:41,585 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079108917] provided 1 perfect and 0 imperfect interpolant sequences
[2021-07-01 10:32:41,585 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-07-01 10:32:41,585 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-07-01 10:32:41,586 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333851646]
[2021-07-01 10:32:41,590 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-07-01 10:32:41,590 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 10:32:41,597 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-07-01 10:32:41,600 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-07-01 10:32:41,600 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:41,601 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 10:32:41,602 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2021-07-01 10:32:41,602 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:41,840 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:41,841 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-07-01 10:32:41,841 INFO  L430      AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 10:32:41,847 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 10:32:41,847 INFO  L82        PathProgramCache]: Analyzing trace with hash -1804539990, now seen corresponding path program 1 times
[2021-07-01 10:32:41,847 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 10:32:41,848 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847489898]
[2021-07-01 10:32:41,849 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 10:32:41,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:41,866 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-07-01 10:32:41,866 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 10:32:41,867 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847489898]
[2021-07-01 10:32:41,867 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847489898] provided 1 perfect and 0 imperfect interpolant sequences
[2021-07-01 10:32:41,867 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-07-01 10:32:41,867 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-07-01 10:32:41,868 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233468769]
[2021-07-01 10:32:41,869 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-07-01 10:32:41,869 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 10:32:41,870 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-07-01 10:32:41,870 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-07-01 10:32:41,870 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:41,870 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 10:32:41,871 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2021-07-01 10:32:41,871 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:41,871 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:42,054 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:42,054 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:42,055 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-07-01 10:32:42,055 INFO  L430      AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 10:32:42,055 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 10:32:42,055 INFO  L82        PathProgramCache]: Analyzing trace with hash 419550825, now seen corresponding path program 1 times
[2021-07-01 10:32:42,055 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 10:32:42,055 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149852065]
[2021-07-01 10:32:42,056 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 10:32:42,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:42,118 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-07-01 10:32:42,119 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 10:32:42,119 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149852065]
[2021-07-01 10:32:42,119 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149852065] provided 1 perfect and 0 imperfect interpolant sequences
[2021-07-01 10:32:42,119 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-07-01 10:32:42,119 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-07-01 10:32:42,119 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146599784]
[2021-07-01 10:32:42,120 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-07-01 10:32:42,120 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 10:32:42,120 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-07-01 10:32:42,120 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2021-07-01 10:32:42,121 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:42,121 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 10:32:42,121 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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)
[2021-07-01 10:32:42,121 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:42,122 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:42,122 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:42,632 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:42,632 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:42,632 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:32:42,632 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-07-01 10:32:42,632 INFO  L430      AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 10:32:42,633 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 10:32:42,633 INFO  L82        PathProgramCache]: Analyzing trace with hash -630880240, now seen corresponding path program 1 times
[2021-07-01 10:32:42,633 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 10:32:42,633 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305989519]
[2021-07-01 10:32:42,634 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 10:32:42,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:42,725 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2021-07-01 10:32:42,725 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 10:32:42,725 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305989519]
[2021-07-01 10:32:42,725 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305989519] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:32:42,726 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294298282]
[2021-07-01 10:32:42,728 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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
[2021-07-01 10:32:42,776 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:42,778 INFO  L263         TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 29 conjunts are in the unsatisfiable core
[2021-07-01 10:32:42,783 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-01 10:32:42,933 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2021-07-01 10:32:42,933 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294298282] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:32:42,934 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-01 10:32:42,934 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2021-07-01 10:32:42,934 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653139389]
[2021-07-01 10:32:42,935 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 11 states
[2021-07-01 10:32:42,938 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 10:32:42,939 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2021-07-01 10:32:42,939 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-07-01 10:32:42,939 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:42,939 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 10:32:42,940 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 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)
[2021-07-01 10:32:42,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:42,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:42,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:32:42,940 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:43,313 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:43,314 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:43,314 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:32:43,314 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:32:43,532 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-01 10:32:43,533 INFO  L430      AbstractCegarLoop]: === Iteration 5 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 10:32:43,533 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 10:32:43,533 INFO  L82        PathProgramCache]: Analyzing trace with hash 591034584, now seen corresponding path program 1 times
[2021-07-01 10:32:43,533 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 10:32:43,533 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616844256]
[2021-07-01 10:32:43,533 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 10:32:43,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:43,633 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-07-01 10:32:43,633 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 10:32:43,633 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616844256]
[2021-07-01 10:32:43,633 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616844256] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:32:43,633 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357989302]
[2021-07-01 10:32:43,633 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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
[2021-07-01 10:32:43,673 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:43,674 INFO  L263         TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 39 conjunts are in the unsatisfiable core
[2021-07-01 10:32:43,676 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-01 10:32:43,792 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-07-01 10:32:43,792 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357989302] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:32:43,792 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-01 10:32:43,792 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2021-07-01 10:32:43,792 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537687053]
[2021-07-01 10:32:43,793 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 13 states
[2021-07-01 10:32:43,793 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 10:32:43,793 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-07-01 10:32:43,794 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156
[2021-07-01 10:32:43,794 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:43,794 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 10:32:43,794 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 12 states have internal predecessors, (73), 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)
[2021-07-01 10:32:43,794 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:43,795 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:43,795 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:32:43,795 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:32:43,795 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:44,564 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:44,564 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:44,564 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:32:44,564 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:32:44,565 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-07-01 10:32:44,780 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-01 10:32:44,781 INFO  L430      AbstractCegarLoop]: === Iteration 6 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 10:32:44,781 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 10:32:44,781 INFO  L82        PathProgramCache]: Analyzing trace with hash -1730103902, now seen corresponding path program 1 times
[2021-07-01 10:32:44,781 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 10:32:44,781 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631195230]
[2021-07-01 10:32:44,781 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 10:32:44,795 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:44,890 INFO  L134       CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2021-07-01 10:32:44,890 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 10:32:44,890 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631195230]
[2021-07-01 10:32:44,891 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631195230] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:32:44,891 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538025181]
[2021-07-01 10:32:44,891 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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
[2021-07-01 10:32:44,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:44,936 WARN  L261         TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 69 conjunts are in the unsatisfiable core
[2021-07-01 10:32:44,938 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-01 10:32:45,084 INFO  L134       CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2021-07-01 10:32:45,085 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538025181] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:32:45,085 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-01 10:32:45,085 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2021-07-01 10:32:45,085 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115221496]
[2021-07-01 10:32:45,085 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 15 states
[2021-07-01 10:32:45,085 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 10:32:45,086 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2021-07-01 10:32:45,086 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210
[2021-07-01 10:32:45,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:45,086 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 10:32:45,086 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 15 states, 15 states have (on average 6.0) internal successors, (90), 14 states have internal predecessors, (90), 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)
[2021-07-01 10:32:45,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:45,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:45,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:32:45,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:32:45,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-07-01 10:32:45,086 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:46,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:46,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:46,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:32:46,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:32:46,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-07-01 10:32:46,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2021-07-01 10:32:47,206 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2021-07-01 10:32:47,206 INFO  L430      AbstractCegarLoop]: === Iteration 7 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 10:32:47,206 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 10:32:47,206 INFO  L82        PathProgramCache]: Analyzing trace with hash 947247344, now seen corresponding path program 1 times
[2021-07-01 10:32:47,207 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 10:32:47,207 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549147704]
[2021-07-01 10:32:47,207 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 10:32:47,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:47,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 76 backedges. 42 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-07-01 10:32:47,368 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 10:32:47,368 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549147704]
[2021-07-01 10:32:47,368 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549147704] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:32:47,368 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848046533]
[2021-07-01 10:32:47,368 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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
[2021-07-01 10:32:47,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:47,411 WARN  L261         TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 99 conjunts are in the unsatisfiable core
[2021-07-01 10:32:47,412 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-01 10:32:47,673 INFO  L134       CoverageAnalysis]: Checked inductivity of 76 backedges. 4 proven. 57 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-07-01 10:32:47,673 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [848046533] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:32:47,673 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-01 10:32:47,673 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16
[2021-07-01 10:32:47,673 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806175723]
[2021-07-01 10:32:47,674 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 17 states
[2021-07-01 10:32:47,674 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 10:32:47,674 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2021-07-01 10:32:47,674 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272
[2021-07-01 10:32:47,674 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:47,674 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 10:32:47,675 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 17 states, 17 states have (on average 6.235294117647059) internal successors, (106), 16 states have internal predecessors, (106), 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)
[2021-07-01 10:32:47,675 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:47,675 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:47,675 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:32:47,675 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:32:47,675 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-07-01 10:32:47,675 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. 
[2021-07-01 10:32:47,675 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:53,996 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:53,996 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:53,996 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:32:53,996 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:32:53,996 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-07-01 10:32:53,996 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2021-07-01 10:32:54,002 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2021-07-01 10:32:54,220 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-01 10:32:54,220 INFO  L430      AbstractCegarLoop]: === Iteration 8 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 10:32:54,221 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 10:32:54,221 INFO  L82        PathProgramCache]: Analyzing trace with hash 1353299165, now seen corresponding path program 1 times
[2021-07-01 10:32:54,221 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 10:32:54,221 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554301617]
[2021-07-01 10:32:54,221 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 10:32:54,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:54,468 INFO  L134       CoverageAnalysis]: Checked inductivity of 122 backedges. 71 proven. 29 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2021-07-01 10:32:54,468 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 10:32:54,468 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554301617]
[2021-07-01 10:32:54,468 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554301617] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:32:54,468 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688174763]
[2021-07-01 10:32:54,468 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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
[2021-07-01 10:32:54,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:32:54,521 WARN  L261         TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 134 conjunts are in the unsatisfiable core
[2021-07-01 10:32:54,524 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-01 10:32:54,773 INFO  L134       CoverageAnalysis]: Checked inductivity of 122 backedges. 5 proven. 95 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2021-07-01 10:32:54,773 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [688174763] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:32:54,773 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-01 10:32:54,773 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18
[2021-07-01 10:32:54,773 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182452313]
[2021-07-01 10:32:54,774 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-07-01 10:32:54,774 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 10:32:54,775 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-07-01 10:32:54,775 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342
[2021-07-01 10:32:54,775 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:32:54,775 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 10:32:54,775 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 19 states, 19 states have (on average 6.7368421052631575) internal successors, (128), 18 states have internal predecessors, (128), 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)
[2021-07-01 10:32:54,775 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:54,775 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:32:54,775 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:32:54,775 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:32:54,775 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-07-01 10:32:54,775 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. 
[2021-07-01 10:32:54,775 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. 
[2021-07-01 10:32:54,776 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:33:23,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:33:23,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:33:23,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:33:23,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:33:23,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-07-01 10:33:23,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2021-07-01 10:33:23,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2021-07-01 10:33:23,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2021-07-01 10:33:23,751 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-01 10:33:23,752 INFO  L430      AbstractCegarLoop]: === Iteration 9 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 10:33:23,752 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 10:33:23,752 INFO  L82        PathProgramCache]: Analyzing trace with hash 1734008948, now seen corresponding path program 1 times
[2021-07-01 10:33:23,752 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 10:33:23,752 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126389034]
[2021-07-01 10:33:23,753 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 10:33:23,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:33:23,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 187 backedges. 94 proven. 53 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2021-07-01 10:33:23,959 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 10:33:23,959 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126389034]
[2021-07-01 10:33:23,959 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126389034] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:33:23,959 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423900011]
[2021-07-01 10:33:23,959 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-01 10:33:24,020 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:33:24,023 WARN  L261         TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 179 conjunts are in the unsatisfiable core
[2021-07-01 10:33:24,029 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-01 10:33:24,276 INFO  L134       CoverageAnalysis]: Checked inductivity of 187 backedges. 5 proven. 142 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2021-07-01 10:33:24,277 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [423900011] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:33:24,277 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-01 10:33:24,277 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-07-01 10:33:24,277 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649271137]
[2021-07-01 10:33:24,278 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 21 states
[2021-07-01 10:33:24,278 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 10:33:24,278 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2021-07-01 10:33:24,278 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420
[2021-07-01 10:33:24,278 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:33:24,278 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 10:33:24,279 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 21 states, 21 states have (on average 6.857142857142857) internal successors, (144), 20 states have internal predecessors, (144), 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)
[2021-07-01 10:33:24,279 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:33:24,279 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:33:24,279 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:33:24,279 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:33:24,279 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-07-01 10:33:24,279 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. 
[2021-07-01 10:33:24,279 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. 
[2021-07-01 10:33:24,279 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. 
[2021-07-01 10:33:24,279 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:36:47,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:36:47,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:36:47,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:36:47,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:36:47,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-07-01 10:36:47,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2021-07-01 10:36:47,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2021-07-01 10:36:47,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2021-07-01 10:36:47,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2021-07-01 10:36:48,005 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8
[2021-07-01 10:36:48,005 INFO  L430      AbstractCegarLoop]: === Iteration 10 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 10:36:48,005 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 10:36:48,006 INFO  L82        PathProgramCache]: Analyzing trace with hash -1706229015, now seen corresponding path program 1 times
[2021-07-01 10:36:48,006 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 10:36:48,006 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497227010]
[2021-07-01 10:36:48,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 10:36:48,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:36:48,290 INFO  L134       CoverageAnalysis]: Checked inductivity of 216 backedges. 123 proven. 52 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2021-07-01 10:36:48,290 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 10:36:48,290 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497227010]
[2021-07-01 10:36:48,290 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497227010] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:36:48,290 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522033628]
[2021-07-01 10:36:48,291 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-01 10:36:48,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 10:36:48,358 WARN  L261         TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 204 conjunts are in the unsatisfiable core
[2021-07-01 10:36:48,360 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-01 10:36:48,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 216 backedges. 5 proven. 170 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2021-07-01 10:36:48,685 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [522033628] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 10:36:48,685 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-01 10:36:48,685 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22
[2021-07-01 10:36:48,687 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493767787]
[2021-07-01 10:36:48,687 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 23 states
[2021-07-01 10:36:48,687 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 10:36:48,687 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2021-07-01 10:36:48,687 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506
[2021-07-01 10:36:48,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 10:36:48,687 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 10:36:48,688 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 23 states, 23 states have (on average 6.608695652173913) internal successors, (152), 22 states have internal predecessors, (152), 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)
[2021-07-01 10:36:48,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:36:48,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 10:36:48,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 10:36:48,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2021-07-01 10:36:48,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-07-01 10:36:48,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. 
[2021-07-01 10:36:48,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. 
[2021-07-01 10:36:48,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. 
[2021-07-01 10:36:48,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. 
[2021-07-01 10:36:48,688 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.