/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-NewStatesSleepPersistentFixedOrder-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert05.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 13:32:31,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 13:32:31,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 13:32:31,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 13:32:31,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 13:32:31,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 13:32:31,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 13:32:31,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 13:32:31,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 13:32:31,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 13:32:31,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 13:32:31,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 13:32:31,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 13:32:31,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 13:32:31,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 13:32:31,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 13:32:31,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 13:32:31,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 13:32:31,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 13:32:31,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 13:32:31,951 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-NewStatesSleepPersistentFixedOrder-NoLbe-Random521.epf [2021-07-01 13:32:31,988 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 13:32:31,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 13:32:31,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 13:32:31,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 13:32:31,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 13:32:31,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 13:32:31,992 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 13:32:31,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 13:32:31,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 13:32:31,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 13:32:31,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 13:32:31,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 13:32:31,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 13:32:31,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 13:32:31,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 13:32:31,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 13:32:31,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 13:32:31,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 13:32:31,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 13:32:31,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 13:32:31,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 13:32:31,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 13:32:31,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 13:32:31,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 13:32:31,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 13:32:31,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 13:32:31,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 13:32:31,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 13:32:31,996 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-01 13:32:31,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 13:32:31,996 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 13:32:31,996 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 13:32:31,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 13:32:31,997 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-01 13:32:31,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-01 13:32:31,997 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 13:32:32,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 13:32:32,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 13:32:32,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 13:32:32,329 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 13:32:32,330 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 13:32:32,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert05.bpl [2021-07-01 13:32:32,330 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert05.bpl' [2021-07-01 13:32:32,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 13:32:32,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 13:32:32,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 13:32:32,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 13:32:32,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 13:32:32,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:32:32" (1/1) ... [2021-07-01 13:32:32,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:32:32" (1/1) ... [2021-07-01 13:32:32,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 13:32:32,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 13:32:32,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 13:32:32,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 13:32:32,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:32:32" (1/1) ... [2021-07-01 13:32:32,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:32:32" (1/1) ... [2021-07-01 13:32:32,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:32:32" (1/1) ... [2021-07-01 13:32:32,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:32:32" (1/1) ... [2021-07-01 13:32:32,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:32:32" (1/1) ... [2021-07-01 13:32:32,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:32:32" (1/1) ... [2021-07-01 13:32:32,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:32:32" (1/1) ... [2021-07-01 13:32:32,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 13:32:32,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 13:32:32,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 13:32:32,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 13:32:32,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:32:32" (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 13:32:32,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 13:32:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 13:32:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 13:32:32,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 13:32:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 13:32:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 13:32:32,456 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 13:32:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 13:32:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 13:32:32,457 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 13:32:32,656 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 13:32:32,657 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 13:32:32,657 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 13:32:32,659 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:32:32 BoogieIcfgContainer [2021-07-01 13:32:32,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 13:32:32,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 13:32:32,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 13:32:32,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 13:32:32,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:32:32" (1/2) ... [2021-07-01 13:32:32,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49964cc1 and model type bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:32:32, skipping insertion in model container [2021-07-01 13:32:32,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:32:32" (2/2) ... [2021-07-01 13:32:32,665 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert05.bpl [2021-07-01 13:32:32,686 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 13:32:32,686 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 13:32:32,687 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 13:32:32,687 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 13:32:32,765 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 13:32:32,790 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 13:32:32,867 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 13:32:32,867 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 13:32:32,867 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 13:32:32,867 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 13:32:32,867 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 13:32:32,868 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 13:32:32,868 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 13:32:32,868 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 13:32:33,258 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 13:32:33,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 13:32:33,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1517471964, now seen corresponding path program 1 times [2021-07-01 13:32:33,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 13:32:33,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300893280] [2021-07-01 13:32:33,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 13:32:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:32:33,388 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 13:32:33,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 13:32:33,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300893280] [2021-07-01 13:32:33,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300893280] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 13:32:33,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 13:32:33,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 13:32:33,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457909522] [2021-07-01 13:32:33,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 13:32:33,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 13:32:33,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 13:32:33,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 13:32:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:33,408 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 13:32:33,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 13:32:33,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:33,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:33,469 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 13:32:33,469 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 13:32:33,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 13:32:33,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1998333400, now seen corresponding path program 1 times [2021-07-01 13:32:33,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 13:32:33,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195722968] [2021-07-01 13:32:33,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 13:32:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:32:33,488 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 13:32:33,489 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 13:32:33,489 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195722968] [2021-07-01 13:32:33,489 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195722968] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 13:32:33,489 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 13:32:33,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 13:32:33,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317748438] [2021-07-01 13:32:33,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 13:32:33,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 13:32:33,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 13:32:33,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 13:32:33,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:33,492 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 13:32:33,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 13:32:33,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:33,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:32:34,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 13:32:34,151 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 13:32:34,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 13:32:34,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1573512148, now seen corresponding path program 1 times [2021-07-01 13:32:34,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 13:32:34,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482120048] [2021-07-01 13:32:34,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 13:32:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:32:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 13:32:34,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 13:32:34,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482120048] [2021-07-01 13:32:34,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482120048] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 13:32:34,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906845147] [2021-07-01 13:32:34,256 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 13:32:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:32:34,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-01 13:32:34,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 13:32:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 13:32:34,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906845147] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 13:32:34,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-01 13:32:34,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-07-01 13:32:34,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993742628] [2021-07-01 13:32:34,427 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 13:32:34,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 13:32:34,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 13:32:34,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-07-01 13:32:34,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:34,431 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 13:32:34,431 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 13:32:34,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:34,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:32:34,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:34,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:34,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:32:34,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:35,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 13:32:35,066 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 13:32:35,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 13:32:35,067 INFO L82 PathProgramCache]: Analyzing trace with hash 2047279155, now seen corresponding path program 1 times [2021-07-01 13:32:35,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 13:32:35,067 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574448866] [2021-07-01 13:32:35,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 13:32:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:32:35,159 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 13:32:35,161 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 13:32:35,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574448866] [2021-07-01 13:32:35,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574448866] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 13:32:35,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726990250] [2021-07-01 13:32:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 13:32:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:32:35,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-01 13:32:35,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 13:32:35,351 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-01 13:32:35,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726990250] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 13:32:35,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-01 13:32:35,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2021-07-01 13:32:35,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858048148] [2021-07-01 13:32:35,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 13:32:35,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 13:32:35,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 13:32:35,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-01 13:32:35,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:35,354 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 13:32:35,355 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 13:32:35,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:35,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:32:35,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:35,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:32:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:35,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 13:32:35,853 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 13:32:35,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 13:32:35,854 INFO L82 PathProgramCache]: Analyzing trace with hash -634779848, now seen corresponding path program 1 times [2021-07-01 13:32:35,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 13:32:35,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368865146] [2021-07-01 13:32:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 13:32:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:32:35,999 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-01 13:32:35,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 13:32:35,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368865146] [2021-07-01 13:32:35,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368865146] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 13:32:35,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417336063] [2021-07-01 13:32:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 13:32:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:32:36,036 WARN L261 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 30 conjunts are in the unsatisfiable core [2021-07-01 13:32:36,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 13:32:36,158 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-01 13:32:36,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417336063] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 13:32:36,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-01 13:32:36,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2021-07-01 13:32:36,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5856995] [2021-07-01 13:32:36,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 13:32:36,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 13:32:36,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 13:32:36,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-07-01 13:32:36,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:36,160 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 13:32:36,160 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 13:32:36,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:36,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:32:36,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:36,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:36,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:36,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:36,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:32:36,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:36,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:36,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 13:32:36,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 13:32:36,801 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 13:32:36,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 13:32:36,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1525413805, now seen corresponding path program 1 times [2021-07-01 13:32:36,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 13:32:36,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860304986] [2021-07-01 13:32:36,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 13:32:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:32:36,926 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-01 13:32:36,926 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 13:32:36,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860304986] [2021-07-01 13:32:36,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860304986] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 13:32:36,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407138826] [2021-07-01 13:32:36,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 13:32:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:32:36,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-01 13:32:36,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 13:32:37,124 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-01 13:32:37,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407138826] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 13:32:37,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 13:32:37,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 12 [2021-07-01 13:32:37,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656264759] [2021-07-01 13:32:37,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-01 13:32:37,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 13:32:37,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-01 13:32:37,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-01 13:32:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:37,127 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 13:32:37,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 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 13:32:37,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:37,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:32:37,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:37,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:37,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 13:32:37,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:32:42,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:42,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:32:42,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:42,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 13:32:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 13:32:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 13:32:42,587 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-01 13:32:42,599 INFO L301 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-07-01 13:32:42,600 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-07-01 13:32:42,623 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 13:32:42,623 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 13:32:42,623 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 13:32:42,623 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 13:32:42,623 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 13:32:42,623 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 13:32:42,623 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 13:32:42,624 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 13:32:45,208 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-07-01 13:32:45,209 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 13:32:45,211 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:32:45 BasicIcfg [2021-07-01 13:32:45,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 13:32:45,211 INFO L168 Benchmark]: Toolchain (without parser) took 12860.13 ms. Allocated memory was 178.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 157.9 MB in the beginning and 1.1 GB in the end (delta: -936.2 MB). Peak memory consumption was 797.1 MB. Max. memory is 8.0 GB. [2021-07-01 13:32:45,211 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 178.3 MB. Free memory is still 159.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 13:32:45,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.88 ms. Allocated memory is still 178.3 MB. Free memory was 157.8 MB in the beginning and 156.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 13:32:45,212 INFO L168 Benchmark]: Boogie Preprocessor took 12.50 ms. Allocated memory is still 178.3 MB. Free memory was 156.1 MB in the beginning and 155.2 MB in the end (delta: 843.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 13:32:45,212 INFO L168 Benchmark]: RCFGBuilder took 262.15 ms. Allocated memory is still 178.3 MB. Free memory was 155.1 MB in the beginning and 142.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-01 13:32:45,212 INFO L168 Benchmark]: TraceAbstraction took 12550.05 ms. Allocated memory was 178.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 141.7 MB in the beginning and 1.1 GB in the end (delta: -952.5 MB). Peak memory consumption was 781.3 MB. Max. memory is 8.0 GB. [2021-07-01 13:32:45,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 178.3 MB. Free memory is still 159.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 30.88 ms. Allocated memory is still 178.3 MB. Free memory was 157.8 MB in the beginning and 156.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.50 ms. Allocated memory is still 178.3 MB. Free memory was 156.1 MB in the beginning and 155.2 MB in the end (delta: 843.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 262.15 ms. Allocated memory is still 178.3 MB. Free memory was 155.1 MB in the beginning and 142.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12550.05 ms. Allocated memory was 178.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 141.7 MB in the beginning and 1.1 GB in the end (delta: -952.5 MB). Peak memory consumption was 781.3 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: 162164, positive: 150160, positive conditional: 149327, positive unconditional: 833, negative: 12004, negative conditional: 11897, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 153236, positive: 150160, positive conditional: 149327, positive unconditional: 833, negative: 3076, negative conditional: 2969, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 153236, positive: 131945, positive conditional: 0, positive unconditional: 131945, negative: 21291, negative conditional: 0, negative unconditional: 21291, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 790, positive: 716, positive conditional: 0, positive unconditional: 716, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 790, positive: 660, positive conditional: 0, positive unconditional: 660, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 130, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 153236, positive: 131229, positive conditional: 0, positive unconditional: 131229, negative: 21217, negative conditional: 0, negative unconditional: 21217, unknown: 790, unknown conditional: 0, unknown unconditional: 790] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148 ], Maximal queried relation: 6, Independence queries for same thread: 8928 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 4197, Number of persistent set computation: 42460, Number of trivial persistent sets: 41159, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 162164, positive: 150160, positive conditional: 149327, positive unconditional: 833, negative: 12004, negative conditional: 11897, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 153236, positive: 150160, positive conditional: 149327, positive unconditional: 833, negative: 3076, negative conditional: 2969, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 153236, positive: 131945, positive conditional: 0, positive unconditional: 131945, negative: 21291, negative conditional: 0, negative unconditional: 21291, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 790, positive: 716, positive conditional: 0, positive unconditional: 716, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 790, positive: 660, positive conditional: 0, positive unconditional: 660, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 130, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 153236, positive: 131229, positive conditional: 0, positive unconditional: 131229, negative: 21217, negative conditional: 0, negative unconditional: 21217, unknown: 790, unknown conditional: 0, unknown unconditional: 790] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148, SemanticConditionEliminator.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 70094, positive: 18215, positive conditional: 18215, positive unconditional: 0, negative: 51879, negative conditional: 9544, negative unconditional: 42335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 478, positive: 271, positive conditional: 215, positive unconditional: 56, negative: 207, negative conditional: 133, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 471, positive conditional: 306, positive unconditional: 164, negative: 456, negative conditional: 206, negative unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 70094, positive: 18000, positive conditional: 18000, positive unconditional: 0, negative: 51746, negative conditional: 9411, negative unconditional: 42335, unknown: 348, unknown conditional: 348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1138, Positive cache size: 931, Positive conditional cache size: 215, Positive unconditional cache size: 716, Negative cache size: 207, Negative conditional cache size: 133, Negative unconditional cache size: 74, Eliminated conditions: 42148 ], Maximal queried relation: 6, Independence queries for same thread: 8928 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 78879, positive: 52804, positive conditional: 51978, positive unconditional: 826, negative: 26075, negative conditional: 25978, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 69460, positive: 52804, positive conditional: 51978, positive unconditional: 826, negative: 16656, negative conditional: 16559, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 69460, positive: 52804, positive conditional: 0, positive unconditional: 52804, negative: 16656, negative conditional: 0, negative unconditional: 16656, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 788, positive: 699, positive conditional: 0, positive unconditional: 699, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 788, positive: 652, positive conditional: 0, positive unconditional: 652, negative: 136, negative conditional: 0, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 136, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 136, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 69, positive conditional: 0, positive unconditional: 69, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69460, positive: 52105, positive conditional: 0, positive unconditional: 52105, negative: 16567, negative conditional: 0, negative unconditional: 16567, unknown: 788, unknown conditional: 0, unknown unconditional: 788] , Statistics on independence cache: Total cache size (in pairs): 788, Positive cache size: 699, Positive conditional cache size: 0, Positive unconditional cache size: 699, Negative cache size: 89, Negative conditional cache size: 0, Negative unconditional cache size: 89 ], Maximal queried relation: 0, Independence queries for same thread: 9419 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 2208, Number of persistent set computation: 28903, Number of trivial persistent sets: 28877, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 78879, positive: 52804, positive conditional: 51978, positive unconditional: 826, negative: 26075, negative conditional: 25978, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 69460, positive: 52804, positive conditional: 51978, positive unconditional: 826, negative: 16656, negative conditional: 16559, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 69460, positive: 52804, positive conditional: 0, positive unconditional: 52804, negative: 16656, negative conditional: 0, negative unconditional: 16656, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 788, positive: 699, positive conditional: 0, positive unconditional: 699, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 788, positive: 652, positive conditional: 0, positive unconditional: 652, negative: 136, negative conditional: 0, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 136, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 136, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 69, positive conditional: 0, positive unconditional: 69, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69460, positive: 52105, positive conditional: 0, positive unconditional: 52105, negative: 16567, negative conditional: 0, negative unconditional: 16567, unknown: 788, unknown conditional: 0, unknown unconditional: 788] , Statistics on independence cache: Total cache size (in pairs): 788, Positive cache size: 699, Positive conditional cache size: 0, Positive unconditional cache size: 699, Negative cache size: 89, Negative conditional cache size: 0, Negative unconditional cache size: 89 ], Maximal queried relation: 0, Independence queries for same thread: 9419 - PositiveResult [Line: 74]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ServerThreadThread1of1ForFork0 with 1 thread instances CFG has 9 procedures, 52 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9782.2ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.4ms, PartialOrderReductionTime: 7441.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 35, 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: 27.4ms SsaConstructionTime, 107.9ms SatisfiabilityAnalysisTime, 1001.8ms InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 1039 SizeOfPredicates, 2 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 29/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 52 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2607.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 2582.8ms, 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...