/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-NewStatesSleepUncond-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth09.bpl


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


This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483
[2021-06-24 20:27:21,223 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2021-06-24 20:27:21,274 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
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[2021-06-24 20:27:21,276 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2021-06-24 20:27:21,289 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-06-24 20:27:21,290 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2021-06-24 20:27:21,292 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2021-06-24 20:27:21,294 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2021-06-24 20:27:21,295 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2021-06-24 20:27:21,296 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-06-24 20:27:21,297 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-NewStatesSleepUncond-NoLbe.epf
[2021-06-24 20:27:21,323 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-06-24 20:27:21,323 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-06-24 20:27:21,324 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-06-24 20:27:21,324 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-06-24 20:27:21,326 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-06-24 20:27:21,326 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-06-24 20:27:21,326 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-06-24 20:27:21,326 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-06-24 20:27:21,326 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-06-24 20:27:21,326 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-06-24 20:27:21,327 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-06-24 20:27:21,327 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-06-24 20:27:21,327 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-06-24 20:27:21,327 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-06-24 20:27:21,327 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-06-24 20:27:21,327 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-06-24 20:27:21,327 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-06-24 20:27:21,327 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-06-24 20:27:21,327 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-06-24 20:27:21,328 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-06-24 20:27:21,328 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-06-24 20:27:21,328 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-06-24 20:27:21,328 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-06-24 20:27:21,328 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-06-24 20:27:21,328 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-06-24 20:27:21,328 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-06-24 20:27:21,328 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-06-24 20:27:21,328 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-06-24 20:27:21,328 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-06-24 20:27:21,329 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-06-24 20:27:21,329 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-06-24 20:27:21,329 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-06-24 20:27:21,329 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2021-06-24 20:27:21,329 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-06-24 20:27:21,329 INFO  L138        SettingsManager]:  * Use conditional POR in concurrent analysis=false
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-06-24 20:27:21,580 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-06-24 20:27:21,599 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-06-24 20:27:21,600 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-06-24 20:27:21,601 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2021-06-24 20:27:21,602 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2021-06-24 20:27:21,603 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth09.bpl
[2021-06-24 20:27:21,603 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth09.bpl'
[2021-06-24 20:27:21,627 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-06-24 20:27:21,629 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2021-06-24 20:27:21,629 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-06-24 20:27:21,629 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-06-24 20:27:21,630 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-06-24 20:27:21,639 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:27:21" (1/1) ...
[2021-06-24 20:27:21,645 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:27:21" (1/1) ...
[2021-06-24 20:27:21,657 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-06-24 20:27:21,658 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-06-24 20:27:21,658 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-06-24 20:27:21,658 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-06-24 20:27:21,663 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:27:21" (1/1) ...
[2021-06-24 20:27:21,664 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:27:21" (1/1) ...
[2021-06-24 20:27:21,664 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:27:21" (1/1) ...
[2021-06-24 20:27:21,664 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:27:21" (1/1) ...
[2021-06-24 20:27:21,665 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:27:21" (1/1) ...
[2021-06-24 20:27:21,667 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:27:21" (1/1) ...
[2021-06-24 20:27:21,667 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:27:21" (1/1) ...
[2021-06-24 20:27:21,668 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-06-24 20:27:21,669 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-06-24 20:27:21,669 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-06-24 20:27:21,670 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-06-24 20:27:21,670 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:27:21" (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
[2021-06-24 20:27:21,721 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration
[2021-06-24 20:27:21,721 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThread
[2021-06-24 20:27:21,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThread
[2021-06-24 20:27:21,721 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration
[2021-06-24 20:27:21,721 INFO  L130     BoogieDeclarations]: Found specification of procedure ServerThread
[2021-06-24 20:27:21,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure ServerThread
[2021-06-24 20:27:21,721 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2021-06-24 20:27:21,721 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-06-24 20:27:21,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-06-24 20:27:21,722 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-06-24 20:27:21,956 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-06-24 20:27:21,956 INFO  L299             CfgBuilder]: Removed 7 assume(true) statements.
[2021-06-24 20:27:21,957 WARN  L327             CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location.
[2021-06-24 20:27:21,958 INFO  L202        PluginConnector]: Adding new model bluetooth09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:27:21 BoogieIcfgContainer
[2021-06-24 20:27:21,958 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-06-24 20:27:21,960 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-06-24 20:27:21,960 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-06-24 20:27:21,962 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-06-24 20:27:21,973 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:27:21" (1/2) ...
[2021-06-24 20:27:21,974 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245400c3 and model type bluetooth09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:27:21, skipping insertion in model container
[2021-06-24 20:27:21,974 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:27:21" (2/2) ...
[2021-06-24 20:27:21,981 INFO  L111   eAbstractionObserver]: Analyzing ICFG bluetooth09.bpl
[2021-06-24 20:27:21,985 WARN  L148   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-06-24 20:27:21,985 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-06-24 20:27:21,986 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-06-24 20:27:21,986 INFO  L474   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-06-24 20:27:22,027 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-06-24 20:27:22,043 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 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
[2021-06-24 20:27:22,115 INFO  L378      AbstractCegarLoop]: Interprodecural is true
[2021-06-24 20:27:22,115 INFO  L379      AbstractCegarLoop]: Hoare is false
[2021-06-24 20:27:22,116 INFO  L380      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-06-24 20:27:22,116 INFO  L381      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-06-24 20:27:22,116 INFO  L382      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-06-24 20:27:22,116 INFO  L383      AbstractCegarLoop]: Difference is false
[2021-06-24 20:27:22,116 INFO  L384      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-06-24 20:27:22,116 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork8========
[2021-06-24 20:27:22,172 INFO  L430      AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]===
[2021-06-24 20:27:22,176 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-24 20:27:22,177 INFO  L82        PathProgramCache]: Analyzing trace with hash 1472069048, now seen corresponding path program 1 times
[2021-06-24 20:27:22,182 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-24 20:27:22,183 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413984341]
[2021-06-24 20:27:22,183 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-24 20:27:22,249 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-24 20:27:22,303 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-24 20:27:22,303 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-24 20:27:22,304 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413984341]
[2021-06-24 20:27:22,305 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413984341] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-24 20:27:22,305 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-24 20:27:22,305 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-24 20:27:22,305 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102145730]
[2021-06-24 20:27:22,311 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-06-24 20:27:22,311 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-24 20:27:22,318 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-06-24 20:27:22,320 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-06-24 20:27:22,320 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:27:22,322 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-24 20:27:22,324 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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)
[2021-06-24 20:27:22,325 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:27:23,104 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:23,105 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-06-24 20:27:23,105 INFO  L430      AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]===
[2021-06-24 20:27:23,107 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-24 20:27:23,107 INFO  L82        PathProgramCache]: Analyzing trace with hash 1553585739, now seen corresponding path program 1 times
[2021-06-24 20:27:23,108 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-24 20:27:23,108 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347773002]
[2021-06-24 20:27:23,108 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-24 20:27:23,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-24 20:27:23,137 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-24 20:27:23,138 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-24 20:27:23,138 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347773002]
[2021-06-24 20:27:23,138 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347773002] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-24 20:27:23,138 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-24 20:27:23,138 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-06-24 20:27:23,138 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896159157]
[2021-06-24 20:27:23,139 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-06-24 20:27:23,139 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-24 20:27:23,141 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-06-24 20:27:23,141 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-06-24 20:27:23,141 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:27:23,141 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-24 20:27:23,141 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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)
[2021-06-24 20:27:23,142 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:23,142 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:27:23,492 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:23,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:23,493 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-06-24 20:27:23,493 INFO  L430      AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]===
[2021-06-24 20:27:23,494 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-24 20:27:23,494 INFO  L82        PathProgramCache]: Analyzing trace with hash -1734174490, now seen corresponding path program 1 times
[2021-06-24 20:27:23,494 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-24 20:27:23,494 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448302278]
[2021-06-24 20:27:23,494 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-24 20:27:23,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-24 20:27:23,617 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-06-24 20:27:23,617 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-24 20:27:23,618 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448302278]
[2021-06-24 20:27:23,618 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448302278] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-24 20:27:23,618 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-24 20:27:23,618 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-06-24 20:27:23,618 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006664849]
[2021-06-24 20:27:23,618 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-24 20:27:23,618 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-24 20:27:23,619 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-24 20:27:23,619 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42
[2021-06-24 20:27:23,619 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:27:23,619 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-24 20:27:23,619 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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)
[2021-06-24 20:27:23,619 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:23,619 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:23,619 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:27:24,008 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:24,008 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:24,009 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-06-24 20:27:24,009 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-06-24 20:27:24,009 INFO  L430      AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]===
[2021-06-24 20:27:24,009 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-24 20:27:24,010 INFO  L82        PathProgramCache]: Analyzing trace with hash -979878767, now seen corresponding path program 1 times
[2021-06-24 20:27:24,010 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-24 20:27:24,011 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141356518]
[2021-06-24 20:27:24,011 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-24 20:27:24,041 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-24 20:27:24,126 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2021-06-24 20:27:24,126 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-24 20:27:24,126 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141356518]
[2021-06-24 20:27:24,126 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141356518] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-24 20:27:24,126 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759786366]
[2021-06-24 20:27:24,126 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
[2021-06-24 20:27:24,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-24 20:27:24,168 INFO  L263         TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 44 conjunts are in the unsatisfiable core
[2021-06-24 20:27:24,172 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-06-24 20:27:24,351 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2021-06-24 20:27:24,352 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [759786366] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-24 20:27:24,352 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-24 20:27:24,352 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2021-06-24 20:27:24,352 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259354151]
[2021-06-24 20:27:24,352 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 13 states
[2021-06-24 20:27:24,352 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-24 20:27:24,353 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-06-24 20:27:24,353 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156
[2021-06-24 20:27:24,353 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:27:24,353 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-24 20:27:24,353 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 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)
[2021-06-24 20:27:24,353 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:24,354 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:24,354 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-06-24 20:27:24,354 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:27:25,231 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:25,231 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:25,231 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-06-24 20:27:25,231 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-06-24 20:27:25,449 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-24 20:27:25,449 INFO  L430      AbstractCegarLoop]: === Iteration 5 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]===
[2021-06-24 20:27:25,449 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-24 20:27:25,449 INFO  L82        PathProgramCache]: Analyzing trace with hash 1809928078, now seen corresponding path program 1 times
[2021-06-24 20:27:25,450 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-24 20:27:25,450 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575406280]
[2021-06-24 20:27:25,450 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-24 20:27:25,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-24 20:27:25,696 INFO  L134       CoverageAnalysis]: Checked inductivity of 172 backedges. 109 proven. 5 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked.
[2021-06-24 20:27:25,696 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-24 20:27:25,696 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575406280]
[2021-06-24 20:27:25,696 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575406280] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-24 20:27:25,696 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058935139]
[2021-06-24 20:27:25,696 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
[2021-06-24 20:27:25,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-24 20:27:25,747 WARN  L261         TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 109 conjunts are in the unsatisfiable core
[2021-06-24 20:27:25,762 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-06-24 20:27:25,978 INFO  L134       CoverageAnalysis]: Checked inductivity of 172 backedges. 2 proven. 112 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked.
[2021-06-24 20:27:25,978 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058935139] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-24 20:27:25,978 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-24 20:27:25,978 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2021-06-24 20:27:25,978 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420983260]
[2021-06-24 20:27:25,979 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 15 states
[2021-06-24 20:27:25,980 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-24 20:27:25,980 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2021-06-24 20:27:25,981 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210
[2021-06-24 20:27:25,981 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:27:25,981 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-24 20:27:25,982 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 15 states, 15 states have (on average 7.4) internal successors, (111), 14 states have internal predecessors, (111), 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)
[2021-06-24 20:27:25,982 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:25,982 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:25,982 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-06-24 20:27:25,982 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-06-24 20:27:25,982 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:27:31,332 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:31,332 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:31,333 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-06-24 20:27:31,333 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-06-24 20:27:31,333 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2021-06-24 20:27:31,544 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-24 20:27:31,545 INFO  L430      AbstractCegarLoop]: === Iteration 6 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]===
[2021-06-24 20:27:31,545 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-24 20:27:31,545 INFO  L82        PathProgramCache]: Analyzing trace with hash -1053318654, now seen corresponding path program 1 times
[2021-06-24 20:27:31,546 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-24 20:27:31,546 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782917311]
[2021-06-24 20:27:31,546 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-24 20:27:31,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-24 20:27:32,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 1893 backedges. 1170 proven. 90 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked.
[2021-06-24 20:27:32,070 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-24 20:27:32,070 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782917311]
[2021-06-24 20:27:32,070 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782917311] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-24 20:27:32,070 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515399689]
[2021-06-24 20:27:32,070 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
[2021-06-24 20:27:32,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-24 20:27:32,192 WARN  L261         TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 344 conjunts are in the unsatisfiable core
[2021-06-24 20:27:32,204 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-06-24 20:27:32,692 INFO  L134       CoverageAnalysis]: Checked inductivity of 1893 backedges. 2 proven. 1258 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked.
[2021-06-24 20:27:32,692 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [515399689] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-24 20:27:32,693 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-24 20:27:32,693 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16
[2021-06-24 20:27:32,693 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829595241]
[2021-06-24 20:27:32,694 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 17 states
[2021-06-24 20:27:32,694 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-24 20:27:32,695 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2021-06-24 20:27:32,696 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272
[2021-06-24 20:27:32,696 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:27:32,696 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-24 20:27:32,696 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 16 states have internal predecessors, (143), 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)
[2021-06-24 20:27:32,696 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:32,696 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:27:32,696 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-06-24 20:27:32,696 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-06-24 20:27:32,696 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. 
[2021-06-24 20:27:32,697 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:28:18,205 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:28:18,205 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:28:18,205 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-06-24 20:28:18,205 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-06-24 20:28:18,205 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2021-06-24 20:28:18,206 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2021-06-24 20:28:18,408 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-24 20:28:18,409 INFO  L430      AbstractCegarLoop]: === Iteration 7 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]===
[2021-06-24 20:28:18,409 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-24 20:28:18,410 INFO  L82        PathProgramCache]: Analyzing trace with hash -1223643097, now seen corresponding path program 1 times
[2021-06-24 20:28:18,410 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-24 20:28:18,410 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332746457]
[2021-06-24 20:28:18,410 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-24 20:28:18,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-24 20:28:20,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 15103 backedges. 9525 proven. 1020 refuted. 0 times theorem prover too weak. 4558 trivial. 0 not checked.
[2021-06-24 20:28:20,854 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-24 20:28:20,855 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332746457]
[2021-06-24 20:28:20,855 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332746457] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-24 20:28:20,855 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646733860]
[2021-06-24 20:28:20,855 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
[2021-06-24 20:28:21,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-24 20:28:21,071 WARN  L261         TraceCheckSpWp]: Trace formula consists of 1362 conjuncts, 949 conjunts are in the unsatisfiable core
[2021-06-24 20:28:21,081 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-06-24 20:28:22,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 15103 backedges. 2 proven. 10543 refuted. 0 times theorem prover too weak. 4558 trivial. 0 not checked.
[2021-06-24 20:28:22,021 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [646733860] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-24 20:28:22,021 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-24 20:28:22,022 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18
[2021-06-24 20:28:22,022 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187000860]
[2021-06-24 20:28:22,023 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-24 20:28:22,023 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-24 20:28:22,023 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-24 20:28:22,023 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342
[2021-06-24 20:28:22,024 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-06-24 20:28:22,024 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-24 20:28:22,024 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 19 states, 19 states have (on average 9.526315789473685) internal successors, (181), 18 states have internal predecessors, (181), 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)
[2021-06-24 20:28:22,026 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:28:22,026 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-06-24 20:28:22,026 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-06-24 20:28:22,026 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-06-24 20:28:22,026 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. 
[2021-06-24 20:28:22,026 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. 
[2021-06-24 20:28:22,026 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.