/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 04:48:46,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 04:48:46,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 04:48:46,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 04:48:46,915 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.epf [2021-07-14 04:48:46,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 04:48:46,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 04:48:46,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 04:48:46,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 04:48:46,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 04:48:46,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 04:48:46,971 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 04:48:46,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 04:48:46,971 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 04:48:46,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 04:48:46,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 04:48:46,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 04:48:46,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 04:48:46,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 04:48:46,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 04:48:46,972 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 04:48:46,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 04:48:46,973 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 04:48:46,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 04:48:46,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 04:48:46,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 04:48:46,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 04:48:46,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 04:48:46,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 04:48:46,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 04:48:46,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 04:48:46,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 04:48:46,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 04:48:46,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 04:48:46,975 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 04:48:46,975 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 04:48:46,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 04:48:46,975 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 04:48:46,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 04:48:47,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 04:48:47,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 04:48:47,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 04:48:47,317 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 04:48:47,318 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 04:48:47,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl [2021-07-14 04:48:47,319 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl' [2021-07-14 04:48:47,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 04:48:47,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 04:48:47,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 04:48:47,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 04:48:47,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 04:48:47,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:47" (1/1) ... [2021-07-14 04:48:47,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:47" (1/1) ... [2021-07-14 04:48:47,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 04:48:47,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 04:48:47,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 04:48:47,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 04:48:47,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:47" (1/1) ... [2021-07-14 04:48:47,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:47" (1/1) ... [2021-07-14 04:48:47,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:47" (1/1) ... [2021-07-14 04:48:47,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:47" (1/1) ... [2021-07-14 04:48:47,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:47" (1/1) ... [2021-07-14 04:48:47,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:47" (1/1) ... [2021-07-14 04:48:47,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:47" (1/1) ... [2021-07-14 04:48:47,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 04:48:47,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 04:48:47,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 04:48:47,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 04:48:47,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 04:48:47,479 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-14 04:48:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-14 04:48:47,479 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-14 04:48:47,480 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-14 04:48:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-14 04:48:47,480 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-14 04:48:47,480 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-14 04:48:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-14 04:48:47,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-14 04:48:47,481 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 04:48:47,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 04:48:47,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 04:48:47,483 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 04:48:47,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 04:48:47,754 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-14 04:48:47,755 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-14 04:48:47,760 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-14 04:48:47,762 INFO L202 PluginConnector]: Adding new model bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:48:47 BoogieIcfgContainer [2021-07-14 04:48:47,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 04:48:47,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 04:48:47,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 04:48:47,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 04:48:47,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:47" (1/2) ... [2021-07-14 04:48:47,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210290ff and model type bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:48:47, skipping insertion in model container [2021-07-14 04:48:47,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:48:47" (2/2) ... [2021-07-14 04:48:47,768 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct08.bpl [2021-07-14 04:48:47,773 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 04:48:47,773 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 04:48:47,773 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 04:48:47,774 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 04:48:47,852 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 04:48:47,880 INFO L255 AbstractCegarLoop]: Starting to check reachability of 9 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 [2021-07-14 04:48:47,937 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 04:48:47,937 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 04:48:47,937 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 04:48:47,937 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 04:48:47,937 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 04:48:47,938 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 04:48:47,938 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 04:48:47,938 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 04:48:54,604 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-14 04:48:54,606 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 04:48:54,617 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 04:48:54,617 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 04:48:54,617 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 04:48:54,617 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 04:48:54,617 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 04:48:54,617 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 04:48:54,617 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 04:48:54,617 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-14 04:48:54,624 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:48:54,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:48:54,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1461605507, now seen corresponding path program 1 times [2021-07-14 04:48:54,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:48:54,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050363119] [2021-07-14 04:48:54,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:48:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:48:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:48:54,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:48:54,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050363119] [2021-07-14 04:48:54,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050363119] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 04:48:54,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 04:48:54,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 04:48:54,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433949349] [2021-07-14 04:48:54,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 04:48:54,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:48:54,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 04:48:54,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 04:48:54,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:48:54,759 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:48:54,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 04:48:54,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:48:55,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:48:55,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 04:48:55,079 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:48:55,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:48:55,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1804539990, now seen corresponding path program 1 times [2021-07-14 04:48:55,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:48:55,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448945279] [2021-07-14 04:48:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:48:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:48:55,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:48:55,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:48:55,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448945279] [2021-07-14 04:48:55,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448945279] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 04:48:55,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 04:48:55,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 04:48:55,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458310175] [2021-07-14 04:48:55,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 04:48:55,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:48:55,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 04:48:55,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 04:48:55,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:48:55,112 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:48:55,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 04:48:55,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:48:55,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:48:55,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:48:55,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:48:55,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 04:48:55,274 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:48:55,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:48:55,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1415687460, now seen corresponding path program 1 times [2021-07-14 04:48:55,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:48:55,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625073411] [2021-07-14 04:48:55,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:48:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:48:55,435 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 04:48:55,435 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:48:55,435 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625073411] [2021-07-14 04:48:55,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625073411] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 04:48:55,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 04:48:55,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 04:48:55,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127690746] [2021-07-14 04:48:55,437 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 04:48:55,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:48:55,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 04:48:55,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-14 04:48:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:48:55,439 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:48:55,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 04:48:55,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:48:55,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:48:55,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:49:03,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:49:03,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:49:03,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 04:49:03,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 04:49:03,425 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-07-14 04:49:03,425 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 04:49:03,428 INFO L202 PluginConnector]: Adding new model bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 04:49:03 BasicIcfg [2021-07-14 04:49:03,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 04:49:03,429 INFO L168 Benchmark]: Toolchain (without parser) took 16079.59 ms. Allocated memory was 176.2 MB in the beginning and 4.5 GB in the end (delta: 4.4 GB). Free memory was 156.1 MB in the beginning and 3.7 GB in the end (delta: -3.5 GB). Peak memory consumption was 975.3 MB. Max. memory is 8.0 GB. [2021-07-14 04:49:03,429 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 176.2 MB. Free memory is still 157.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 04:49:03,429 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 176.2 MB. Free memory was 156.0 MB in the beginning and 154.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 04:49:03,430 INFO L168 Benchmark]: Boogie Preprocessor took 16.52 ms. Allocated memory is still 176.2 MB. Free memory was 154.3 MB in the beginning and 153.3 MB in the end (delta: 919.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 04:49:03,430 INFO L168 Benchmark]: RCFGBuilder took 358.24 ms. Allocated memory is still 176.2 MB. Free memory was 153.2 MB in the beginning and 137.9 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-07-14 04:49:03,430 INFO L168 Benchmark]: TraceAbstraction took 15664.58 ms. Allocated memory was 176.2 MB in the beginning and 4.5 GB in the end (delta: 4.4 GB). Free memory was 137.5 MB in the beginning and 3.7 GB in the end (delta: -3.5 GB). Peak memory consumption was 956.4 MB. Max. memory is 8.0 GB. [2021-07-14 04:49:03,434 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 176.2 MB. Free memory is still 157.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 176.2 MB. Free memory was 156.0 MB in the beginning and 154.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.52 ms. Allocated memory is still 176.2 MB. Free memory was 154.3 MB in the beginning and 153.3 MB in the end (delta: 919.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 358.24 ms. Allocated memory is still 176.2 MB. Free memory was 153.2 MB in the beginning and 137.9 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 15664.58 ms. Allocated memory was 176.2 MB in the beginning and 4.5 GB in the end (delta: 4.4 GB). Free memory was 137.5 MB in the beginning and 3.7 GB in the end (delta: -3.5 GB). Peak memory consumption was 956.4 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: 3858974, positive: 3127385, positive conditional: 3127385, positive unconditional: 0, negative: 731589, negative conditional: 731589, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 3590585, positive: 3127385, positive conditional: 3127385, positive unconditional: 0, negative: 463200, negative conditional: 463200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 3590585, positive: 3127385, positive conditional: 0, positive unconditional: 3127385, negative: 463200, negative conditional: 0, negative unconditional: 463200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 573, positive: 487, positive conditional: 0, positive unconditional: 487, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 573, positive: 423, positive conditional: 0, positive unconditional: 423, negative: 150, negative conditional: 0, negative unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 150, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 150, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 465, positive: 280, positive conditional: 0, positive unconditional: 280, negative: 185, negative conditional: 0, negative unconditional: 185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3590585, positive: 3126898, positive conditional: 0, positive unconditional: 3126898, negative: 463114, negative conditional: 0, negative unconditional: 463114, unknown: 573, unknown conditional: 0, unknown unconditional: 573] , Statistics on independence cache: Total cache size (in pairs): 573, Positive cache size: 487, Positive conditional cache size: 0, Positive unconditional cache size: 487, Negative cache size: 86, Negative conditional cache size: 0, Negative unconditional cache size: 86 ], Maximal queried relation: 0, Independence queries for same thread: 268389 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1278081, positive: 1237620, positive conditional: 1237620, positive unconditional: 0, negative: 40461, negative conditional: 40461, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1245755, positive: 1237620, positive conditional: 1237620, positive unconditional: 0, negative: 8135, negative conditional: 8135, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1245755, positive: 1107005, positive conditional: 0, positive unconditional: 1107005, negative: 138750, negative conditional: 0, negative unconditional: 138750, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 623, positive: 542, positive conditional: 0, positive unconditional: 542, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 623, positive: 461, positive conditional: 0, positive unconditional: 461, negative: 162, negative conditional: 0, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 162, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 338, positive: 235, positive conditional: 154, positive unconditional: 81, negative: 103, negative conditional: 22, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 641, positive: 524, positive conditional: 195, positive unconditional: 328, negative: 117, negative conditional: 18, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1245755, positive: 1106463, positive conditional: 0, positive unconditional: 1106463, negative: 138669, negative conditional: 0, negative unconditional: 138669, unknown: 623, unknown conditional: 0, unknown unconditional: 623] , Statistics on independence cache: Total cache size (in pairs): 799, Positive cache size: 696, Positive conditional cache size: 154, Positive unconditional cache size: 542, Negative cache size: 103, Negative conditional cache size: 22, Negative unconditional cache size: 81, SemanticConditionEliminator.Independence Queries: [ total: 240907, positive: 130615, positive conditional: 130615, positive unconditional: 0, negative: 110292, negative conditional: 8122, negative unconditional: 102170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 240907, positive: 130615, positive conditional: 130615, positive unconditional: 0, negative: 110292, negative conditional: 8122, negative unconditional: 102170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 338, positive: 235, positive conditional: 154, positive unconditional: 81, negative: 103, negative conditional: 22, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 641, positive: 524, positive conditional: 195, positive unconditional: 328, negative: 117, negative conditional: 18, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 240907, positive: 130461, positive conditional: 130461, positive unconditional: 0, negative: 110270, negative conditional: 8100, negative unconditional: 102170, unknown: 176, unknown conditional: 176, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 799, Positive cache size: 696, Positive conditional cache size: 154, Positive unconditional cache size: 542, Negative cache size: 103, Negative conditional cache size: 22, Negative unconditional cache size: 81, Eliminated conditions: 102170, SemanticConditionEliminator.Independence Queries: [ total: 240907, positive: 130615, positive conditional: 130615, positive unconditional: 0, negative: 110292, negative conditional: 8122, negative unconditional: 102170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 240907, positive: 130615, positive conditional: 130615, positive unconditional: 0, negative: 110292, negative conditional: 8122, negative unconditional: 102170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 338, positive: 235, positive conditional: 154, positive unconditional: 81, negative: 103, negative conditional: 22, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 641, positive: 524, positive conditional: 195, positive unconditional: 328, negative: 117, negative conditional: 18, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 240907, positive: 130461, positive conditional: 130461, positive unconditional: 0, negative: 110270, negative conditional: 8100, negative unconditional: 102170, unknown: 176, unknown conditional: 176, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 799, Positive cache size: 696, Positive conditional cache size: 154, Positive unconditional cache size: 542, Negative cache size: 103, Negative conditional cache size: 22, Negative unconditional cache size: 81, Eliminated conditions: 102170, SemanticConditionEliminator.Independence Queries: [ total: 240907, positive: 130615, positive conditional: 130615, positive unconditional: 0, negative: 110292, negative conditional: 8122, negative unconditional: 102170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 240907, positive: 130615, positive conditional: 130615, positive unconditional: 0, negative: 110292, negative conditional: 8122, negative unconditional: 102170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 338, positive: 235, positive conditional: 154, positive unconditional: 81, negative: 103, negative conditional: 22, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 641, positive: 524, positive conditional: 195, positive unconditional: 328, negative: 117, negative conditional: 18, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 240907, positive: 130461, positive conditional: 130461, positive unconditional: 0, negative: 110270, negative conditional: 8100, negative unconditional: 102170, unknown: 176, unknown conditional: 176, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 799, Positive cache size: 696, Positive conditional cache size: 154, Positive unconditional cache size: 542, Negative cache size: 103, Negative conditional cache size: 22, Negative unconditional cache size: 81, Eliminated conditions: 102170 ], Maximal queried relation: 3, Independence queries for same thread: 32326 - PositiveResult [Line: 41]: 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 13 procedures, 70 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6696.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.2ms, PartialOrderReductionTime: 6637.4ms, 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 13 procedures, 70 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8813.4ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.6ms, PartialOrderReductionTime: 8457.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 12, 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: 4.3ms SsaConstructionTime, 48.5ms SatisfiabilityAnalysisTime, 177.4ms InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 11/11 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...