/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-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl


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


This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57
[2021-07-01 11:27:12,696 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-07-01 11:27:12,698 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-07-01 11:27:12,728 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-07-01 11:27:12,729 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-07-01 11:27:12,732 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-07-01 11:27:12,734 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-07-01 11:27:12,738 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-07-01 11:27:12,739 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-07-01 11:27:12,740 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-07-01 11:27:12,741 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-07-01 11:27:12,742 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-07-01 11:27:12,742 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-07-01 11:27:12,743 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-07-01 11:27:12,744 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-07-01 11:27:12,745 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-07-01 11:27:12,745 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-07-01 11:27:12,746 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-07-01 11:27:12,747 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-07-01 11:27:12,748 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-07-01 11:27:12,750 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-07-01 11:27:12,751 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-07-01 11:27:12,752 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-07-01 11:27:12,752 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-07-01 11:27:12,755 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-07-01 11:27:12,755 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-07-01 11:27:12,755 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-07-01 11:27:12,756 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-07-01 11:27:12,756 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-07-01 11:27:12,757 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-07-01 11:27:12,757 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-07-01 11:27:12,758 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-07-01 11:27:12,758 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-07-01 11:27:12,759 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-07-01 11:27:12,760 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-07-01 11:27:12,760 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-07-01 11:27:12,761 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-07-01 11:27:12,761 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-07-01 11:27:12,761 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-07-01 11:27:12,762 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-07-01 11:27:12,762 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-07-01 11:27:12,763 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-NewStatesSleep-NoLbe-Random42.epf
[2021-07-01 11:27:12,829 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-07-01 11:27:12,829 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-07-01 11:27:12,831 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-07-01 11:27:12,831 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-07-01 11:27:12,832 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-07-01 11:27:12,832 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-07-01 11:27:12,832 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-07-01 11:27:12,833 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-07-01 11:27:12,833 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-07-01 11:27:12,833 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-07-01 11:27:12,833 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-07-01 11:27:12,833 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-07-01 11:27:12,833 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-07-01 11:27:12,834 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-07-01 11:27:12,834 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-07-01 11:27:12,834 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-07-01 11:27:12,834 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-07-01 11:27:12,834 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-07-01 11:27:12,834 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-07-01 11:27:12,834 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-07-01 11:27:12,835 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-07-01 11:27:12,835 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-07-01 11:27:12,835 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-07-01 11:27:12,835 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-07-01 11:27:12,835 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-07-01 11:27:12,835 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-07-01 11:27:12,836 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-07-01 11:27:12,836 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-07-01 11:27:12,836 INFO  L138        SettingsManager]:  * DFS Order used in POR=RANDOM
[2021-07-01 11:27:12,836 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-07-01 11:27:12,836 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-07-01 11:27:12,836 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-07-01 11:27:12,836 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-07-01 11:27:12,837 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2021-07-01 11:27:12,837 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-07-01 11:27:12,837 INFO  L138        SettingsManager]:  * Random seed used by POR DFS order=42
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-07-01 11:27:13,139 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-07-01 11:27:13,156 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-07-01 11:27:13,158 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-07-01 11:27:13,159 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2021-07-01 11:27:13,160 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2021-07-01 11:27:13,161 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl
[2021-07-01 11:27:13,161 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl'
[2021-07-01 11:27:13,183 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-07-01 11:27:13,185 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2021-07-01 11:27:13,190 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-07-01 11:27:13,190 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-07-01 11:27:13,190 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-07-01 11:27:13,202 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:13" (1/1) ...
[2021-07-01 11:27:13,208 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:13" (1/1) ...
[2021-07-01 11:27:13,220 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-07-01 11:27:13,221 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-07-01 11:27:13,221 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-07-01 11:27:13,221 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-07-01 11:27:13,226 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:13" (1/1) ...
[2021-07-01 11:27:13,227 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:13" (1/1) ...
[2021-07-01 11:27:13,227 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:13" (1/1) ...
[2021-07-01 11:27:13,227 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:13" (1/1) ...
[2021-07-01 11:27:13,229 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:13" (1/1) ...
[2021-07-01 11:27:13,231 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:13" (1/1) ...
[2021-07-01 11:27:13,232 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:13" (1/1) ...
[2021-07-01 11:27:13,233 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-07-01 11:27:13,234 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-07-01 11:27:13,234 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-07-01 11:27:13,234 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-07-01 11:27:13,235 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:13" (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 11:27:13,310 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration
[2021-07-01 11:27:13,310 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert
[2021-07-01 11:27:13,310 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert
[2021-07-01 11:27:13,311 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration
[2021-07-01 11:27:13,311 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThread
[2021-07-01 11:27:13,311 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThread
[2021-07-01 11:27:13,311 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration
[2021-07-01 11:27:13,311 INFO  L130     BoogieDeclarations]: Found specification of procedure ServerThread
[2021-07-01 11:27:13,311 INFO  L138     BoogieDeclarations]: Found implementation of procedure ServerThread
[2021-07-01 11:27:13,311 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2021-07-01 11:27:13,311 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-07-01 11:27:13,311 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-07-01 11:27:13,312 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 11:27:13,508 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-07-01 11:27:13,509 INFO  L299             CfgBuilder]: Removed 12 assume(true) statements.
[2021-07-01 11:27:13,509 WARN  L327             CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location.
[2021-07-01 11:27:13,510 WARN  L327             CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location.
[2021-07-01 11:27:13,511 INFO  L202        PluginConnector]: Adding new model bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:27:13 BoogieIcfgContainer
[2021-07-01 11:27:13,511 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-07-01 11:27:13,513 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-07-01 11:27:13,513 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-07-01 11:27:13,515 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-07-01 11:27:13,515 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:27:13" (1/2) ...
[2021-07-01 11:27:13,516 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56823de6 and model type bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:27:13, skipping insertion in model container
[2021-07-01 11:27:13,516 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:27:13" (2/2) ...
[2021-07-01 11:27:13,517 INFO  L111   eAbstractionObserver]: Analyzing ICFG bluetooth-customized08.bpl
[2021-07-01 11:27:13,522 WARN  L148   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-07-01 11:27:13,522 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-07-01 11:27:13,522 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-07-01 11:27:13,523 INFO  L474   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-07-01 11:27:13,576 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-07-01 11:27:13,596 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 11:27:13,636 INFO  L378      AbstractCegarLoop]: Interprodecural is true
[2021-07-01 11:27:13,639 INFO  L379      AbstractCegarLoop]: Hoare is false
[2021-07-01 11:27:13,653 INFO  L380      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-07-01 11:27:13,653 INFO  L381      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-07-01 11:27:13,653 INFO  L382      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-07-01 11:27:13,653 INFO  L383      AbstractCegarLoop]: Difference is false
[2021-07-01 11:27:13,653 INFO  L384      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-07-01 11:27:13,653 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start========
[2021-07-01 11:30:02,436 INFO  L301   ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2)
[2021-07-01 11:30:02,438 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 11:30:02,517 INFO  L378      AbstractCegarLoop]: Interprodecural is true
[2021-07-01 11:30:02,518 INFO  L379      AbstractCegarLoop]: Hoare is false
[2021-07-01 11:30:02,518 INFO  L380      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-07-01 11:30:02,518 INFO  L381      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-07-01 11:30:02,518 INFO  L382      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-07-01 11:30:02,518 INFO  L383      AbstractCegarLoop]: Difference is false
[2021-07-01 11:30:02,518 INFO  L384      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-07-01 11:30:02,518 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1========
[2021-07-01 11:30:02,523 INFO  L430      AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 11:30:02,548 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 11:30:02,548 INFO  L82        PathProgramCache]: Analyzing trace with hash 354274110, now seen corresponding path program 1 times
[2021-07-01 11:30:02,568 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 11:30:02,568 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035645319]
[2021-07-01 11:30:02,568 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 11:30:02,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 11:30:02,701 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 11:30:02,702 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 11:30:02,702 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035645319]
[2021-07-01 11:30:02,703 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035645319] provided 1 perfect and 0 imperfect interpolant sequences
[2021-07-01 11:30:02,703 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-07-01 11:30:02,703 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-07-01 11:30:02,704 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856117977]
[2021-07-01 11:30:02,708 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-07-01 11:30:02,708 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 11:30:02,717 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-07-01 11:30:02,720 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-07-01 11:30:02,720 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 11:30:02,722 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 11:30:02,722 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 11:30:02,722 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 11:30:02,982 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 11:30:02,983 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-07-01 11:30:02,983 INFO  L430      AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 11:30:02,983 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 11:30:02,983 INFO  L82        PathProgramCache]: Analyzing trace with hash 440772010, now seen corresponding path program 1 times
[2021-07-01 11:30:02,984 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 11:30:02,984 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859845347]
[2021-07-01 11:30:02,984 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 11:30:02,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 11:30:03,004 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 11:30:03,005 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 11:30:03,005 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859845347]
[2021-07-01 11:30:03,005 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859845347] provided 1 perfect and 0 imperfect interpolant sequences
[2021-07-01 11:30:03,005 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-07-01 11:30:03,006 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-07-01 11:30:03,006 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358029395]
[2021-07-01 11:30:03,007 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-07-01 11:30:03,007 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 11:30:03,007 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-07-01 11:30:03,008 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-07-01 11:30:03,008 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 11:30:03,008 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 11:30:03,008 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 4 states, 3 states have (on average 2.6666666666666665) 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 11:30:03,008 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 11:30:03,008 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 11:30:03,761 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 11:30:03,762 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-07-01 11:30:03,762 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-07-01 11:30:03,762 INFO  L430      AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 11:30:03,763 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 11:30:03,763 INFO  L82        PathProgramCache]: Analyzing trace with hash 1813584270, now seen corresponding path program 1 times
[2021-07-01 11:30:03,763 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 11:30:03,763 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107088423]
[2021-07-01 11:30:03,763 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 11:30:03,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 11:30:03,851 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-07-01 11:30:03,852 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 11:30:03,852 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107088423]
[2021-07-01 11:30:03,852 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107088423] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 11:30:03,852 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838667673]
[2021-07-01 11:30:03,852 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 11:30:04,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 11:30:04,081 INFO  L263         TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-07-01 11:30:04,086 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-01 11:30:04,186 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-07-01 11:30:04,186 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838667673] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 11:30:04,186 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-01 11:30:04,186 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3
[2021-07-01 11:30:04,187 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435273497]
[2021-07-01 11:30:04,187 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-07-01 11:30:04,187 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 11:30:04,188 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-07-01 11:30:04,188 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2021-07-01 11:30:04,188 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 11:30:04,188 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 11:30:04,188 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 11:30:04,188 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 11:30:04,188 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-07-01 11:30:04,188 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 11:30:04,896 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 11:30:04,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-07-01 11:30:04,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 11:30:05,119 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-01 11:30:05,119 INFO  L430      AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 11:30:05,120 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 11:30:05,120 INFO  L82        PathProgramCache]: Analyzing trace with hash -1098331140, now seen corresponding path program 1 times
[2021-07-01 11:30:05,120 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 11:30:05,120 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689374759]
[2021-07-01 11:30:05,121 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 11:30:05,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 11:30:05,237 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2021-07-01 11:30:05,237 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 11:30:05,237 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689374759]
[2021-07-01 11:30:05,237 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689374759] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 11:30:05,238 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496586132]
[2021-07-01 11:30:05,238 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 11:30:05,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 11:30:05,292 INFO  L263         TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-07-01 11:30:05,294 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-01 11:30:05,487 INFO  L134       CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2021-07-01 11:30:05,488 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496586132] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 11:30:05,488 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-01 11:30:05,488 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4
[2021-07-01 11:30:05,488 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405661688]
[2021-07-01 11:30:05,489 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-07-01 11:30:05,489 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 11:30:05,489 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-07-01 11:30:05,489 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-07-01 11:30:05,490 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 11:30:05,490 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 11:30:05,490 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 11:30:05,490 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 11:30:05,490 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-07-01 11:30:05,490 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 11:30:05,490 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 11:30:07,346 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 11:30:07,346 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-07-01 11:30:07,346 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 11:30:07,347 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-07-01 11:30:07,567 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-01 11:30:07,567 INFO  L430      AbstractCegarLoop]: === Iteration 5 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 11:30:07,567 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 11:30:07,567 INFO  L82        PathProgramCache]: Analyzing trace with hash 175851341, now seen corresponding path program 1 times
[2021-07-01 11:30:07,568 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 11:30:07,568 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300422727]
[2021-07-01 11:30:07,568 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 11:30:07,584 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 11:30:07,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-07-01 11:30:07,653 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 11:30:07,653 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300422727]
[2021-07-01 11:30:07,653 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300422727] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 11:30:07,654 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168232178]
[2021-07-01 11:30:07,654 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 11:30:07,687 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 11:30:07,688 INFO  L263         TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 18 conjunts are in the unsatisfiable core
[2021-07-01 11:30:07,689 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-01 11:30:07,763 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-07-01 11:30:07,764 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [168232178] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 11:30:07,764 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-01 11:30:07,764 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2021-07-01 11:30:07,764 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484319358]
[2021-07-01 11:30:07,764 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-07-01 11:30:07,764 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 11:30:07,765 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-07-01 11:30:07,765 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2021-07-01 11:30:07,765 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 11:30:07,765 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 11:30:07,765 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-07-01 11:30:07,765 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 11:30:07,766 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-07-01 11:30:07,766 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 11:30:07,766 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-07-01 11:30:07,766 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 11:30:09,130 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 11:30:09,130 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-07-01 11:30:09,130 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 11:30:09,130 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-07-01 11:30:09,131 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-07-01 11:30:09,359 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-07-01 11:30:09,359 INFO  L430      AbstractCegarLoop]: === Iteration 6 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]===
[2021-07-01 11:30:09,360 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-07-01 11:30:09,360 INFO  L82        PathProgramCache]: Analyzing trace with hash 123795148, now seen corresponding path program 1 times
[2021-07-01 11:30:09,360 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-07-01 11:30:09,360 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436855053]
[2021-07-01 11:30:09,360 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-07-01 11:30:09,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 11:30:09,441 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-07-01 11:30:09,441 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-07-01 11:30:09,441 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436855053]
[2021-07-01 11:30:09,441 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436855053] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 11:30:09,441 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676128336]
[2021-07-01 11:30:09,441 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 11:30:09,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-07-01 11:30:09,487 INFO  L263         TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 20 conjunts are in the unsatisfiable core
[2021-07-01 11:30:09,490 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-07-01 11:30:09,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-07-01 11:30:09,612 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676128336] provided 0 perfect and 1 imperfect interpolant sequences
[2021-07-01 11:30:09,612 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-07-01 11:30:09,613 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 14
[2021-07-01 11:30:09,613 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720909745]
[2021-07-01 11:30:09,614 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 14 states
[2021-07-01 11:30:09,614 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-07-01 11:30:09,615 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-07-01 11:30:09,616 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182
[2021-07-01 11:30:09,617 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-07-01 11:30:09,617 INFO  L482      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-07-01 11:30:09,617 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 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 11:30:09,617 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-07-01 11:30:09,617 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-07-01 11:30:09,617 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-07-01 11:30:09,617 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-07-01 11:30:09,617 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2021-07-01 11:30:09,617 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.