/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct09.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 20:52:04,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 20:52:04,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 20:52:04,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 20:52:04,886 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.epf [2021-07-13 20:52:04,922 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 20:52:04,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 20:52:04,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 20:52:04,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 20:52:04,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 20:52:04,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 20:52:04,925 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 20:52:04,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 20:52:04,926 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 20:52:04,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 20:52:04,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 20:52:04,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 20:52:04,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 20:52:04,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 20:52:04,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 20:52:04,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 20:52:04,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 20:52:04,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 20:52:04,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 20:52:04,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 20:52:04,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 20:52:04,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 20:52:04,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 20:52:04,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 20:52:04,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 20:52:04,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 20:52:04,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 20:52:04,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 20:52:04,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 20:52:04,958 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 20:52:04,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 20:52:04,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 20:52:05,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 20:52:05,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 20:52:05,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 20:52:05,285 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-13 20:52:05,286 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-13 20:52:05,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct09.bpl [2021-07-13 20:52:05,287 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct09.bpl' [2021-07-13 20:52:05,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 20:52:05,317 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-13 20:52:05,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 20:52:05,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 20:52:05,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 20:52:05,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:52:05" (1/1) ... [2021-07-13 20:52:05,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:52:05" (1/1) ... [2021-07-13 20:52:05,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 20:52:05,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 20:52:05,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 20:52:05,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 20:52:05,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:52:05" (1/1) ... [2021-07-13 20:52:05,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:52:05" (1/1) ... [2021-07-13 20:52:05,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:52:05" (1/1) ... [2021-07-13 20:52:05,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:52:05" (1/1) ... [2021-07-13 20:52:05,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:52:05" (1/1) ... [2021-07-13 20:52:05,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:52:05" (1/1) ... [2021-07-13 20:52:05,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:52:05" (1/1) ... [2021-07-13 20:52:05,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 20:52:05,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 20:52:05,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 20:52:05,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 20:52:05,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:52:05" (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 [2021-07-13 20:52:05,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-13 20:52:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-13 20:52:05,445 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-13 20:52:05,445 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-13 20:52:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-13 20:52:05,445 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-13 20:52:05,445 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-13 20:52:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-13 20:52:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-13 20:52:05,446 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-13 20:52:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 20:52:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 20:52:05,447 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 20:52:05,671 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 20:52:05,678 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-13 20:52:05,679 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-13 20:52:05,680 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-13 20:52:05,681 INFO L202 PluginConnector]: Adding new model bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 08:52:05 BoogieIcfgContainer [2021-07-13 20:52:05,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 20:52:05,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 20:52:05,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 20:52:05,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 20:52:05,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:52:05" (1/2) ... [2021-07-13 20:52:05,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f447877 and model type bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 08:52:05, skipping insertion in model container [2021-07-13 20:52:05,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 08:52:05" (2/2) ... [2021-07-13 20:52:05,687 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct09.bpl [2021-07-13 20:52:05,692 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 20:52:05,692 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 20:52:05,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 20:52:05,704 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 20:52:05,765 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-13 20:52:05,784 INFO L255 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-07-13 20:52:05,801 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 20:52:05,801 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 20:52:05,801 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 20:52:05,801 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 20:52:05,801 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 20:52:05,801 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 20:52:05,801 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 20:52:05,802 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 20:52:05,815 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 59 transitions, 168 flow [2021-07-13 20:52:11,184 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 98411 states, 98409 states have (on average 8.667154426932496) internal successors, (852926), 98410 states have internal predecessors, (852926), 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) [2021-07-13 20:52:11,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 98411 states, 98409 states have (on average 8.667154426932496) internal successors, (852926), 98410 states have internal predecessors, (852926), 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) [2021-07-13 20:52:13,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 20:52:13,239 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-13 20:52:13,241 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-13 20:52:13,257 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 20:52:13,257 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 20:52:13,257 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 20:52:13,257 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 20:52:13,257 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 20:52:13,258 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 20:52:13,258 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 20:52:13,258 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-13 20:52:13,270 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 59 transitions, 168 flow [2021-07-13 20:52:38,599 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 393659 states, 393658 states have (on average 10.133384816261831) internal successors, (3989088), 393658 states have internal predecessors, (3989088), 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) [2021-07-13 20:52:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 393659 states, 393658 states have (on average 10.133384816261831) internal successors, (3989088), 393658 states have internal predecessors, (3989088), 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) [2021-07-13 20:52:44,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-13 20:52:44,621 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:52:44,622 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:52:44,622 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:52:44,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:52:44,626 INFO L82 PathProgramCache]: Analyzing trace with hash 932714056, now seen corresponding path program 1 times [2021-07-13 20:52:44,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:52:44,631 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908227475] [2021-07-13 20:52:44,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:52:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:52:44,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 20:52:44,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:52:44,761 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908227475] [2021-07-13 20:52:44,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908227475] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:52:44,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:52:44,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-13 20:52:44,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199307493] [2021-07-13 20:52:44,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-13 20:52:44,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:52:44,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-13 20:52:44,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 20:52:46,194 INFO L87 Difference]: Start difference. First operand has 393659 states, 393658 states have (on average 10.133384816261831) internal successors, (3989088), 393658 states have internal predecessors, (3989088), 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) [2021-07-13 20:53:04,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:53:04,455 INFO L93 Difference]: Finished difference Result 426463 states and 4277772 transitions. [2021-07-13 20:53:04,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-13 20:53:04,457 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 [2021-07-13 20:53:04,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:53:17,755 INFO L225 Difference]: With dead ends: 426463 [2021-07-13 20:53:17,755 INFO L226 Difference]: Without dead ends: 328051 [2021-07-13 20:53:17,757 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 20:54:29,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328051 states.