/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert05.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 11:01:02,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 11:01:02,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 11:01:03,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-01 11:01:03,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-01 11:01:03,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-01 11:01:03,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-01 11:01:03,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-01 11:01:03,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-01 11:01:03,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-01 11:01:03,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-01 11:01:03,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-01 11:01:03,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 11:01:03,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 11:01:03,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 11:01:03,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 11:01:03,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 11:01:03,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 11:01:03,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 11:01:03,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 11:01:03,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 11:01:03,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 11:01:03,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 11:01:03,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 11:01:03,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 11:01:03,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 11:01:03,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 11:01:03,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 11:01:03,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Symm.epf [2021-07-01 11:01:03,093 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 11:01:03,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 11:01:03,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 11:01:03,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 11:01:03,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 11:01:03,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 11:01:03,096 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 11:01:03,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 11:01:03,096 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 11:01:03,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 11:01:03,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 11:01:03,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 11:01:03,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 11:01:03,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 11:01:03,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 11:01:03,098 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 11:01:03,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 11:01:03,098 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 11:01:03,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 11:01:03,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 11:01:03,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 11:01:03,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 11:01:03,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 11:01:03,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:01:03,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 11:01:03,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 11:01:03,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 11:01:03,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 11:01:03,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 11:01:03,099 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 11:01:03,099 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 11:01:03,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 11:01:03,099 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 11:01:03,099 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-07-01 11:01:03,099 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 11:01:03,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 11:01:03,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 11:01:03,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 11:01:03,396 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 11:01:03,397 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 11:01:03,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert05.bpl [2021-07-01 11:01:03,398 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert05.bpl' [2021-07-01 11:01:03,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 11:01:03,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 11:01:03,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 11:01:03,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 11:01:03,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 11:01:03,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:03" (1/1) ... [2021-07-01 11:01:03,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:03" (1/1) ... [2021-07-01 11:01:03,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 11:01:03,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 11:01:03,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 11:01:03,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 11:01:03,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:03" (1/1) ... [2021-07-01 11:01:03,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:03" (1/1) ... [2021-07-01 11:01:03,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:03" (1/1) ... [2021-07-01 11:01:03,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:03" (1/1) ... [2021-07-01 11:01:03,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:03" (1/1) ... [2021-07-01 11:01:03,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:03" (1/1) ... [2021-07-01 11:01:03,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:03" (1/1) ... [2021-07-01 11:01:03,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 11:01:03,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 11:01:03,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 11:01:03,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 11:01:03,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:01:03,553 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 11:01:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 11:01:03,553 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 11:01:03,553 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 11:01:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 11:01:03,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 11:01:03,554 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 11:01:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 11:01:03,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 11:01:03,555 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 11:01:03,753 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 11:01:03,753 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 11:01:03,753 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 11:01:03,755 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:01:03 BoogieIcfgContainer [2021-07-01 11:01:03,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 11:01:03,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 11:01:03,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 11:01:03,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 11:01:03,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:03" (1/2) ... [2021-07-01 11:01:03,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3f1dc5 and model type bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:01:03, skipping insertion in model container [2021-07-01 11:01:03,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:01:03" (2/2) ... [2021-07-01 11:01:03,760 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert05.bpl [2021-07-01 11:01:03,764 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 11:01:03,764 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 11:01:03,764 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 11:01:03,765 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 11:01:03,788 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 11:01:03,815 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 11:01:03,879 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:01:03,879 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:01:03,879 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:01:03,880 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:01:03,880 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:01:03,880 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:01:03,880 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:01:03,880 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 11:01:03,901 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:03,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:03,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1373907823, now seen corresponding path program 1 times [2021-07-01 11:01:03,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:03,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951796580] [2021-07-01 11:01:03,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:04,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:01:04,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:04,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951796580] [2021-07-01 11:01:04,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951796580] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:01:04,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:01:04,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 11:01:04,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765058630] [2021-07-01 11:01:04,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 11:01:04,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:04,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 11:01:04,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 11:01:04,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:04,099 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:04,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:01:04,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:04,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:04,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 11:01:04,212 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:04,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:04,215 INFO L82 PathProgramCache]: Analyzing trace with hash 514502592, now seen corresponding path program 1 times [2021-07-01 11:01:04,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:04,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90341033] [2021-07-01 11:01:04,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:04,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:01:04,256 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:04,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90341033] [2021-07-01 11:01:04,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90341033] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:01:04,256 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:01:04,257 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 11:01:04,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135095383] [2021-07-01 11:01:04,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:01:04,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:04,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:01:04,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:01:04,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:04,259 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:04,259 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2021-07-01 11:01:04,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:04,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:04,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:04,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:04,530 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 11:01:04,530 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:04,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:04,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1186184491, now seen corresponding path program 1 times [2021-07-01 11:01:04,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:04,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717186743] [2021-07-01 11:01:04,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:01:04,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:04,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717186743] [2021-07-01 11:01:04,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717186743] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:01:04,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:01:04,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-01 11:01:04,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103421197] [2021-07-01 11:01:04,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 11:01:04,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:04,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 11:01:04,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-01 11:01:04,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:04,614 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:04,614 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:01:04,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:04,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:04,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:04,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:04,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:04,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:04,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 11:01:04,693 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:04,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:04,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1185826441, now seen corresponding path program 2 times [2021-07-01 11:01:04,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:04,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364417236] [2021-07-01 11:01:04,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:04,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:01:04,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:04,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364417236] [2021-07-01 11:01:04,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364417236] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:01:04,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:01:04,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 11:01:04,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563283491] [2021-07-01 11:01:04,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 11:01:04,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:04,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 11:01:04,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-01 11:01:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:04,765 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:04,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:01:04,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:04,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:04,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:04,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:04,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:04,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:04,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:04,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:04,958 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 11:01:04,958 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:04,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:04,959 INFO L82 PathProgramCache]: Analyzing trace with hash -193258143, now seen corresponding path program 1 times [2021-07-01 11:01:04,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:04,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061140119] [2021-07-01 11:01:04,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:05,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:01:05,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:05,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061140119] [2021-07-01 11:01:05,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061140119] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:01:05,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591090015] [2021-07-01 11:01:05,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:01:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:05,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-01 11:01:05,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:01:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:01:05,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591090015] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:01:05,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:01:05,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-07-01 11:01:05,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732542155] [2021-07-01 11:01:05,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 11:01:05,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:05,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 11:01:05,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-01 11:01:05,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:05,319 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:05,319 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 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) [2021-07-01 11:01:05,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:05,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:05,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:05,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:05,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:05,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:05,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:05,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:05,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:05,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:01:05,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:01:05,829 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:05,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:05,830 INFO L82 PathProgramCache]: Analyzing trace with hash -356663934, now seen corresponding path program 1 times [2021-07-01 11:01:05,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:05,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551501531] [2021-07-01 11:01:05,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:05,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:01:05,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:05,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551501531] [2021-07-01 11:01:05,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551501531] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:01:05,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:01:05,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-01 11:01:05,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450895767] [2021-07-01 11:01:05,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 11:01:05,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:05,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 11:01:05,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-07-01 11:01:05,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:05,895 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:05,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 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) [2021-07-01 11:01:05,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:05,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:05,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:05,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:05,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:01:05,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:01:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:07,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-01 11:01:07,051 INFO L301 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-07-01 11:01:07,052 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 11:01:07,072 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:01:07,072 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:01:07,073 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:01:07,073 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:01:07,073 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:01:07,073 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:01:07,073 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:01:07,073 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 11:01:07,353 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-07-01 11:01:07,354 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 11:01:07,355 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:01:07 BasicIcfg [2021-07-01 11:01:07,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 11:01:07,356 INFO L168 Benchmark]: Toolchain (without parser) took 3938.47 ms. Allocated memory was 154.1 MB in the beginning and 349.2 MB in the end (delta: 195.0 MB). Free memory was 133.0 MB in the beginning and 178.1 MB in the end (delta: -45.1 MB). Peak memory consumption was 151.5 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:07,356 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 154.1 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 11:01:07,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.95 ms. Allocated memory is still 154.1 MB. Free memory was 132.9 MB in the beginning and 131.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:07,357 INFO L168 Benchmark]: Boogie Preprocessor took 17.56 ms. Allocated memory is still 154.1 MB. Free memory was 131.1 MB in the beginning and 130.2 MB in the end (delta: 853.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:07,357 INFO L168 Benchmark]: RCFGBuilder took 263.56 ms. Allocated memory is still 154.1 MB. Free memory was 130.1 MB in the beginning and 117.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:07,357 INFO L168 Benchmark]: TraceAbstraction took 3599.52 ms. Allocated memory was 154.1 MB in the beginning and 349.2 MB in the end (delta: 195.0 MB). Free memory was 116.7 MB in the beginning and 178.1 MB in the end (delta: -61.3 MB). Peak memory consumption was 135.8 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:07,358 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 0.13 ms. Allocated memory is still 154.1 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 46.95 ms. Allocated memory is still 154.1 MB. Free memory was 132.9 MB in the beginning and 131.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.56 ms. Allocated memory is still 154.1 MB. Free memory was 131.1 MB in the beginning and 130.2 MB in the end (delta: 853.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 263.56 ms. Allocated memory is still 154.1 MB. Free memory was 130.1 MB in the beginning and 117.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3599.52 ms. Allocated memory was 154.1 MB in the beginning and 349.2 MB in the end (delta: 195.0 MB). Free memory was 116.7 MB in the beginning and 178.1 MB in the end (delta: -61.3 MB). Peak memory consumption was 135.8 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: 78555, positive: 70596, positive conditional: 70596, positive unconditional: 0, negative: 7959, negative conditional: 7959, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 72207, positive: 70596, positive conditional: 70596, positive unconditional: 0, negative: 1611, negative conditional: 1611, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 72207, positive: 59855, positive conditional: 0, positive unconditional: 59855, negative: 12352, negative conditional: 0, negative unconditional: 12352, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 236, positive: 193, positive conditional: 0, positive unconditional: 193, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 236, positive: 168, positive conditional: 0, positive unconditional: 168, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 68, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 312, positive: 104, positive conditional: 79, positive unconditional: 25, negative: 208, negative conditional: 165, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 587, positive: 297, positive conditional: 182, positive unconditional: 115, negative: 290, negative conditional: 202, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 72207, positive: 59662, positive conditional: 0, positive unconditional: 59662, negative: 12309, negative conditional: 0, negative unconditional: 12309, unknown: 236, unknown conditional: 0, unknown unconditional: 236] , Statistics on independence cache: Total cache size (in pairs): 480, Positive cache size: 272, Positive conditional cache size: 79, Positive unconditional cache size: 193, Negative cache size: 208, Negative conditional cache size: 165, Negative unconditional cache size: 43, SemanticConditionEliminator.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 312, positive: 104, positive conditional: 79, positive unconditional: 25, negative: 208, negative conditional: 165, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 587, positive: 297, positive conditional: 182, positive unconditional: 115, negative: 290, negative conditional: 202, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 37180, positive: 10662, positive conditional: 10662, positive unconditional: 0, negative: 26274, negative conditional: 13961, negative unconditional: 12313, unknown: 244, unknown conditional: 244, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 480, Positive cache size: 272, Positive conditional cache size: 79, Positive unconditional cache size: 193, Negative cache size: 208, Negative conditional cache size: 165, Negative unconditional cache size: 43, Eliminated conditions: 12313, SemanticConditionEliminator.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 312, positive: 104, positive conditional: 79, positive unconditional: 25, negative: 208, negative conditional: 165, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 587, positive: 297, positive conditional: 182, positive unconditional: 115, negative: 290, negative conditional: 202, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 37180, positive: 10662, positive conditional: 10662, positive unconditional: 0, negative: 26274, negative conditional: 13961, negative unconditional: 12313, unknown: 244, unknown conditional: 244, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 480, Positive cache size: 272, Positive conditional cache size: 79, Positive unconditional cache size: 193, Negative cache size: 208, Negative conditional cache size: 165, Negative unconditional cache size: 43, Eliminated conditions: 12313, SemanticConditionEliminator.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 312, positive: 104, positive conditional: 79, positive unconditional: 25, negative: 208, negative conditional: 165, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 587, positive: 297, positive conditional: 182, positive unconditional: 115, negative: 290, negative conditional: 202, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 37180, positive: 10662, positive conditional: 10662, positive unconditional: 0, negative: 26274, negative conditional: 13961, negative unconditional: 12313, unknown: 244, unknown conditional: 244, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 480, Positive cache size: 272, Positive conditional cache size: 79, Positive unconditional cache size: 193, Negative cache size: 208, Negative conditional cache size: 165, Negative unconditional cache size: 43, Eliminated conditions: 12313, SemanticConditionEliminator.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 312, positive: 104, positive conditional: 79, positive unconditional: 25, negative: 208, negative conditional: 165, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 587, positive: 297, positive conditional: 182, positive unconditional: 115, negative: 290, negative conditional: 202, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 37180, positive: 10662, positive conditional: 10662, positive unconditional: 0, negative: 26274, negative conditional: 13961, negative unconditional: 12313, unknown: 244, unknown conditional: 244, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 480, Positive cache size: 272, Positive conditional cache size: 79, Positive unconditional cache size: 193, Negative cache size: 208, Negative conditional cache size: 165, Negative unconditional cache size: 43, Eliminated conditions: 12313, SemanticConditionEliminator.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 312, positive: 104, positive conditional: 79, positive unconditional: 25, negative: 208, negative conditional: 165, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 587, positive: 297, positive conditional: 182, positive unconditional: 115, negative: 290, negative conditional: 202, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 37180, positive: 10662, positive conditional: 10662, positive unconditional: 0, negative: 26274, negative conditional: 13961, negative unconditional: 12313, unknown: 244, unknown conditional: 244, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 480, Positive cache size: 272, Positive conditional cache size: 79, Positive unconditional cache size: 193, Negative cache size: 208, Negative conditional cache size: 165, Negative unconditional cache size: 43, Eliminated conditions: 12313, SemanticConditionEliminator.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37180, positive: 10741, positive conditional: 10741, positive unconditional: 0, negative: 26439, negative conditional: 14126, negative unconditional: 12313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 312, positive: 104, positive conditional: 79, positive unconditional: 25, negative: 208, negative conditional: 165, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 587, positive: 297, positive conditional: 182, positive unconditional: 115, negative: 290, negative conditional: 202, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 37180, positive: 10662, positive conditional: 10662, positive unconditional: 0, negative: 26274, negative conditional: 13961, negative unconditional: 12313, unknown: 244, unknown conditional: 244, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 480, Positive cache size: 272, Positive conditional cache size: 79, Positive unconditional cache size: 193, Negative cache size: 208, Negative conditional cache size: 165, Negative unconditional cache size: 43, Eliminated conditions: 12313 ], Maximal queried relation: 6, Independence queries for same thread: 6348 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 38243, positive: 27052, positive conditional: 27052, positive unconditional: 0, negative: 11191, negative conditional: 11191, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 33821, positive: 27052, positive conditional: 27052, positive unconditional: 0, negative: 6769, negative conditional: 6769, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 33821, positive: 27052, positive conditional: 0, positive unconditional: 27052, negative: 6769, negative conditional: 0, negative unconditional: 6769, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 184, positive: 144, positive conditional: 0, positive unconditional: 144, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 184, positive: 128, positive conditional: 0, positive unconditional: 128, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 56, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33821, positive: 26908, positive conditional: 0, positive unconditional: 26908, negative: 6729, negative conditional: 0, negative unconditional: 6729, unknown: 184, unknown conditional: 0, unknown unconditional: 184] , Statistics on independence cache: Total cache size (in pairs): 184, Positive cache size: 144, Positive conditional cache size: 0, Positive unconditional cache size: 144, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40 ], Maximal queried relation: 0, Independence queries for same thread: 4422 - PositiveResult [Line: 74]: 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: ServerThreadThread1of1ForFork0 with 1 thread instances CFG has 9 procedures, 52 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3224.4ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.6ms, PartialOrderReductionTime: 2107.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 33, 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: TRACE_CHECK: 10.9ms SsaConstructionTime, 82.7ms SatisfiabilityAnalysisTime, 526.7ms InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 712 SizeOfPredicates, 0 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 3/5 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 52 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 300.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 278.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...