/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-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 10:04:07,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 10:04:07,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 10:04:08,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-01 10:04:08,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-01 10:04:08,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-01 10:04:08,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-01 10:04:08,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-01 10:04:08,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-01 10:04:08,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-01 10:04:08,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-01 10:04:08,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-01 10:04:08,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 10:04:08,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 10:04:08,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 10:04:08,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 10:04:08,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 10:04:08,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 10:04:08,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 10:04:08,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 10:04:08,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 10:04:08,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 10:04:08,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 10:04:08,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 10:04:08,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 10:04:08,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-01 10:04:08,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-01 10:04:08,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-01 10:04:08,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-01 10:04:08,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-01 10:04:08,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-01 10:04:08,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-01 10:04:08,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-01 10:04:08,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 10:04:08,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 10:04:08,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 10:04:08,070 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-FA-NoLbe-Delay.epf [2021-07-01 10:04:08,098 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 10:04:08,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 10:04:08,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 10:04:08,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 10:04:08,101 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 10:04:08,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 10:04:08,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 10:04:08,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 10:04:08,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 10:04:08,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 10:04:08,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 10:04:08,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 10:04:08,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 10:04:08,103 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 10:04:08,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 10:04:08,103 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 10:04:08,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 10:04:08,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 10:04:08,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 10:04:08,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 10:04:08,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 10:04:08,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 10:04:08,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 10:04:08,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 10:04:08,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 10:04:08,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 10:04:08,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 10:04:08,121 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 10:04:08,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 10:04:08,122 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-01 10:04:08,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 10:04:08,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 10:04:08,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 10:04:08,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 10:04:08,397 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 10:04:08,397 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 10:04:08,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized03.bpl [2021-07-01 10:04:08,398 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized03.bpl' [2021-07-01 10:04:08,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 10:04:08,415 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 10:04:08,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 10:04:08,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 10:04:08,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 10:04:08,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:04:08" (1/1) ... [2021-07-01 10:04:08,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:04:08" (1/1) ... [2021-07-01 10:04:08,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 10:04:08,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 10:04:08,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 10:04:08,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 10:04:08,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:04:08" (1/1) ... [2021-07-01 10:04:08,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:04:08" (1/1) ... [2021-07-01 10:04:08,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:04:08" (1/1) ... [2021-07-01 10:04:08,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:04:08" (1/1) ... [2021-07-01 10:04:08,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:04:08" (1/1) ... [2021-07-01 10:04:08,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:04:08" (1/1) ... [2021-07-01 10:04:08,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:04:08" (1/1) ... [2021-07-01 10:04:08,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 10:04:08,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 10:04:08,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 10:04:08,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 10:04:08,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:04:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 10:04:08,506 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 10:04:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 10:04:08,506 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 10:04:08,506 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 10:04:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 10:04:08,506 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 10:04:08,506 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 10:04:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 10:04:08,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 10:04:08,507 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 10:04:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 10:04:08,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 10:04:08,507 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 10:04:08,753 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 10:04:08,754 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 10:04:08,754 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-01 10:04:08,755 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 10:04:08,756 INFO L202 PluginConnector]: Adding new model bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:04:08 BoogieIcfgContainer [2021-07-01 10:04:08,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 10:04:08,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 10:04:08,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 10:04:08,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 10:04:08,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:04:08" (1/2) ... [2021-07-01 10:04:08,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f5dc1f and model type bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:04:08, skipping insertion in model container [2021-07-01 10:04:08,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:04:08" (2/2) ... [2021-07-01 10:04:08,761 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-customized03.bpl [2021-07-01 10:04:08,781 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 10:04:08,781 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 10:04:08,782 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 10:04:08,782 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 10:04:08,811 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 10:04:08,828 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-01 10:04:08,851 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:04:08,851 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:04:08,851 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:04:08,851 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:04:08,851 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:04:08,851 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:04:08,851 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:04:08,851 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 10:04:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 110 states have (on average 1.6090909090909091) internal successors, (177), 130 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,043 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-01 10:04:09,044 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 10:04:09,046 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-01 10:04:09,051 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:04:09,051 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:04:09,051 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:04:09,051 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:04:09,051 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:04:09,051 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:04:09,051 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:04:09,051 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 10:04:09,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 539 states, 475 states have (on average 3.3178947368421055) internal successors, (1576), 538 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-01 10:04:09,216 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 10:04:09,216 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 10:04:09,217 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:04:09,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:04:09,220 INFO L82 PathProgramCache]: Analyzing trace with hash 377310302, now seen corresponding path program 1 times [2021-07-01 10:04:09,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:04:09,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504151891] [2021-07-01 10:04:09,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:04:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:04:09,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 10:04:09,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:04:09,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504151891] [2021-07-01 10:04:09,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504151891] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:04:09,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:04:09,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 10:04:09,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915692675] [2021-07-01 10:04:09,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-01 10:04:09,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:04:09,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-01 10:04:09,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-01 10:04:09,328 INFO L87 Difference]: Start difference. First operand has 539 states, 475 states have (on average 3.3178947368421055) internal successors, (1576), 538 states have internal predecessors, (1576), 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) Second operand 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 10:04:09,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 10:04:09,408 INFO L93 Difference]: Finished difference Result 1071 states and 3125 transitions. [2021-07-01 10:04:09,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-01 10:04:09,409 INFO L78 Accepts]: Start accepts. 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) Word has length 8 [2021-07-01 10:04:09,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 10:04:09,429 INFO L225 Difference]: With dead ends: 1071 [2021-07-01 10:04:09,429 INFO L226 Difference]: Without dead ends: 883 [2021-07-01 10:04:09,430 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-01 10:04:09,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-07-01 10:04:09,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 835. [2021-07-01 10:04:09,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 817 states have (on average 3.3157894736842106) internal successors, (2709), 834 states have internal predecessors, (2709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 2709 transitions. [2021-07-01 10:04:09,568 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 2709 transitions. Word has length 8 [2021-07-01 10:04:09,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 10:04:09,568 INFO L482 AbstractCegarLoop]: Abstraction has 835 states and 2709 transitions. [2021-07-01 10:04:09,568 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 10:04:09,569 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 2709 transitions. [2021-07-01 10:04:09,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-01 10:04:09,569 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 10:04:09,569 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 10:04:09,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 10:04:09,569 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:04:09,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:04:09,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1810905981, now seen corresponding path program 1 times [2021-07-01 10:04:09,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:04:09,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778199897] [2021-07-01 10:04:09,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:04:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:04:09,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 10:04:09,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 10:04:09,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 10:04:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 10:04:09,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:04:09,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778199897] [2021-07-01 10:04:09,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778199897] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:04:09,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:04:09,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 10:04:09,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720326556] [2021-07-01 10:04:09,584 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 10:04:09,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:04:09,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 10:04:09,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 10:04:09,585 INFO L87 Difference]: Start difference. First operand 835 states and 2709 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 10:04:09,594 INFO L93 Difference]: Finished difference Result 755 states and 1971 transitions. [2021-07-01 10:04:09,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:04:09,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2021-07-01 10:04:09,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 10:04:09,596 INFO L225 Difference]: With dead ends: 755 [2021-07-01 10:04:09,596 INFO L226 Difference]: Without dead ends: 394 [2021-07-01 10:04:09,597 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 10:04:09,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-07-01 10:04:09,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 384. [2021-07-01 10:04:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 366 states have (on average 2.612021857923497) internal successors, (956), 383 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 956 transitions. [2021-07-01 10:04:09,605 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 956 transitions. Word has length 10 [2021-07-01 10:04:09,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 10:04:09,605 INFO L482 AbstractCegarLoop]: Abstraction has 384 states and 956 transitions. [2021-07-01 10:04:09,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,605 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 956 transitions. [2021-07-01 10:04:09,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-01 10:04:09,606 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 10:04:09,606 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 10:04:09,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 10:04:09,606 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:04:09,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:04:09,607 INFO L82 PathProgramCache]: Analyzing trace with hash -436910010, now seen corresponding path program 1 times [2021-07-01 10:04:09,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:04:09,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108669108] [2021-07-01 10:04:09,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:04:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:04:09,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 10:04:09,651 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:04:09,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108669108] [2021-07-01 10:04:09,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108669108] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:04:09,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:04:09,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 10:04:09,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734358614] [2021-07-01 10:04:09,652 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 10:04:09,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:04:09,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 10:04:09,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-01 10:04:09,653 INFO L87 Difference]: Start difference. First operand 384 states and 956 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 10:04:09,711 INFO L93 Difference]: Finished difference Result 580 states and 1386 transitions. [2021-07-01 10:04:09,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:04:09,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) Word has length 13 [2021-07-01 10:04:09,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 10:04:09,714 INFO L225 Difference]: With dead ends: 580 [2021-07-01 10:04:09,714 INFO L226 Difference]: Without dead ends: 427 [2021-07-01 10:04:09,714 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-01 10:04:09,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-07-01 10:04:09,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 351. [2021-07-01 10:04:09,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 333 states have (on average 2.5885885885885886) internal successors, (862), 350 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 862 transitions. [2021-07-01 10:04:09,723 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 862 transitions. Word has length 13 [2021-07-01 10:04:09,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 10:04:09,723 INFO L482 AbstractCegarLoop]: Abstraction has 351 states and 862 transitions. [2021-07-01 10:04:09,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,723 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 862 transitions. [2021-07-01 10:04:09,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-01 10:04:09,727 INFO L496 BasicCegarLoop]: Found error trace [2021-07-01 10:04:09,727 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 10:04:09,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 10:04:09,727 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:04:09,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:04:09,728 INFO L82 PathProgramCache]: Analyzing trace with hash -256895465, now seen corresponding path program 1 times [2021-07-01 10:04:09,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:04:09,729 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895803317] [2021-07-01 10:04:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:04:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:04:09,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 10:04:09,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 10:04:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 10:04:09,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:04:09,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895803317] [2021-07-01 10:04:09,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895803317] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:04:09,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:04:09,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 10:04:09,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605966407] [2021-07-01 10:04:09,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 10:04:09,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:04:09,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 10:04:09,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-07-01 10:04:09,783 INFO L87 Difference]: Start difference. First operand 351 states and 862 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-01 10:04:09,834 INFO L93 Difference]: Finished difference Result 243 states and 554 transitions. [2021-07-01 10:04:09,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:04:09,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-07-01 10:04:09,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-01 10:04:09,835 INFO L225 Difference]: With dead ends: 243 [2021-07-01 10:04:09,835 INFO L226 Difference]: Without dead ends: 0 [2021-07-01 10:04:09,835 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-07-01 10:04:09,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-01 10:04:09,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-01 10:04:09,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-01 10:04:09,836 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-07-01 10:04:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-01 10:04:09,836 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-01 10:04:09,836 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:04:09,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-01 10:04:09,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-01 10:04:09,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 10:04:09,837 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-07-01 10:04:09,837 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 10:04:09,841 INFO L202 PluginConnector]: Adding new model bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:04:09 BasicIcfg [2021-07-01 10:04:09,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 10:04:09,843 INFO L168 Benchmark]: Toolchain (without parser) took 1426.89 ms. Allocated memory is still 190.8 MB. Free memory was 170.9 MB in the beginning and 114.0 MB in the end (delta: 56.9 MB). Peak memory consumption was 57.9 MB. Max. memory is 8.0 GB. [2021-07-01 10:04:09,844 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.36 ms. Allocated memory is still 190.8 MB. Free memory is still 171.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 10:04:09,845 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.34 ms. Allocated memory is still 190.8 MB. Free memory was 170.8 MB in the beginning and 169.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 10:04:09,845 INFO L168 Benchmark]: Boogie Preprocessor took 11.83 ms. Allocated memory is still 190.8 MB. Free memory was 169.0 MB in the beginning and 168.0 MB in the end (delta: 932.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 10:04:09,845 INFO L168 Benchmark]: RCFGBuilder took 301.15 ms. Allocated memory is still 190.8 MB. Free memory was 167.9 MB in the beginning and 153.9 MB in the end (delta: 14.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-01 10:04:09,846 INFO L168 Benchmark]: TraceAbstraction took 1083.92 ms. Allocated memory is still 190.8 MB. Free memory was 153.5 MB in the beginning and 114.0 MB in the end (delta: 39.5 MB). Peak memory consumption was 40.1 MB. Max. memory is 8.0 GB. [2021-07-01 10:04:09,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.36 ms. Allocated memory is still 190.8 MB. Free memory is still 171.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.34 ms. Allocated memory is still 190.8 MB. Free memory was 170.8 MB in the beginning and 169.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.83 ms. Allocated memory is still 190.8 MB. Free memory was 169.0 MB in the beginning and 168.0 MB in the end (delta: 932.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 301.15 ms. Allocated memory is still 190.8 MB. Free memory was 167.9 MB in the beginning and 153.9 MB in the end (delta: 14.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1083.92 ms. Allocated memory is still 190.8 MB. Free memory was 153.5 MB in the beginning and 114.0 MB in the end (delta: 39.5 MB). Peak memory consumption was 40.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 269, positive: 219, positive conditional: 219, positive unconditional: 0, negative: 50, negative conditional: 50, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 245, positive: 219, positive conditional: 0, positive unconditional: 219, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 70, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 70, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 75, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 245, positive: 156, positive conditional: 0, positive unconditional: 156, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 70, unknown conditional: 0, unknown unconditional: 70] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Independence queries for same thread: 24 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3558, positive: 2917, positive conditional: 2917, positive unconditional: 0, negative: 641, negative conditional: 641, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3219, positive: 2917, positive conditional: 0, positive unconditional: 2917, negative: 302, negative conditional: 0, negative unconditional: 302, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 171, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 171, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 85, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3219, positive: 2765, positive conditional: 0, positive unconditional: 2765, negative: 283, negative conditional: 0, negative unconditional: 283, unknown: 171, unknown conditional: 0, unknown unconditional: 171] , Statistics on independence cache: Total cache size (in pairs): 171, Positive cache size: 152, Positive conditional cache size: 0, Positive unconditional cache size: 152, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Independence queries for same thread: 339 - PositiveResult [Line: 36]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 8 procedures, 45 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 194.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 6.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 185.1ms, PartialOrderReductionTime: 174.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 8 procedures, 45 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 786.0ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 8.8ms, AutomataDifference: 238.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 160.6ms, PartialOrderReductionTime: 158.8ms, HoareTripleCheckerStatistics: 105 SDtfs, 108 SDslu, 98 SDs, 0 SdLazy, 117 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=835occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 91.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 134 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.9ms SsaConstructionTime, 27.4ms SatisfiabilityAnalysisTime, 121.1ms InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...