/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-correct02.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 02:10:47,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 02:10:47,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 02:10:47,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 02:10:47,179 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 [2021-07-14 02:10:47,203 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 02:10:47,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 02:10:47,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 02:10:47,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 02:10:47,206 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 02:10:47,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 02:10:47,206 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 02:10:47,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 02:10:47,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 02:10:47,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 02:10:47,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 02:10:47,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 02:10:47,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 02:10:47,207 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 02:10:47,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 02:10:47,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 02:10:47,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 02:10:47,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 02:10:47,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 02:10:47,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 02:10:47,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 02:10:47,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 02:10:47,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 02:10:47,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 02:10:47,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 02:10:47,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 02:10:47,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 02:10:47,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 02:10:47,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 02:10:47,209 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 02:10:47,209 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 02:10:47,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 02:10:47,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 02:10:47,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 02:10:47,455 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 02:10:47,457 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 02:10:47,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct02.bpl [2021-07-14 02:10:47,474 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct02.bpl' [2021-07-14 02:10:47,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 02:10:47,490 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 02:10:47,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 02:10:47,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 02:10:47,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 02:10:47,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:47" (1/1) ... [2021-07-14 02:10:47,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:47" (1/1) ... [2021-07-14 02:10:47,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 02:10:47,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 02:10:47,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 02:10:47,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 02:10:47,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:47" (1/1) ... [2021-07-14 02:10:47,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:47" (1/1) ... [2021-07-14 02:10:47,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:47" (1/1) ... [2021-07-14 02:10:47,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:47" (1/1) ... [2021-07-14 02:10:47,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:47" (1/1) ... [2021-07-14 02:10:47,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:47" (1/1) ... [2021-07-14 02:10:47,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:47" (1/1) ... [2021-07-14 02:10:47,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 02:10:47,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 02:10:47,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 02:10:47,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 02:10:47,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:47" (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 [2021-07-14 02:10:47,593 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-14 02:10:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-14 02:10:47,593 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-14 02:10:47,594 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-14 02:10:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-14 02:10:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-14 02:10:47,594 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-14 02:10:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-14 02:10:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-14 02:10:47,594 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 02:10:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 02:10:47,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 02:10:47,595 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 02:10:47,867 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 02:10:47,867 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-14 02:10:47,868 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-14 02:10:47,868 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-14 02:10:47,869 INFO L202 PluginConnector]: Adding new model bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:10:47 BoogieIcfgContainer [2021-07-14 02:10:47,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 02:10:47,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 02:10:47,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 02:10:47,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 02:10:47,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 02:10:47" (1/2) ... [2021-07-14 02:10:47,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dbe3b7 and model type bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:10:47, skipping insertion in model container [2021-07-14 02:10:47,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:10:47" (2/2) ... [2021-07-14 02:10:47,874 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct02.bpl [2021-07-14 02:10:47,878 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 02:10:47,878 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 02:10:47,878 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 02:10:47,879 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 02:10:47,922 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 02:10:47,939 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-14 02:10:47,960 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 02:10:47,961 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 02:10:47,961 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 02:10:47,961 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 02:10:47,961 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 02:10:47,961 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 02:10:47,961 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 02:10:47,961 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 02:10:48,082 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 40 states have internal predecessors, (47), 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) [2021-07-14 02:10:48,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 02:10:48,095 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-14 02:10:48,096 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-14 02:10:48,097 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 02:10:48,097 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 02:10:48,097 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 02:10:48,097 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 02:10:48,097 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 02:10:48,097 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 02:10:48,097 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 02:10:48,098 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-14 02:10:48,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 163 states have (on average 2.8466257668711656) internal successors, (464), 178 states have internal predecessors, (464), 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) [2021-07-14 02:10:48,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-14 02:10:48,195 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:10:48,196 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:10:48,196 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:10:48,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:10:48,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1448005722, now seen corresponding path program 1 times [2021-07-14 02:10:48,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:10:48,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674068713] [2021-07-14 02:10:48,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:10:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:10:48,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:48,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:10:48,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:10:48,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:10:48,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674068713] [2021-07-14 02:10:48,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674068713] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:10:48,288 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:10:48,288 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 02:10:48,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844183412] [2021-07-14 02:10:48,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 02:10:48,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:10:48,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 02:10:48,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:10:48,299 INFO L87 Difference]: Start difference. First operand has 179 states, 163 states have (on average 2.8466257668711656) internal successors, (464), 178 states have internal predecessors, (464), 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 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:48,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:10:48,329 INFO L93 Difference]: Finished difference Result 193 states and 483 transitions. [2021-07-14 02:10:48,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 02:10:48,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-07-14 02:10:48,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:10:48,343 INFO L225 Difference]: With dead ends: 193 [2021-07-14 02:10:48,343 INFO L226 Difference]: Without dead ends: 133 [2021-07-14 02:10:48,344 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:10:48,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-07-14 02:10:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-07-14 02:10:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 131 states have (on average 2.6259541984732824) internal successors, (344), 132 states have internal predecessors, (344), 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) [2021-07-14 02:10:48,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 344 transitions. [2021-07-14 02:10:48,371 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 344 transitions. Word has length 8 [2021-07-14 02:10:48,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:10:48,371 INFO L482 AbstractCegarLoop]: Abstraction has 133 states and 344 transitions. [2021-07-14 02:10:48,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 02:10:48,372 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 344 transitions. [2021-07-14 02:10:48,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-14 02:10:48,373 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:10:48,373 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:10:48,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 02:10:48,373 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:10:48,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:10:48,373 INFO L82 PathProgramCache]: Analyzing trace with hash -136528808, now seen corresponding path program 1 times [2021-07-14 02:10:48,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:10:48,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399225324] [2021-07-14 02:10:48,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:10:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:10:48,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:10:48,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:48,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:48,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:10:48,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:10:48,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:10:48,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399225324] [2021-07-14 02:10:48,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399225324] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:10:48,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:10:48,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-14 02:10:48,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994876966] [2021-07-14 02:10:48,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 02:10:48,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:10:48,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 02:10:48,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-14 02:10:48,434 INFO L87 Difference]: Start difference. First operand 133 states and 344 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 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) [2021-07-14 02:10:48,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:10:48,525 INFO L93 Difference]: Finished difference Result 201 states and 523 transitions. [2021-07-14 02:10:48,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 02:10:48,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 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) Word has length 12 [2021-07-14 02:10:48,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:10:48,528 INFO L225 Difference]: With dead ends: 201 [2021-07-14 02:10:48,528 INFO L226 Difference]: Without dead ends: 201 [2021-07-14 02:10:48,528 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 16.5ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-14 02:10:48,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-07-14 02:10:48,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 191. [2021-07-14 02:10:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 189 states have (on average 2.7142857142857144) internal successors, (513), 190 states have internal predecessors, (513), 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) [2021-07-14 02:10:48,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 513 transitions. [2021-07-14 02:10:48,542 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 513 transitions. Word has length 12 [2021-07-14 02:10:48,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:10:48,542 INFO L482 AbstractCegarLoop]: Abstraction has 191 states and 513 transitions. [2021-07-14 02:10:48,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 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) [2021-07-14 02:10:48,543 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 513 transitions. [2021-07-14 02:10:48,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-14 02:10:48,553 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:10:48,553 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:10:48,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 02:10:48,553 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:10:48,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:10:48,554 INFO L82 PathProgramCache]: Analyzing trace with hash 64829212, now seen corresponding path program 2 times [2021-07-14 02:10:48,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:10:48,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490932375] [2021-07-14 02:10:48,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:10:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:10:48,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:48,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:48,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:48,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:10:48,569 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:10:48,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490932375] [2021-07-14 02:10:48,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490932375] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:10:48,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:10:48,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 02:10:48,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489686263] [2021-07-14 02:10:48,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 02:10:48,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:10:48,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 02:10:48,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:10:48,571 INFO L87 Difference]: Start difference. First operand 191 states and 513 transitions. Second operand 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) [2021-07-14 02:10:48,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:10:48,590 INFO L93 Difference]: Finished difference Result 177 states and 397 transitions. [2021-07-14 02:10:48,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 02:10:48,591 INFO L78 Accepts]: Start accepts. 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) Word has length 12 [2021-07-14 02:10:48,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:10:48,591 INFO L225 Difference]: With dead ends: 177 [2021-07-14 02:10:48,591 INFO L226 Difference]: Without dead ends: 87 [2021-07-14 02:10:48,592 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 02:10:48,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-07-14 02:10:48,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2021-07-14 02:10:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 83 states have (on average 1.963855421686747) internal successors, (163), 84 states have internal predecessors, (163), 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) [2021-07-14 02:10:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 163 transitions. [2021-07-14 02:10:48,595 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 163 transitions. Word has length 12 [2021-07-14 02:10:48,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:10:48,595 INFO L482 AbstractCegarLoop]: Abstraction has 85 states and 163 transitions. [2021-07-14 02:10:48,596 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) [2021-07-14 02:10:48,596 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 163 transitions. [2021-07-14 02:10:48,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-07-14 02:10:48,596 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 02:10:48,596 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 02:10:48,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 02:10:48,596 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 02:10:48,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 02:10:48,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1796647468, now seen corresponding path program 1 times [2021-07-14 02:10:48,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 02:10:48,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456552945] [2021-07-14 02:10:48,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 02:10:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 02:10:48,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 02:10:48,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:48,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:48,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:48,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-14 02:10:48,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 02:10:48,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 02:10:48,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 02:10:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 02:10:48,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 02:10:48,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456552945] [2021-07-14 02:10:48,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456552945] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 02:10:48,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 02:10:48,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 02:10:48,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234022874] [2021-07-14 02:10:48,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 02:10:48,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 02:10:48,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 02:10:48,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-14 02:10:48,660 INFO L87 Difference]: Start difference. First operand 85 states and 163 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-07-14 02:10:48,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 02:10:48,684 INFO L93 Difference]: Finished difference Result 57 states and 111 transitions. [2021-07-14 02:10:48,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 02:10:48,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2021-07-14 02:10:48,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 02:10:48,701 INFO L225 Difference]: With dead ends: 57 [2021-07-14 02:10:48,701 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 02:10:48,701 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 22.1ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-14 02:10:48,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 02:10:48,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 02:10:48,701 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) [2021-07-14 02:10:48,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 02:10:48,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-07-14 02:10:48,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 02:10:48,702 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 02:10:48,702 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-07-14 02:10:48,702 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 02:10:48,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 02:10:48,702 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 02:10:48,702 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-07-14 02:10:48,702 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 02:10:48,704 INFO L202 PluginConnector]: Adding new model bluetooth-correct02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:10:48 BasicIcfg [2021-07-14 02:10:48,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 02:10:48,704 INFO L168 Benchmark]: Toolchain (without parser) took 1213.86 ms. Allocated memory is still 215.0 MB. Free memory was 195.0 MB in the beginning and 170.0 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.5 MB. Max. memory is 8.0 GB. [2021-07-14 02:10:48,705 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.36 ms. Allocated memory is still 215.0 MB. Free memory is still 196.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 02:10:48,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.79 ms. Allocated memory is still 215.0 MB. Free memory was 194.8 MB in the beginning and 193.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 02:10:48,705 INFO L168 Benchmark]: Boogie Preprocessor took 10.00 ms. Allocated memory is still 215.0 MB. Free memory was 193.1 MB in the beginning and 192.1 MB in the end (delta: 940.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 02:10:48,706 INFO L168 Benchmark]: RCFGBuilder took 343.19 ms. Allocated memory is still 215.0 MB. Free memory was 192.0 MB in the beginning and 177.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-07-14 02:10:48,706 INFO L168 Benchmark]: TraceAbstraction took 833.44 ms. Allocated memory is still 215.0 MB. Free memory was 176.9 MB in the beginning and 170.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. [2021-07-14 02:10:48,708 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 215.0 MB. Free memory is still 196.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.79 ms. Allocated memory is still 215.0 MB. Free memory was 194.8 MB in the beginning and 193.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.00 ms. Allocated memory is still 215.0 MB. Free memory was 193.1 MB in the beginning and 192.1 MB in the end (delta: 940.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 343.19 ms. Allocated memory is still 215.0 MB. Free memory was 192.0 MB in the beginning and 177.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 833.44 ms. Allocated memory is still 215.0 MB. Free memory was 176.9 MB in the beginning and 170.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.6 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: 35, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 30, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 30, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 30, unknown conditional: 0, unknown unconditional: 30] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 5 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 712, positive: 572, positive conditional: 572, positive unconditional: 0, negative: 140, negative conditional: 140, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 630, positive: 572, positive conditional: 0, positive unconditional: 572, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 100, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 100, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 630, positive: 484, positive conditional: 0, positive unconditional: 484, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 100, unknown conditional: 0, unknown unconditional: 100] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Independence queries for same thread: 82 - PositiveResult [Line: 35]: 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 7 procedures, 40 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 136.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 14.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 118.0ms, PartialOrderReductionTime: 106.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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 7 procedures, 40 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 604.9ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 13.0ms, AutomataDifference: 212.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 96.1ms, PartialOrderReductionTime: 95.3ms, HoareTripleCheckerStatistics: 80 SDtfs, 65 SDslu, 77 SDs, 0 SdLazy, 56 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 86.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 49.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=2, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 36.4ms AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.9ms SsaConstructionTime, 19.3ms SatisfiabilityAnalysisTime, 141.5ms InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 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...