/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-DelaySleep-NoLbe.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 10:18:35,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 10:18:35,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 10:18:35,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 10:18:35,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 10:18:35,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 10:18:35,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 10:18:35,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 10:18:35,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 10:18:35,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 10:18:35,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 10:18:35,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 10:18:35,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 10:18:35,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 10:18:35,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 10:18:35,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 10:18:35,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 10:18:35,251 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-DelaySleep-NoLbe.epf [2021-07-01 10:18:35,286 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 10:18:35,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 10:18:35,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 10:18:35,287 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 10:18:35,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 10:18:35,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 10:18:35,290 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 10:18:35,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 10:18:35,291 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 10:18:35,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 10:18:35,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 10:18:35,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 10:18:35,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 10:18:35,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 10:18:35,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 10:18:35,292 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 10:18:35,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 10:18:35,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 10:18:35,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 10:18:35,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 10:18:35,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 10:18:35,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 10:18:35,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 10:18:35,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 10:18:35,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 10:18:35,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 10:18:35,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 10:18:35,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 10:18:35,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 10:18:35,305 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 10:18:35,305 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 10:18:35,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 10:18:35,305 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-01 10:18:35,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 10:18:35,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 10:18:35,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 10:18:35,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 10:18:35,642 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 10:18:35,643 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 10:18:35,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert05.bpl [2021-07-01 10:18:35,644 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert05.bpl' [2021-07-01 10:18:35,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 10:18:35,667 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 10:18:35,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 10:18:35,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 10:18:35,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 10:18:35,678 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 10:18:35" (1/1) ... [2021-07-01 10:18:35,686 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 10:18:35" (1/1) ... [2021-07-01 10:18:35,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 10:18:35,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 10:18:35,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 10:18:35,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 10:18:35,706 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 10:18:35" (1/1) ... [2021-07-01 10:18:35,706 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 10:18:35" (1/1) ... [2021-07-01 10:18:35,707 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 10:18:35" (1/1) ... [2021-07-01 10:18:35,707 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 10:18:35" (1/1) ... [2021-07-01 10:18:35,708 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 10:18:35" (1/1) ... [2021-07-01 10:18:35,710 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 10:18:35" (1/1) ... [2021-07-01 10:18:35,711 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 10:18:35" (1/1) ... [2021-07-01 10:18:35,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 10:18:35,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 10:18:35,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 10:18:35,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 10:18:35,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:35" (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 10:18:35,770 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 10:18:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 10:18:35,771 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 10:18:35,771 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 10:18:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 10:18:35,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 10:18:35,771 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 10:18:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 10:18:35,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 10:18:35,772 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 10:18:36,020 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 10:18:36,020 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 10:18:36,021 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 10:18:36,022 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:18:36 BoogieIcfgContainer [2021-07-01 10:18:36,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 10:18:36,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 10:18:36,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 10:18:36,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 10:18:36,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:35" (1/2) ... [2021-07-01 10:18:36,027 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 10:18:36, skipping insertion in model container [2021-07-01 10:18:36,028 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 10:18:36" (2/2) ... [2021-07-01 10:18:36,029 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert05.bpl [2021-07-01 10:18:36,050 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 10:18:36,050 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 10:18:36,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 10:18:36,051 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 10:18:36,120 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 10:18:36,142 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 10:18:36,213 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:18:36,213 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:18:36,214 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:18:36,214 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:18:36,214 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:18:36,214 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:18:36,215 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:18:36,215 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 10:18:36,264 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:18:36,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:18:36,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1373907823, now seen corresponding path program 1 times [2021-07-01 10:18:36,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:18:36,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239360668] [2021-07-01 10:18:36,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:18:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:18:36,473 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 10:18:36,473 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:18:36,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239360668] [2021-07-01 10:18:36,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239360668] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:18:36,474 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:18:36,474 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 10:18:36,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153897341] [2021-07-01 10:18:36,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 10:18:36,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:18:36,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 10:18:36,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 10:18:36,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:36,498 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:18:36,510 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 10:18:36,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:36,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:36,602 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 10:18:36,602 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:18:36,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:18:36,603 INFO L82 PathProgramCache]: Analyzing trace with hash 514502592, now seen corresponding path program 1 times [2021-07-01 10:18:36,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:18:36,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584621667] [2021-07-01 10:18:36,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:18:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:18:36,625 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 10:18:36,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:18:36,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584621667] [2021-07-01 10:18:36,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584621667] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:18:36,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:18:36,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 10:18:36,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730889432] [2021-07-01 10:18:36,628 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 10:18:36,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:18:36,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 10:18:36,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 10:18:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:36,629 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:18:36,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:18:36,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:36,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:37,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:37,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 10:18:37,019 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:18:37,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:18:37,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1186184491, now seen corresponding path program 1 times [2021-07-01 10:18:37,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:18:37,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448808774] [2021-07-01 10:18:37,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:18:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:18:37,094 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 10:18:37,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:18:37,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448808774] [2021-07-01 10:18:37,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448808774] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:18:37,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:18:37,096 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-01 10:18:37,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018586034] [2021-07-01 10:18:37,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 10:18:37,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:18:37,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 10:18:37,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-01 10:18:37,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:37,097 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:18:37,097 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:18:37,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:37,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:37,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:37,186 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 10:18:37,187 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:18:37,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:18:37,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1185826441, now seen corresponding path program 2 times [2021-07-01 10:18:37,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:18:37,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575113005] [2021-07-01 10:18:37,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:18:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:18:37,253 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 10:18:37,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:18:37,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575113005] [2021-07-01 10:18:37,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575113005] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:18:37,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:18:37,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 10:18:37,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722244552] [2021-07-01 10:18:37,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 10:18:37,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:18:37,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 10:18:37,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-01 10:18:37,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:37,262 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:18:37,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:18:37,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:37,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:37,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:37,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:37,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:37,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:37,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:37,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:18:37,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 10:18:37,525 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:18:37,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:18:37,526 INFO L82 PathProgramCache]: Analyzing trace with hash 844648997, now seen corresponding path program 1 times [2021-07-01 10:18:37,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:18:37,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667746205] [2021-07-01 10:18:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:18:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:18:37,632 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 10:18:37,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:18:37,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667746205] [2021-07-01 10:18:37,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667746205] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:18:37,634 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632869037] [2021-07-01 10:18:37,634 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 10:18:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:18:37,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-01 10:18:37,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:18:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 10:18:37,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632869037] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:18:37,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:18:37,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-07-01 10:18:37,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640715382] [2021-07-01 10:18:37,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 10:18:37,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:18:37,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 10:18:37,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-01 10:18:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:37,833 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:18:37,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 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 10:18:37,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:37,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:37,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:37,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:18:37,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:38,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:38,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:38,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:38,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:18:38,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:18:38,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:18:38,356 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:18:38,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:18:38,357 INFO L82 PathProgramCache]: Analyzing trace with hash 74036772, now seen corresponding path program 1 times [2021-07-01 10:18:38,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:18:38,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285093905] [2021-07-01 10:18:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:18:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:18:38,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 10:18:38,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:18:38,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285093905] [2021-07-01 10:18:38,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285093905] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:18:38,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:18:38,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-01 10:18:38,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389176989] [2021-07-01 10:18:38,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 10:18:38,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:18:38,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 10:18:38,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-07-01 10:18:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:38,497 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:18:38,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 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 10:18:38,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:38,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:38,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:38,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:18:38,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:18:38,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:39,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:39,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:39,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:18:39,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:18:39,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:18:39,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:18:39,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-01 10:18:39,698 INFO L301 ceAbstractionStarter]: Result for error location ServerThreadThread1of1ForFork0 was SAFE (1/2) [2021-07-01 10:18:39,700 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 10:18:39,713 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:18:39,713 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:18:39,713 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:18:39,713 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:18:39,713 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:18:39,714 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:18:39,714 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:18:39,714 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 10:18:39,977 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2021-07-01 10:18:39,978 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 10:18:39,980 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:18:39 BasicIcfg [2021-07-01 10:18:39,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 10:18:39,981 INFO L168 Benchmark]: Toolchain (without parser) took 4314.12 ms. Allocated memory was 203.4 MB in the beginning and 264.2 MB in the end (delta: 60.8 MB). Free memory was 183.1 MB in the beginning and 189.8 MB in the end (delta: -6.7 MB). Peak memory consumption was 175.3 MB. Max. memory is 8.0 GB. [2021-07-01 10:18:39,981 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 203.4 MB. Free memory is still 184.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 10:18:39,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.15 ms. Allocated memory is still 203.4 MB. Free memory was 183.0 MB in the beginning and 181.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 10:18:39,981 INFO L168 Benchmark]: Boogie Preprocessor took 11.27 ms. Allocated memory is still 203.4 MB. Free memory was 181.3 MB in the beginning and 180.4 MB in the end (delta: 848.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 10:18:39,981 INFO L168 Benchmark]: RCFGBuilder took 309.99 ms. Allocated memory is still 203.4 MB. Free memory was 180.3 MB in the beginning and 167.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-01 10:18:39,982 INFO L168 Benchmark]: TraceAbstraction took 3956.18 ms. Allocated memory was 203.4 MB in the beginning and 264.2 MB in the end (delta: 60.8 MB). Free memory was 166.9 MB in the beginning and 189.8 MB in the end (delta: -22.9 MB). Peak memory consumption was 159.5 MB. Max. memory is 8.0 GB. [2021-07-01 10:18:39,982 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 203.4 MB. Free memory is still 184.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 32.15 ms. Allocated memory is still 203.4 MB. Free memory was 183.0 MB in the beginning and 181.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.27 ms. Allocated memory is still 203.4 MB. Free memory was 181.3 MB in the beginning and 180.4 MB in the end (delta: 848.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 309.99 ms. Allocated memory is still 203.4 MB. Free memory was 180.3 MB in the beginning and 167.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3956.18 ms. Allocated memory was 203.4 MB in the beginning and 264.2 MB in the end (delta: 60.8 MB). Free memory was 166.9 MB in the beginning and 189.8 MB in the end (delta: -22.9 MB). Peak memory consumption was 159.5 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: 60163, positive: 55910, positive conditional: 55910, positive unconditional: 0, negative: 4253, negative conditional: 4253, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 56895, positive: 55910, positive conditional: 55910, positive unconditional: 0, negative: 985, negative conditional: 985, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 56895, positive: 49238, positive conditional: 0, positive unconditional: 49238, negative: 7657, negative conditional: 0, negative unconditional: 7657, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 299, positive: 246, positive conditional: 0, positive unconditional: 246, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 299, positive: 207, positive conditional: 0, positive unconditional: 207, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 92, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 341, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 215, negative conditional: 162, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 675, positive: 270, positive conditional: 136, positive unconditional: 134, negative: 405, negative conditional: 280, negative unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 56895, positive: 48992, positive conditional: 0, positive unconditional: 48992, negative: 7604, negative conditional: 0, negative unconditional: 7604, unknown: 299, unknown conditional: 0, unknown unconditional: 299] , Statistics on independence cache: Total cache size (in pairs): 548, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 215, Negative conditional cache size: 162, Negative unconditional cache size: 53, SemanticConditionEliminator.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 341, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 215, negative conditional: 162, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 675, positive: 270, positive conditional: 136, positive unconditional: 134, negative: 405, negative conditional: 280, negative unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 23050, positive: 6585, positive conditional: 6585, positive unconditional: 0, negative: 16216, negative conditional: 8587, negative unconditional: 7629, unknown: 249, unknown conditional: 249, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 548, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 215, Negative conditional cache size: 162, Negative unconditional cache size: 53, Eliminated conditions: 7629, SemanticConditionEliminator.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 341, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 215, negative conditional: 162, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 675, positive: 270, positive conditional: 136, positive unconditional: 134, negative: 405, negative conditional: 280, negative unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 23050, positive: 6585, positive conditional: 6585, positive unconditional: 0, negative: 16216, negative conditional: 8587, negative unconditional: 7629, unknown: 249, unknown conditional: 249, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 548, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 215, Negative conditional cache size: 162, Negative unconditional cache size: 53, Eliminated conditions: 7629, SemanticConditionEliminator.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 341, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 215, negative conditional: 162, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 675, positive: 270, positive conditional: 136, positive unconditional: 134, negative: 405, negative conditional: 280, negative unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 23050, positive: 6585, positive conditional: 6585, positive unconditional: 0, negative: 16216, negative conditional: 8587, negative unconditional: 7629, unknown: 249, unknown conditional: 249, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 548, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 215, Negative conditional cache size: 162, Negative unconditional cache size: 53, Eliminated conditions: 7629, SemanticConditionEliminator.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 341, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 215, negative conditional: 162, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 675, positive: 270, positive conditional: 136, positive unconditional: 134, negative: 405, negative conditional: 280, negative unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 23050, positive: 6585, positive conditional: 6585, positive unconditional: 0, negative: 16216, negative conditional: 8587, negative unconditional: 7629, unknown: 249, unknown conditional: 249, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 548, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 215, Negative conditional cache size: 162, Negative unconditional cache size: 53, Eliminated conditions: 7629, SemanticConditionEliminator.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 341, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 215, negative conditional: 162, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 675, positive: 270, positive conditional: 136, positive unconditional: 134, negative: 405, negative conditional: 280, negative unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 23050, positive: 6585, positive conditional: 6585, positive unconditional: 0, negative: 16216, negative conditional: 8587, negative unconditional: 7629, unknown: 249, unknown conditional: 249, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 548, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 215, Negative conditional cache size: 162, Negative unconditional cache size: 53, Eliminated conditions: 7629, SemanticConditionEliminator.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 23050, positive: 6672, positive conditional: 6672, positive unconditional: 0, negative: 16378, negative conditional: 8749, negative unconditional: 7629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 341, positive: 126, positive conditional: 87, positive unconditional: 39, negative: 215, negative conditional: 162, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 675, positive: 270, positive conditional: 136, positive unconditional: 134, negative: 405, negative conditional: 280, negative unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 23050, positive: 6585, positive conditional: 6585, positive unconditional: 0, negative: 16216, negative conditional: 8587, negative unconditional: 7629, unknown: 249, unknown conditional: 249, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 548, Positive cache size: 333, Positive conditional cache size: 87, Positive unconditional cache size: 246, Negative cache size: 215, Negative conditional cache size: 162, Negative unconditional cache size: 53, Eliminated conditions: 7629 ], Maximal queried relation: 6, Independence queries for same thread: 3268 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6518, positive: 4661, positive conditional: 4661, positive unconditional: 0, negative: 1857, negative conditional: 1857, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 5863, positive: 4661, positive conditional: 4661, positive unconditional: 0, negative: 1202, negative conditional: 1202, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 5863, positive: 4661, positive conditional: 0, positive unconditional: 4661, negative: 1202, negative conditional: 0, negative unconditional: 1202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 209, positive: 170, positive conditional: 0, positive unconditional: 170, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 209, positive: 146, positive conditional: 0, positive unconditional: 146, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 63, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 63, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 159, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 88, negative conditional: 0, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5863, positive: 4491, positive conditional: 0, positive unconditional: 4491, negative: 1163, negative conditional: 0, negative unconditional: 1163, unknown: 209, unknown conditional: 0, unknown unconditional: 209] , Statistics on independence cache: Total cache size (in pairs): 209, Positive cache size: 170, Positive conditional cache size: 0, Positive unconditional cache size: 170, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 ], Maximal queried relation: 0, Independence queries for same thread: 655 - 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: 3528.1ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.7ms, PartialOrderReductionTime: 2350.1ms, 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: 18.8ms SsaConstructionTime, 117.0ms SatisfiabilityAnalysisTime, 545.5ms InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 727 SizeOfPredicates, 0 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 8/10 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: 272.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 261.8ms, 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...