/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-DelaySleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth06-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 20:49:08,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 20:49:08,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 20:49:08,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-24 20:49:08,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-24 20:49:08,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-24 20:49:08,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-24 20:49:08,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-24 20:49:08,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-24 20:49:08,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-24 20:49:08,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-24 20:49:08,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-24 20:49:08,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 20:49:08,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 20:49:08,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 20:49:08,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 20:49:08,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 20:49:08,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 20:49:08,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 20:49:08,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 20:49:08,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 20:49:08,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 20:49:08,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 20:49:08,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 20:49:08,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-24 20:49:08,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-24 20:49:08,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-24 20:49:08,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-24 20:49:08,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-24 20:49:08,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-24 20:49:08,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-24 20:49:08,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-24 20:49:08,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-24 20:49:08,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-24 20:49:08,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-24 20:49:08,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-24 20:49:08,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-24 20:49:08,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-24 20:49:08,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-24 20:49:08,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-24 20:49:08,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-24 20:49:08,256 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-DelaySleepPersistentFixedOrder-NoLbe.epf [2021-06-24 20:49:08,282 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 20:49:08,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 20:49:08,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 20:49:08,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 20:49:08,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 20:49:08,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 20:49:08,286 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 20:49:08,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 20:49:08,286 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 20:49:08,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 20:49:08,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 20:49:08,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 20:49:08,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 20:49:08,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 20:49:08,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 20:49:08,287 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 20:49:08,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 20:49:08,287 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 20:49:08,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 20:49:08,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 20:49:08,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 20:49:08,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 20:49:08,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 20:49:08,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 20:49:08,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 20:49:08,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 20:49:08,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 20:49:08,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 20:49:08,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 20:49:08,288 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 20:49:08,289 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 20:49:08,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 20:49:08,289 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET_FIXEDORDER [2021-06-24 20:49:08,289 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 20:49:08,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 20:49:08,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 20:49:08,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 20:49:08,560 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 20:49:08,566 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 20:49:08,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth06-incorrect.bpl [2021-06-24 20:49:08,567 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth06-incorrect.bpl' [2021-06-24 20:49:08,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 20:49:08,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 20:49:08,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 20:49:08,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 20:49:08,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 20:49:08,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 20:49:08,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 20:49:08,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 20:49:08,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 20:49:08,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 20:49:08,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 20:49:08,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 20:49:08,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 20:49:08,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (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 [2021-06-24 20:49:08,704 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 20:49:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 20:49:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 20:49:08,705 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 20:49:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 20:49:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 20:49:08,705 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 20:49:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 20:49:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 20:49:08,706 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-24 20:49:08,939 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 20:49:08,939 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 20:49:08,941 INFO L202 PluginConnector]: Adding new model bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:49:08 BoogieIcfgContainer [2021-06-24 20:49:08,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 20:49:08,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 20:49:08,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 20:49:08,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 20:49:08,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/2) ... [2021-06-24 20:49:08,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413a32a8 and model type bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:49:08, skipping insertion in model container [2021-06-24 20:49:08,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:49:08" (2/2) ... [2021-06-24 20:49:08,946 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth06-incorrect.bpl [2021-06-24 20:49:08,950 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 20:49:08,950 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 20:49:08,950 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 20:49:08,951 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 20:49:08,996 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 20:49:09,017 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 [2021-06-24 20:49:09,075 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 20:49:09,076 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 20:49:09,076 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 20:49:09,076 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 20:49:09,076 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 20:49:09,076 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 20:49:09,076 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 20:49:09,076 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork6======== [2021-06-24 20:49:09,495 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:49:09,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:49:09,499 INFO L82 PathProgramCache]: Analyzing trace with hash 12380355, now seen corresponding path program 1 times [2021-06-24 20:49:09,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:49:09,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122587521] [2021-06-24 20:49:09,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:49:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:49:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 20:49:09,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:49:09,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122587521] [2021-06-24 20:49:09,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122587521] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:49:09,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:49:09,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 20:49:09,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418176259] [2021-06-24 20:49:09,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 20:49:09,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:49:09,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 20:49:09,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 20:49:09,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:09,619 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:49:09,622 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-06-24 20:49:09,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:10,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:10,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 20:49:10,375 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:49:10,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:49:10,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1326673793, now seen corresponding path program 1 times [2021-06-24 20:49:10,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:49:10,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288849332] [2021-06-24 20:49:10,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:49:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:49:10,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 20:49:10,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:49:10,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288849332] [2021-06-24 20:49:10,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288849332] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:49:10,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:49:10,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 20:49:10,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866788869] [2021-06-24 20:49:10,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 20:49:10,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:49:10,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 20:49:10,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 20:49:10,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:10,417 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:49:10,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-06-24 20:49:10,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:10,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:11,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:11,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:11,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 20:49:11,656 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:49:11,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:49:11,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1907743864, now seen corresponding path program 1 times [2021-06-24 20:49:11,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:49:11,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212393773] [2021-06-24 20:49:11,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:49:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:49:11,872 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-24 20:49:11,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:49:11,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212393773] [2021-06-24 20:49:11,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212393773] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 20:49:11,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892995861] [2021-06-24 20:49:11,873 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 [2021-06-24 20:49:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:49:11,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-24 20:49:11,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 20:49:12,283 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-24 20:49:12,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892995861] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 20:49:12,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 20:49:12,284 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-06-24 20:49:12,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508381312] [2021-06-24 20:49:12,284 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-24 20:49:12,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:49:12,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-24 20:49:12,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-06-24 20:49:12,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:12,285 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:49:12,286 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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) [2021-06-24 20:49:12,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:12,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:12,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:50:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:50:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:50:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-24 20:50:59,625 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 20:50:59,626 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:50:59,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:50:59,626 INFO L82 PathProgramCache]: Analyzing trace with hash -753654160, now seen corresponding path program 1 times [2021-06-24 20:50:59,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:50:59,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421950156] [2021-06-24 20:50:59,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:50:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 20:50:59,642 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 20:50:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 20:50:59,655 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 20:50:59,674 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 20:50:59,675 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 20:50:59,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-24 20:50:59,679 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork6 was UNSAFE (1/7) [2021-06-24 20:50:59,680 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 20:50:59,692 INFO L202 PluginConnector]: Adding new model bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:50:59 BasicIcfg [2021-06-24 20:50:59,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 20:50:59,693 INFO L168 Benchmark]: Toolchain (without parser) took 111104.32 ms. Allocated memory was 229.6 MB in the beginning and 3.8 GB in the end (delta: 3.5 GB). Free memory was 209.6 MB in the beginning and 2.4 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. [2021-06-24 20:50:59,693 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 229.6 MB. Free memory is still 210.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 20:50:59,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.74 ms. Allocated memory is still 229.6 MB. Free memory was 209.5 MB in the beginning and 207.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 20:50:59,693 INFO L168 Benchmark]: Boogie Preprocessor took 9.13 ms. Allocated memory is still 229.6 MB. Free memory was 207.7 MB in the beginning and 206.8 MB in the end (delta: 870.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-24 20:50:59,693 INFO L168 Benchmark]: RCFGBuilder took 306.56 ms. Allocated memory is still 229.6 MB. Free memory was 206.7 MB in the beginning and 194.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 20:50:59,693 INFO L168 Benchmark]: TraceAbstraction took 110750.13 ms. Allocated memory was 229.6 MB in the beginning and 3.8 GB in the end (delta: 3.5 GB). Free memory was 193.8 MB in the beginning and 2.4 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2021-06-24 20:50:59,694 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 0.14 ms. Allocated memory is still 229.6 MB. Free memory is still 210.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 34.74 ms. Allocated memory is still 229.6 MB. Free memory was 209.5 MB in the beginning and 207.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.13 ms. Allocated memory is still 229.6 MB. Free memory was 207.7 MB in the beginning and 206.8 MB in the end (delta: 870.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 306.56 ms. Allocated memory is still 229.6 MB. Free memory was 206.7 MB in the beginning and 194.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 110750.13 ms. Allocated memory was 229.6 MB in the beginning and 3.8 GB in the end (delta: 3.5 GB). Free memory was 193.8 MB in the beginning and 2.4 GB in the end (delta: -2.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1313099, positive: 1271436, positive conditional: 1267881, positive unconditional: 3555, negative: 41663, negative conditional: 41511, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1286140, positive: 1271436, positive conditional: 1267881, positive unconditional: 3555, negative: 14704, negative conditional: 14552, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1286140, positive: 1253022, positive conditional: 0, positive unconditional: 1253022, negative: 33118, negative conditional: 0, negative unconditional: 33118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2266, positive: 2170, positive conditional: 0, positive unconditional: 2170, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2266, positive: 2084, positive conditional: 0, positive unconditional: 2084, negative: 182, negative conditional: 0, negative unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 182, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 334, positive: 226, positive conditional: 140, positive unconditional: 86, negative: 108, negative conditional: 12, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 912, positive: 560, positive conditional: 350, positive unconditional: 210, negative: 353, negative conditional: 51, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1286140, positive: 1250852, positive conditional: 0, positive unconditional: 1250852, negative: 33022, negative conditional: 0, negative unconditional: 33022, unknown: 2266, unknown conditional: 0, unknown unconditional: 2266] , Statistics on independence cache: Total cache size (in pairs): 2418, Positive cache size: 2310, Positive conditional cache size: 140, Positive unconditional cache size: 2170, Negative cache size: 108, Negative conditional cache size: 12, Negative unconditional cache size: 96, SemanticConditionEliminator.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 334, positive: 226, positive conditional: 140, positive unconditional: 86, negative: 108, negative conditional: 12, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 912, positive: 560, positive conditional: 350, positive unconditional: 210, negative: 353, negative conditional: 51, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 99031, positive: 18274, positive conditional: 18274, positive unconditional: 0, negative: 80605, negative conditional: 6344, negative unconditional: 74261, unknown: 152, unknown conditional: 152, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2418, Positive cache size: 2310, Positive conditional cache size: 140, Positive unconditional cache size: 2170, Negative cache size: 108, Negative conditional cache size: 12, Negative unconditional cache size: 96, Eliminated conditions: 74008, SemanticConditionEliminator.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 334, positive: 226, positive conditional: 140, positive unconditional: 86, negative: 108, negative conditional: 12, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 912, positive: 560, positive conditional: 350, positive unconditional: 210, negative: 353, negative conditional: 51, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 99031, positive: 18274, positive conditional: 18274, positive unconditional: 0, negative: 80605, negative conditional: 6344, negative unconditional: 74261, unknown: 152, unknown conditional: 152, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2418, Positive cache size: 2310, Positive conditional cache size: 140, Positive unconditional cache size: 2170, Negative cache size: 108, Negative conditional cache size: 12, Negative unconditional cache size: 96, Eliminated conditions: 74008, SemanticConditionEliminator.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 334, positive: 226, positive conditional: 140, positive unconditional: 86, negative: 108, negative conditional: 12, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 912, positive: 560, positive conditional: 350, positive unconditional: 210, negative: 353, negative conditional: 51, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 99031, positive: 18274, positive conditional: 18274, positive unconditional: 0, negative: 80605, negative conditional: 6344, negative unconditional: 74261, unknown: 152, unknown conditional: 152, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2418, Positive cache size: 2310, Positive conditional cache size: 140, Positive unconditional cache size: 2170, Negative cache size: 108, Negative conditional cache size: 12, Negative unconditional cache size: 96, Eliminated conditions: 74008 ], Maximal queried relation: 3, Independence queries for same thread: 26959 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 33519, Number of persistent set computation: 324638, Number of trivial persistent sets: 287242, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1313099, positive: 1271436, positive conditional: 1267881, positive unconditional: 3555, negative: 41663, negative conditional: 41511, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1286140, positive: 1271436, positive conditional: 1267881, positive unconditional: 3555, negative: 14704, negative conditional: 14552, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1286140, positive: 1253022, positive conditional: 0, positive unconditional: 1253022, negative: 33118, negative conditional: 0, negative unconditional: 33118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2266, positive: 2170, positive conditional: 0, positive unconditional: 2170, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2266, positive: 2084, positive conditional: 0, positive unconditional: 2084, negative: 182, negative conditional: 0, negative unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 182, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 334, positive: 226, positive conditional: 140, positive unconditional: 86, negative: 108, negative conditional: 12, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 912, positive: 560, positive conditional: 350, positive unconditional: 210, negative: 353, negative conditional: 51, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1286140, positive: 1250852, positive conditional: 0, positive unconditional: 1250852, negative: 33022, negative conditional: 0, negative unconditional: 33022, unknown: 2266, unknown conditional: 0, unknown unconditional: 2266] , Statistics on independence cache: Total cache size (in pairs): 2418, Positive cache size: 2310, Positive conditional cache size: 140, Positive unconditional cache size: 2170, Negative cache size: 108, Negative conditional cache size: 12, Negative unconditional cache size: 96, SemanticConditionEliminator.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 334, positive: 226, positive conditional: 140, positive unconditional: 86, negative: 108, negative conditional: 12, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 912, positive: 560, positive conditional: 350, positive unconditional: 210, negative: 353, negative conditional: 51, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 99031, positive: 18274, positive conditional: 18274, positive unconditional: 0, negative: 80605, negative conditional: 6344, negative unconditional: 74261, unknown: 152, unknown conditional: 152, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2418, Positive cache size: 2310, Positive conditional cache size: 140, Positive unconditional cache size: 2170, Negative cache size: 108, Negative conditional cache size: 12, Negative unconditional cache size: 96, Eliminated conditions: 74008, SemanticConditionEliminator.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 334, positive: 226, positive conditional: 140, positive unconditional: 86, negative: 108, negative conditional: 12, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 912, positive: 560, positive conditional: 350, positive unconditional: 210, negative: 353, negative conditional: 51, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 99031, positive: 18274, positive conditional: 18274, positive unconditional: 0, negative: 80605, negative conditional: 6344, negative unconditional: 74261, unknown: 152, unknown conditional: 152, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2418, Positive cache size: 2310, Positive conditional cache size: 140, Positive unconditional cache size: 2170, Negative cache size: 108, Negative conditional cache size: 12, Negative unconditional cache size: 96, Eliminated conditions: 74008, SemanticConditionEliminator.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 99031, positive: 18414, positive conditional: 18414, positive unconditional: 0, negative: 80617, negative conditional: 6356, negative unconditional: 74261, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 334, positive: 226, positive conditional: 140, positive unconditional: 86, negative: 108, negative conditional: 12, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 912, positive: 560, positive conditional: 350, positive unconditional: 210, negative: 353, negative conditional: 51, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 99031, positive: 18274, positive conditional: 18274, positive unconditional: 0, negative: 80605, negative conditional: 6344, negative unconditional: 74261, unknown: 152, unknown conditional: 152, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2418, Positive cache size: 2310, Positive conditional cache size: 140, Positive unconditional cache size: 2170, Negative cache size: 108, Negative conditional cache size: 12, Negative unconditional cache size: 96, Eliminated conditions: 74008 ], Maximal queried relation: 3, Independence queries for same thread: 26959 - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 pendingIo := 1; VAL [pendingIo=1] [L14] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L15] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L16] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L18] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 1 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L20] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 3 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 4 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 5 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L23] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 6 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L24] FORK 0 fork 6 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 7 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L69] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L79] 1 pendingIo := pendingIo - 1; [L80] COND TRUE 1 pendingIo == 0 [L81] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L48] 7 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L48] 5 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L37] 5 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L56] 5 pendingIo := pendingIo - 1; [L57] COND FALSE 5 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L48] 6 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L37] 6 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L56] 6 pendingIo := pendingIo - 1; [L57] COND FALSE 6 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L48] 3 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L37] 3 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L56] 3 pendingIo := pendingIo - 1; [L57] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L48] 4 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L37] 4 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L56] 4 pendingIo := pendingIo - 1; [L57] COND FALSE 4 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L48] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L37] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L56] 2 pendingIo := pendingIo - 1; [L57] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L71] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L72] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L37] 7 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadThread1of1ForFork6 with 1 thread instances CFG has 10 procedures, 74 locations, 14 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 110636.2ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.6ms, PartialOrderReductionTime: 109530.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 15, 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: 12.4ms SsaConstructionTime, 80.7ms SatisfiabilityAnalysisTime, 591.7ms InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 177 ConstructedInterpolants, 0 QuantifiedInterpolants, 716 SizeOfPredicates, 1 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 42/54 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...