/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-serverassert04.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 11:00:59,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 11:00:59,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 11:00:59,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-01 11:00:59,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-01 11:00:59,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-01 11:00:59,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-01 11:00:59,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-01 11:00:59,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-01 11:00:59,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-01 11:00:59,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-01 11:00:59,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-01 11:00:59,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 11:00:59,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 11:00:59,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 11:00:59,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 11:00:59,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 11:00:59,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 11:00:59,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 11:00:59,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 11:00:59,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 11:00:59,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 11:00:59,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 11:00:59,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 11:00:59,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 11:00:59,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 11:00:59,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 11:00:59,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 11:00:59,991 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 11:01:00,028 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 11:01:00,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 11:01:00,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 11:01:00,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 11:01:00,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 11:01:00,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 11:01:00,032 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 11:01:00,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 11:01:00,032 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 11:01:00,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 11:01:00,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 11:01:00,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 11:01:00,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 11:01:00,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 11:01:00,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 11:01:00,034 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 11:01:00,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 11:01:00,034 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 11:01:00,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 11:01:00,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 11:01:00,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 11:01:00,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 11:01:00,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 11:01:00,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:01:00,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 11:01:00,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 11:01:00,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 11:01:00,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 11:01:00,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 11:01:00,036 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 11:01:00,036 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 11:01:00,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 11:01:00,036 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 11:01:00,037 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-07-01 11:01:00,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 11:01:00,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 11:01:00,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 11:01:00,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 11:01:00,390 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 11:01:00,391 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 11:01:00,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert04.bpl [2021-07-01 11:01:00,396 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert04.bpl' [2021-07-01 11:01:00,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 11:01:00,419 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 11:01:00,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 11:01:00,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 11:01:00,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 11:01:00,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:00" (1/1) ... [2021-07-01 11:01:00,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:00" (1/1) ... [2021-07-01 11:01:00,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 11:01:00,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 11:01:00,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 11:01:00,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 11:01:00,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:00" (1/1) ... [2021-07-01 11:01:00,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:00" (1/1) ... [2021-07-01 11:01:00,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:00" (1/1) ... [2021-07-01 11:01:00,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:00" (1/1) ... [2021-07-01 11:01:00,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:00" (1/1) ... [2021-07-01 11:01:00,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:00" (1/1) ... [2021-07-01 11:01:00,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:00" (1/1) ... [2021-07-01 11:01:00,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 11:01:00,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 11:01:00,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 11:01:00,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 11:01:00,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:00" (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 11:01:00,546 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 11:01:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 11:01:00,546 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 11:01:00,546 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 11:01:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 11:01:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 11:01:00,547 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 11:01:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 11:01:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 11:01:00,548 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 11:01:00,757 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 11:01:00,757 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 11:01:00,758 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 11:01:00,759 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:01:00 BoogieIcfgContainer [2021-07-01 11:01:00,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 11:01:00,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 11:01:00,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 11:01:00,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 11:01:00,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:01:00" (1/2) ... [2021-07-01 11:01:00,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678ef647 and model type bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:01:00, skipping insertion in model container [2021-07-01 11:01:00,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:01:00" (2/2) ... [2021-07-01 11:01:00,771 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert04.bpl [2021-07-01 11:01:00,776 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 11:01:00,776 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 11:01:00,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 11:01:00,777 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 11:01:00,806 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 11:01:00,825 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 11:01:00,906 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:01:00,906 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:01:00,906 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:01:00,907 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:01:00,908 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:01:00,908 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:01:00,908 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:01:00,908 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 11:01:00,956 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:00,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:00,965 INFO L82 PathProgramCache]: Analyzing trace with hash -945797515, now seen corresponding path program 1 times [2021-07-01 11:01:00,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:00,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932401325] [2021-07-01 11:01:00,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:01,177 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 11:01:01,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:01,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932401325] [2021-07-01 11:01:01,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932401325] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:01:01,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:01:01,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 11:01:01,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759562639] [2021-07-01 11:01:01,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 11:01:01,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:01,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 11:01:01,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 11:01:01,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:01,210 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:01,213 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 11:01:01,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:01,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:01,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 11:01:01,330 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:01,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:01,330 INFO L82 PathProgramCache]: Analyzing trace with hash 2124071899, now seen corresponding path program 1 times [2021-07-01 11:01:01,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:01,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50986817] [2021-07-01 11:01:01,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:01,350 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 11:01:01,351 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:01,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50986817] [2021-07-01 11:01:01,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50986817] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:01:01,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:01:01,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 11:01:01,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58044561] [2021-07-01 11:01:01,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:01:01,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:01,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:01:01,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:01:01,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:01,354 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:01,354 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 11:01:01,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:01,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:01,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:01,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:01,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 11:01:01,586 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:01,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:01,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1272686315, now seen corresponding path program 1 times [2021-07-01 11:01:01,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:01,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405965440] [2021-07-01 11:01:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:01,690 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 11:01:01,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:01,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405965440] [2021-07-01 11:01:01,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405965440] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:01:01,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:01:01,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-01 11:01:01,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743276922] [2021-07-01 11:01:01,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 11:01:01,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:01,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 11:01:01,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-01 11:01:01,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:01,692 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:01,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 11:01:01,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:01,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:01,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:01,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:01,807 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 11:01:01,807 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:01,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:01,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1272328265, now seen corresponding path program 2 times [2021-07-01 11:01:01,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:01,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393097709] [2021-07-01 11:01:01,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:01,900 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 11:01:01,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:01,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393097709] [2021-07-01 11:01:01,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393097709] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:01:01,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:01:01,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 11:01:01,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820250652] [2021-07-01 11:01:01,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 11:01:01,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:01,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 11:01:01,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-01 11:01:01,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:01,907 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:01,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 11:01:01,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:01,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:01,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:01,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:02,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 11:01:02,134 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:02,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:02,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1285466111, now seen corresponding path program 1 times [2021-07-01 11:01:02,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:02,135 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85387504] [2021-07-01 11:01:02,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:02,201 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:01:02,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:02,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85387504] [2021-07-01 11:01:02,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85387504] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:01:02,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743112804] [2021-07-01 11:01:02,202 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 11:01:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:02,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-01 11:01:02,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:01:02,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:01:02,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743112804] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:01:02,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:01:02,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-07-01 11:01:02,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229991845] [2021-07-01 11:01:02,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 11:01:02,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:02,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 11:01:02,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-01 11:01:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:02,401 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:02,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 11:01:02,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:02,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:02,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:02,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:02,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:02,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:02,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:02,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:02,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:02,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:01:02,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:01:02,965 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:02,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:02,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1435539043, now seen corresponding path program 1 times [2021-07-01 11:01:02,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:02,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825732460] [2021-07-01 11:01:02,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:01:03,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 11:01:03,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:01:03,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825732460] [2021-07-01 11:01:03,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825732460] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:01:03,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:01:03,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-01 11:01:03,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966541475] [2021-07-01 11:01:03,054 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 11:01:03,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:01:03,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 11:01:03,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-07-01 11:01:03,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:03,055 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:01:03,056 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 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 11:01:03,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:03,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:03,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:03,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:03,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:01:03,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:01:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:01:03,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:01:03,713 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-01 11:01:03,720 INFO L301 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-07-01 11:01:03,722 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 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 11:01:03,736 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:01:03,737 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:01:03,737 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:01:03,737 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:01:03,737 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:01:03,737 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:01:03,737 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:01:03,737 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 11:01:03,898 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-07-01 11:01:03,898 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 11:01:03,902 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:01:03 BasicIcfg [2021-07-01 11:01:03,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 11:01:03,904 INFO L168 Benchmark]: Toolchain (without parser) took 3484.69 ms. Allocated memory was 192.9 MB in the beginning and 272.6 MB in the end (delta: 79.7 MB). Free memory was 172.3 MB in the beginning and 203.0 MB in the end (delta: -30.7 MB). Peak memory consumption was 50.5 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:03,905 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 192.9 MB. Free memory is still 173.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 11:01:03,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.21 ms. Allocated memory is still 192.9 MB. Free memory was 172.2 MB in the beginning and 170.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:03,907 INFO L168 Benchmark]: Boogie Preprocessor took 18.58 ms. Allocated memory is still 192.9 MB. Free memory was 170.4 MB in the beginning and 169.6 MB in the end (delta: 841.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:03,910 INFO L168 Benchmark]: RCFGBuilder took 285.43 ms. Allocated memory is still 192.9 MB. Free memory was 169.4 MB in the beginning and 156.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:03,910 INFO L168 Benchmark]: TraceAbstraction took 3141.49 ms. Allocated memory was 192.9 MB in the beginning and 272.6 MB in the end (delta: 79.7 MB). Free memory was 156.0 MB in the beginning and 203.0 MB in the end (delta: -47.0 MB). Peak memory consumption was 34.8 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:03,911 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 0.17 ms. Allocated memory is still 192.9 MB. Free memory is still 173.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 34.21 ms. Allocated memory is still 192.9 MB. Free memory was 172.2 MB in the beginning and 170.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.58 ms. Allocated memory is still 192.9 MB. Free memory was 170.4 MB in the beginning and 169.6 MB in the end (delta: 841.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 285.43 ms. Allocated memory is still 192.9 MB. Free memory was 169.4 MB in the beginning and 156.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3141.49 ms. Allocated memory was 192.9 MB in the beginning and 272.6 MB in the end (delta: 79.7 MB). Free memory was 156.0 MB in the beginning and 203.0 MB in the end (delta: -47.0 MB). Peak memory consumption was 34.8 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: 25096, positive: 22049, positive conditional: 22049, positive unconditional: 0, negative: 3047, negative conditional: 3047, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 22644, positive: 22049, positive conditional: 22049, positive unconditional: 0, negative: 595, negative conditional: 595, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 22644, positive: 18975, positive conditional: 0, positive unconditional: 18975, negative: 3669, negative conditional: 0, negative unconditional: 3669, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 167, positive: 136, positive conditional: 0, positive unconditional: 136, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 167, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 47, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 219, positive: 67, positive conditional: 51, positive unconditional: 16, negative: 152, negative conditional: 121, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 616, positive: 266, positive conditional: 152, positive unconditional: 115, negative: 349, negative conditional: 262, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22644, positive: 18839, positive conditional: 0, positive unconditional: 18839, negative: 3638, negative conditional: 0, negative unconditional: 3638, unknown: 167, unknown conditional: 0, unknown unconditional: 167] , Statistics on independence cache: Total cache size (in pairs): 339, Positive cache size: 187, Positive conditional cache size: 51, Positive unconditional cache size: 136, Negative cache size: 152, Negative conditional cache size: 121, Negative unconditional cache size: 31, SemanticConditionEliminator.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 219, positive: 67, positive conditional: 51, positive unconditional: 16, negative: 152, negative conditional: 121, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 616, positive: 266, positive conditional: 152, positive unconditional: 115, negative: 349, negative conditional: 262, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11101, positive: 3023, positive conditional: 3023, positive unconditional: 0, negative: 7906, negative conditional: 4284, negative unconditional: 3622, unknown: 172, unknown conditional: 172, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 339, Positive cache size: 187, Positive conditional cache size: 51, Positive unconditional cache size: 136, Negative cache size: 152, Negative conditional cache size: 121, Negative unconditional cache size: 31, Eliminated conditions: 3622, SemanticConditionEliminator.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 219, positive: 67, positive conditional: 51, positive unconditional: 16, negative: 152, negative conditional: 121, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 616, positive: 266, positive conditional: 152, positive unconditional: 115, negative: 349, negative conditional: 262, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11101, positive: 3023, positive conditional: 3023, positive unconditional: 0, negative: 7906, negative conditional: 4284, negative unconditional: 3622, unknown: 172, unknown conditional: 172, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 339, Positive cache size: 187, Positive conditional cache size: 51, Positive unconditional cache size: 136, Negative cache size: 152, Negative conditional cache size: 121, Negative unconditional cache size: 31, Eliminated conditions: 3622, SemanticConditionEliminator.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 219, positive: 67, positive conditional: 51, positive unconditional: 16, negative: 152, negative conditional: 121, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 616, positive: 266, positive conditional: 152, positive unconditional: 115, negative: 349, negative conditional: 262, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11101, positive: 3023, positive conditional: 3023, positive unconditional: 0, negative: 7906, negative conditional: 4284, negative unconditional: 3622, unknown: 172, unknown conditional: 172, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 339, Positive cache size: 187, Positive conditional cache size: 51, Positive unconditional cache size: 136, Negative cache size: 152, Negative conditional cache size: 121, Negative unconditional cache size: 31, Eliminated conditions: 3622, SemanticConditionEliminator.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 219, positive: 67, positive conditional: 51, positive unconditional: 16, negative: 152, negative conditional: 121, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 616, positive: 266, positive conditional: 152, positive unconditional: 115, negative: 349, negative conditional: 262, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11101, positive: 3023, positive conditional: 3023, positive unconditional: 0, negative: 7906, negative conditional: 4284, negative unconditional: 3622, unknown: 172, unknown conditional: 172, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 339, Positive cache size: 187, Positive conditional cache size: 51, Positive unconditional cache size: 136, Negative cache size: 152, Negative conditional cache size: 121, Negative unconditional cache size: 31, Eliminated conditions: 3622, SemanticConditionEliminator.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 219, positive: 67, positive conditional: 51, positive unconditional: 16, negative: 152, negative conditional: 121, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 616, positive: 266, positive conditional: 152, positive unconditional: 115, negative: 349, negative conditional: 262, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11101, positive: 3023, positive conditional: 3023, positive unconditional: 0, negative: 7906, negative conditional: 4284, negative unconditional: 3622, unknown: 172, unknown conditional: 172, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 339, Positive cache size: 187, Positive conditional cache size: 51, Positive unconditional cache size: 136, Negative cache size: 152, Negative conditional cache size: 121, Negative unconditional cache size: 31, Eliminated conditions: 3622, SemanticConditionEliminator.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11101, positive: 3074, positive conditional: 3074, positive unconditional: 0, negative: 8027, negative conditional: 4405, negative unconditional: 3622, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 219, positive: 67, positive conditional: 51, positive unconditional: 16, negative: 152, negative conditional: 121, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 616, positive: 266, positive conditional: 152, positive unconditional: 115, negative: 349, negative conditional: 262, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11101, positive: 3023, positive conditional: 3023, positive unconditional: 0, negative: 7906, negative conditional: 4284, negative unconditional: 3622, unknown: 172, unknown conditional: 172, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 339, Positive cache size: 187, Positive conditional cache size: 51, Positive unconditional cache size: 136, Negative cache size: 152, Negative conditional cache size: 121, Negative unconditional cache size: 31, Eliminated conditions: 3622 ], Maximal queried relation: 6, Independence queries for same thread: 2452 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5378, positive: 3658, positive conditional: 3658, positive unconditional: 0, negative: 1720, negative conditional: 1720, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 4621, positive: 3658, positive conditional: 3658, positive unconditional: 0, negative: 963, negative conditional: 963, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 4621, positive: 3658, positive conditional: 0, positive unconditional: 3658, negative: 963, negative conditional: 0, negative unconditional: 963, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 120, positive: 93, positive conditional: 0, positive unconditional: 93, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 120, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 36, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4621, positive: 3565, positive conditional: 0, positive unconditional: 3565, negative: 936, negative conditional: 0, negative unconditional: 936, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 93, Positive conditional cache size: 0, Positive unconditional cache size: 93, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 ], Maximal queried relation: 0, Independence queries for same thread: 757 - PositiveResult [Line: 73]: 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 8 procedures, 47 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2863.8ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.8ms, PartialOrderReductionTime: 1723.2ms, 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: 16.7ms SsaConstructionTime, 69.3ms SatisfiabilityAnalysisTime, 571.1ms InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 661 SizeOfPredicates, 0 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 5/9 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 8 procedures, 47 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 175.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.8ms, PartialOrderReductionTime: 159.1ms, 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...