/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-correct05.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 20:51:35,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 20:51:35,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 20:51:35,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 20:51:36,001 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 20:51:36,047 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 20:51:36,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 20:51:36,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 20:51:36,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 20:51:36,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 20:51:36,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 20:51:36,050 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 20:51:36,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 20:51:36,050 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 20:51:36,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 20:51:36,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 20:51:36,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 20:51:36,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 20:51:36,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 20:51:36,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 20:51:36,051 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 20:51:36,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 20:51:36,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 20:51:36,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 20:51:36,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 20:51:36,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 20:51:36,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 20:51:36,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 20:51:36,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 20:51:36,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 20:51:36,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 20:51:36,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 20:51:36,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 20:51:36,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 20:51:36,053 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 20:51:36,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 20:51:36,053 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 20:51:36,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 20:51:36,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 20:51:36,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 20:51:36,335 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-13 20:51:36,336 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-13 20:51:36,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct05.bpl [2021-07-13 20:51:36,337 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct05.bpl' [2021-07-13 20:51:36,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 20:51:36,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-13 20:51:36,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 20:51:36,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 20:51:36,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 20:51:36,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:36" (1/1) ... [2021-07-13 20:51:36,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:36" (1/1) ... [2021-07-13 20:51:36,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 20:51:36,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 20:51:36,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 20:51:36,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 20:51:36,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:36" (1/1) ... [2021-07-13 20:51:36,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:36" (1/1) ... [2021-07-13 20:51:36,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:36" (1/1) ... [2021-07-13 20:51:36,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:36" (1/1) ... [2021-07-13 20:51:36,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:36" (1/1) ... [2021-07-13 20:51:36,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:36" (1/1) ... [2021-07-13 20:51:36,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:36" (1/1) ... [2021-07-13 20:51:36,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 20:51:36,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 20:51:36,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 20:51:36,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 20:51:36,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:36" (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 20:51:36,492 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-13 20:51:36,492 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-13 20:51:36,492 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-13 20:51:36,493 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-13 20:51:36,493 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-13 20:51:36,493 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-13 20:51:36,493 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-13 20:51:36,493 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-13 20:51:36,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-13 20:51:36,493 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-13 20:51:36,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 20:51:36,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 20:51:36,494 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 20:51:36,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 20:51:36,636 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-13 20:51:36,637 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-13 20:51:36,637 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-13 20:51:36,638 INFO L202 PluginConnector]: Adding new model bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 08:51:36 BoogieIcfgContainer [2021-07-13 20:51:36,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 20:51:36,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 20:51:36,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 20:51:36,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 20:51:36,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 08:51:36" (1/2) ... [2021-07-13 20:51:36,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d2cbb0 and model type bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 08:51:36, skipping insertion in model container [2021-07-13 20:51:36,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 08:51:36" (2/2) ... [2021-07-13 20:51:36,643 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct05.bpl [2021-07-13 20:51:36,647 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 20:51:36,647 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 20:51:36,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 20:51:36,648 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 20:51:36,708 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-13 20:51:36,723 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-07-13 20:51:36,736 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 20:51:36,737 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 20:51:36,737 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 20:51:36,737 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 20:51:36,737 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 20:51:36,737 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 20:51:36,737 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 20:51:36,737 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 20:51:36,744 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 39 transitions, 108 flow [2021-07-13 20:51:36,869 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1211 states, 1209 states have (on average 4.686517783291976) internal successors, (5666), 1210 states have internal predecessors, (5666), 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 20:51:36,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 1211 states, 1209 states have (on average 4.686517783291976) internal successors, (5666), 1210 states have internal predecessors, (5666), 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 20:51:36,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 20:51:36,893 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-13 20:51:36,895 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-13 20:51:36,905 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 20:51:36,905 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 20:51:36,905 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 20:51:36,905 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 20:51:36,906 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 20:51:36,906 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 20:51:36,906 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 20:51:36,906 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-13 20:51:36,910 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 39 transitions, 108 flow [2021-07-13 20:51:37,118 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4859 states, 4858 states have (on average 6.135858377933306) internal successors, (29808), 4858 states have internal predecessors, (29808), 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 20:51:37,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 4859 states, 4858 states have (on average 6.135858377933306) internal successors, (29808), 4858 states have internal predecessors, (29808), 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 20:51:37,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-13 20:51:37,150 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:37,152 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:37,152 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:37,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:37,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1198405354, now seen corresponding path program 1 times [2021-07-13 20:51:37,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:37,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885349661] [2021-07-13 20:51:37,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:37,234 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 20:51:37,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:37,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885349661] [2021-07-13 20:51:37,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885349661] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:37,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:37,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-13 20:51:37,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235862539] [2021-07-13 20:51:37,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-13 20:51:37,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:37,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-13 20:51:37,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 20:51:37,258 INFO L87 Difference]: Start difference. First operand has 4859 states, 4858 states have (on average 6.135858377933306) internal successors, (29808), 4858 states have internal predecessors, (29808), 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 20:51:37,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:37,459 INFO L93 Difference]: Finished difference Result 5263 states and 31752 transitions. [2021-07-13 20:51:37,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-13 20:51:37,460 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 20:51:37,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:37,520 INFO L225 Difference]: With dead ends: 5263 [2021-07-13 20:51:37,520 INFO L226 Difference]: Without dead ends: 4051 [2021-07-13 20:51:37,522 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 20:51:37,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4051 states. [2021-07-13 20:51:37,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4051 to 4051. [2021-07-13 20:51:37,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4051 states, 4050 states have (on average 6.000987654320988) internal successors, (24304), 4050 states have internal predecessors, (24304), 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 20:51:37,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4051 states to 4051 states and 24304 transitions. [2021-07-13 20:51:37,964 INFO L78 Accepts]: Start accepts. Automaton has 4051 states and 24304 transitions. Word has length 8 [2021-07-13 20:51:37,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:37,964 INFO L482 AbstractCegarLoop]: Abstraction has 4051 states and 24304 transitions. [2021-07-13 20:51:37,965 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) [2021-07-13 20:51:37,965 INFO L276 IsEmpty]: Start isEmpty. Operand 4051 states and 24304 transitions. [2021-07-13 20:51:37,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-13 20:51:37,967 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:37,967 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:37,967 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 20:51:37,967 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:37,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:37,973 INFO L82 PathProgramCache]: Analyzing trace with hash -414434776, now seen corresponding path program 1 times [2021-07-13 20:51:37,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:37,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042526078] [2021-07-13 20:51:37,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:38,058 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 20:51:38,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:38,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042526078] [2021-07-13 20:51:38,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042526078] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:38,060 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:38,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 20:51:38,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529900542] [2021-07-13 20:51:38,061 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 20:51:38,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:38,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 20:51:38,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-13 20:51:38,062 INFO L87 Difference]: Start difference. First operand 4051 states and 24304 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) [2021-07-13 20:51:38,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:38,262 INFO L93 Difference]: Finished difference Result 7294 states and 43935 transitions. [2021-07-13 20:51:38,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-13 20:51:38,263 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 [2021-07-13 20:51:38,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:38,360 INFO L225 Difference]: With dead ends: 7294 [2021-07-13 20:51:38,361 INFO L226 Difference]: Without dead ends: 7294 [2021-07-13 20:51:38,361 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 25.0ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-13 20:51:38,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7294 states. [2021-07-13 20:51:38,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7294 to 7174. [2021-07-13 20:51:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7174 states, 7173 states have (on average 6.052000557646731) internal successors, (43411), 7173 states have internal predecessors, (43411), 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 20:51:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7174 states to 7174 states and 43411 transitions. [2021-07-13 20:51:38,660 INFO L78 Accepts]: Start accepts. Automaton has 7174 states and 43411 transitions. Word has length 12 [2021-07-13 20:51:38,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:38,660 INFO L482 AbstractCegarLoop]: Abstraction has 7174 states and 43411 transitions. [2021-07-13 20:51:38,661 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) [2021-07-13 20:51:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 7174 states and 43411 transitions. [2021-07-13 20:51:38,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-13 20:51:38,662 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:38,663 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:38,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 20:51:38,663 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:38,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:38,663 INFO L82 PathProgramCache]: Analyzing trace with hash 44585324, now seen corresponding path program 2 times [2021-07-13 20:51:38,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:38,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727196632] [2021-07-13 20:51:38,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:38,691 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 20:51:38,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:38,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727196632] [2021-07-13 20:51:38,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727196632] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:38,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:38,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-13 20:51:38,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902958447] [2021-07-13 20:51:38,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-13 20:51:38,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:38,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-13 20:51:38,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 20:51:38,699 INFO L87 Difference]: Start difference. First operand 7174 states and 43411 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) [2021-07-13 20:51:38,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:38,805 INFO L93 Difference]: Finished difference Result 6780 states and 33459 transitions. [2021-07-13 20:51:38,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-13 20:51:38,806 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 [2021-07-13 20:51:38,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:38,820 INFO L225 Difference]: With dead ends: 6780 [2021-07-13 20:51:38,820 INFO L226 Difference]: Without dead ends: 3579 [2021-07-13 20:51:38,820 INFO L764 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 [2021-07-13 20:51:38,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3579 states. [2021-07-13 20:51:38,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3579 to 3413. [2021-07-13 20:51:38,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3412 states have (on average 4.857561547479484) internal successors, (16574), 3412 states have internal predecessors, (16574), 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 20:51:39,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 16574 transitions. [2021-07-13 20:51:39,007 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 16574 transitions. Word has length 12 [2021-07-13 20:51:39,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:39,007 INFO L482 AbstractCegarLoop]: Abstraction has 3413 states and 16574 transitions. [2021-07-13 20:51:39,007 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) [2021-07-13 20:51:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 16574 transitions. [2021-07-13 20:51:39,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-07-13 20:51:39,012 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:39,012 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:39,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 20:51:39,012 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:39,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:39,013 INFO L82 PathProgramCache]: Analyzing trace with hash -645346953, now seen corresponding path program 1 times [2021-07-13 20:51:39,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:39,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518150476] [2021-07-13 20:51:39,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:39,079 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 20:51:39,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:39,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518150476] [2021-07-13 20:51:39,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518150476] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:39,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:39,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 20:51:39,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394882434] [2021-07-13 20:51:39,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 20:51:39,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:39,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 20:51:39,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-13 20:51:39,082 INFO L87 Difference]: Start difference. First operand 3413 states and 16574 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) [2021-07-13 20:51:39,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:39,254 INFO L93 Difference]: Finished difference Result 5716 states and 28113 transitions. [2021-07-13 20:51:39,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 20:51:39,255 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 [2021-07-13 20:51:39,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:39,276 INFO L225 Difference]: With dead ends: 5716 [2021-07-13 20:51:39,276 INFO L226 Difference]: Without dead ends: 5166 [2021-07-13 20:51:39,277 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 21.0ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-13 20:51:39,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-07-13 20:51:39,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 3799. [2021-07-13 20:51:39,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3799 states, 3798 states have (on average 4.902580305423907) internal successors, (18620), 3798 states have internal predecessors, (18620), 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 20:51:39,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3799 states to 3799 states and 18620 transitions. [2021-07-13 20:51:39,446 INFO L78 Accepts]: Start accepts. Automaton has 3799 states and 18620 transitions. Word has length 15 [2021-07-13 20:51:39,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:39,447 INFO L482 AbstractCegarLoop]: Abstraction has 3799 states and 18620 transitions. [2021-07-13 20:51:39,447 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) [2021-07-13 20:51:39,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3799 states and 18620 transitions. [2021-07-13 20:51:39,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-13 20:51:39,455 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:39,455 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:39,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 20:51:39,455 INFO L430 AbstractCegarLoop]: === Iteration 5 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:39,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:39,456 INFO L82 PathProgramCache]: Analyzing trace with hash 164372072, now seen corresponding path program 1 times [2021-07-13 20:51:39,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:39,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343348310] [2021-07-13 20:51:39,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:39,524 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 20:51:39,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:39,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343348310] [2021-07-13 20:51:39,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343348310] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:39,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:39,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 20:51:39,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654822788] [2021-07-13 20:51:39,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 20:51:39,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:39,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 20:51:39,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-07-13 20:51:39,526 INFO L87 Difference]: Start difference. First operand 3799 states and 18620 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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 20:51:39,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:39,653 INFO L93 Difference]: Finished difference Result 6000 states and 29705 transitions. [2021-07-13 20:51:39,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 20:51:39,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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 18 [2021-07-13 20:51:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:39,674 INFO L225 Difference]: With dead ends: 6000 [2021-07-13 20:51:39,674 INFO L226 Difference]: Without dead ends: 4818 [2021-07-13 20:51:39,675 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 25.8ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-07-13 20:51:39,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2021-07-13 20:51:39,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 3495. [2021-07-13 20:51:39,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 3494 states have (on average 4.896107613050945) internal successors, (17107), 3494 states have internal predecessors, (17107), 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 20:51:39,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 17107 transitions. [2021-07-13 20:51:39,846 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 17107 transitions. Word has length 18 [2021-07-13 20:51:39,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:39,846 INFO L482 AbstractCegarLoop]: Abstraction has 3495 states and 17107 transitions. [2021-07-13 20:51:39,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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 20:51:39,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 17107 transitions. [2021-07-13 20:51:39,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-07-13 20:51:39,852 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:39,852 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:39,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 20:51:39,853 INFO L430 AbstractCegarLoop]: === Iteration 6 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:39,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:39,854 INFO L82 PathProgramCache]: Analyzing trace with hash 415498593, now seen corresponding path program 1 times [2021-07-13 20:51:39,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:39,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623399346] [2021-07-13 20:51:39,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:39,941 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 20:51:39,941 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:39,941 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623399346] [2021-07-13 20:51:39,942 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623399346] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:39,942 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:39,942 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 20:51:39,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501063512] [2021-07-13 20:51:39,942 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 20:51:39,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:39,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 20:51:39,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-07-13 20:51:39,946 INFO L87 Difference]: Start difference. First operand 3495 states and 17107 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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 20:51:40,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:40,069 INFO L93 Difference]: Finished difference Result 4908 states and 24286 transitions. [2021-07-13 20:51:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-13 20:51:40,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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 21 [2021-07-13 20:51:40,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:40,086 INFO L225 Difference]: With dead ends: 4908 [2021-07-13 20:51:40,086 INFO L226 Difference]: Without dead ends: 3160 [2021-07-13 20:51:40,087 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 35.0ms TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-07-13 20:51:40,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3160 states. [2021-07-13 20:51:40,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3160 to 2473. [2021-07-13 20:51:40,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2472 states have (on average 4.81836569579288) internal successors, (11911), 2472 states have internal predecessors, (11911), 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 20:51:40,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 11911 transitions. [2021-07-13 20:51:40,152 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 11911 transitions. Word has length 21 [2021-07-13 20:51:40,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:40,153 INFO L482 AbstractCegarLoop]: Abstraction has 2473 states and 11911 transitions. [2021-07-13 20:51:40,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 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 20:51:40,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 11911 transitions. [2021-07-13 20:51:40,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-07-13 20:51:40,156 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 20:51:40,157 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 20:51:40,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 20:51:40,157 INFO L430 AbstractCegarLoop]: === Iteration 7 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 20:51:40,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 20:51:40,157 INFO L82 PathProgramCache]: Analyzing trace with hash 874625220, now seen corresponding path program 1 times [2021-07-13 20:51:40,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 20:51:40,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118190764] [2021-07-13 20:51:40,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 20:51:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 20:51:40,326 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 20:51:40,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 20:51:40,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118190764] [2021-07-13 20:51:40,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118190764] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 20:51:40,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 20:51:40,327 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 20:51:40,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106279060] [2021-07-13 20:51:40,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-13 20:51:40,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 20:51:40,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-13 20:51:40,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-07-13 20:51:40,328 INFO L87 Difference]: Start difference. First operand 2473 states and 11911 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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 20:51:40,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 20:51:40,457 INFO L93 Difference]: Finished difference Result 1663 states and 8374 transitions. [2021-07-13 20:51:40,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 20:51:40,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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 24 [2021-07-13 20:51:40,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 20:51:40,458 INFO L225 Difference]: With dead ends: 1663 [2021-07-13 20:51:40,458 INFO L226 Difference]: Without dead ends: 0 [2021-07-13 20:51:40,459 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 102.3ms TimeCoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-07-13 20:51:40,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-13 20:51:40,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-13 20:51:40,459 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) [2021-07-13 20:51:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-13 20:51:40,460 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2021-07-13 20:51:40,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 20:51:40,460 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-13 20:51:40,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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 20:51:40,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-13 20:51:40,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 20:51:40,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 20:51:40,460 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-07-13 20:51:40,460 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 20:51:40,463 INFO L202 PluginConnector]: Adding new model bluetooth-correct05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 08:51:40 BasicIcfg [2021-07-13 20:51:40,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 20:51:40,465 INFO L168 Benchmark]: Toolchain (without parser) took 4099.99 ms. Allocated memory was 194.0 MB in the beginning and 3.4 GB in the end (delta: 3.2 GB). Free memory was 173.4 MB in the beginning and 3.2 GB in the end (delta: -3.0 GB). Peak memory consumption was 175.2 MB. Max. memory is 8.0 GB. [2021-07-13 20:51:40,467 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 194.0 MB. Free memory is still 174.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 20:51:40,467 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.14 ms. Allocated memory is still 194.0 MB. Free memory was 173.3 MB in the beginning and 171.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 20:51:40,467 INFO L168 Benchmark]: Boogie Preprocessor took 10.15 ms. Allocated memory is still 194.0 MB. Free memory was 171.5 MB in the beginning and 170.6 MB in the end (delta: 924.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-13 20:51:40,468 INFO L168 Benchmark]: RCFGBuilder took 207.64 ms. Allocated memory is still 194.0 MB. Free memory was 170.5 MB in the beginning and 155.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-07-13 20:51:40,468 INFO L168 Benchmark]: TraceAbstraction took 3823.56 ms. Allocated memory was 194.0 MB in the beginning and 3.4 GB in the end (delta: 3.2 GB). Free memory was 155.0 MB in the beginning and 3.2 GB in the end (delta: -3.0 GB). Peak memory consumption was 156.3 MB. Max. memory is 8.0 GB. [2021-07-13 20:51:40,470 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 0.11 ms. Allocated memory is still 194.0 MB. Free memory is still 174.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 45.14 ms. Allocated memory is still 194.0 MB. Free memory was 173.3 MB in the beginning and 171.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.15 ms. Allocated memory is still 194.0 MB. Free memory was 171.5 MB in the beginning and 170.6 MB in the end (delta: 924.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 207.64 ms. Allocated memory is still 194.0 MB. Free memory was 170.5 MB in the beginning and 155.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3823.56 ms. Allocated memory was 194.0 MB in the beginning and 3.4 GB in the end (delta: 3.2 GB). Free memory was 155.0 MB in the beginning and 3.2 GB in the end (delta: -3.0 GB). Peak memory consumption was 156.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 38]: 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 10 procedures, 55 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 157.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 23.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 131.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1211occurred 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 10 procedures, 55 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3555.5ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 57.4ms, AutomataDifference: 1325.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 212.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 287 SDtfs, 388 SDslu, 466 SDs, 0 SdLazy, 506 SolverSat, 250 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 346.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 217.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7174occurred in iteration=2, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1323.0ms AutomataMinimizationTime, 7 MinimizatonAttempts, 3663 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.9ms SsaConstructionTime, 70.6ms SatisfiabilityAnalysisTime, 434.8ms InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...