/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 11:00:44,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 11:00:44,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 11:00:44,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-01 11:00:44,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-01 11:00:44,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-01 11:00:44,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-01 11:00:44,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-01 11:00:44,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-01 11:00:44,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-01 11:00:44,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-01 11:00:44,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-01 11:00:44,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 11:00:44,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 11:00:44,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 11:00:44,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 11:00:44,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 11:00:44,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 11:00:44,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 11:00:44,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 11:00:44,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 11:00:44,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 11:00:44,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 11:00:44,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 11:00:44,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-01 11:00:44,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-01 11:00:44,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-01 11:00:44,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-01 11:00:44,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-01 11:00:44,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-01 11:00:44,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-01 11:00:44,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-01 11:00:44,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-01 11:00:44,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-01 11:00:44,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-01 11:00:44,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-01 11:00:44,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-01 11:00:44,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-01 11:00:44,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 11:00:44,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 11:00:44,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 11:00:44,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Symm.epf [2021-07-01 11:00:44,182 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 11:00:44,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 11:00:44,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 11:00:44,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 11:00:44,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 11:00:44,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 11:00:44,185 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 11:00:44,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 11:00:44,186 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 11:00:44,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 11:00:44,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 11:00:44,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 11:00:44,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 11:00:44,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 11:00:44,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 11:00:44,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 11:00:44,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 11:00:44,187 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 11:00:44,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 11:00:44,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 11:00:44,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 11:00:44,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 11:00:44,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 11:00:44,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:00:44,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 11:00:44,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 11:00:44,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 11:00:44,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 11:00:44,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 11:00:44,188 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 11:00:44,188 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 11:00:44,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 11:00:44,189 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 11:00:44,189 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-07-01 11:00:44,189 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 11:00:44,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 11:00:44,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 11:00:44,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 11:00:44,612 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 11:00:44,613 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 11:00:44,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect03.bpl [2021-07-01 11:00:44,614 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect03.bpl' [2021-07-01 11:00:44,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 11:00:44,640 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 11:00:44,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 11:00:44,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 11:00:44,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 11:00:44,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:44" (1/1) ... [2021-07-01 11:00:44,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:44" (1/1) ... [2021-07-01 11:00:44,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 11:00:44,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 11:00:44,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 11:00:44,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 11:00:44,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:44" (1/1) ... [2021-07-01 11:00:44,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:44" (1/1) ... [2021-07-01 11:00:44,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:44" (1/1) ... [2021-07-01 11:00:44,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:44" (1/1) ... [2021-07-01 11:00:44,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:44" (1/1) ... [2021-07-01 11:00:44,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:44" (1/1) ... [2021-07-01 11:00:44,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:44" (1/1) ... [2021-07-01 11:00:44,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 11:00:44,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 11:00:44,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 11:00:44,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 11:00:44,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:00:44,735 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 11:00:44,735 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 11:00:44,735 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 11:00:44,735 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 11:00:44,735 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 11:00:44,735 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 11:00:44,735 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 11:00:44,735 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 11:00:44,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 11:00:44,735 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 11:00:44,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 11:00:44,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 11:00:44,736 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 11:00:44,886 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 11:00:44,886 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 11:00:44,888 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:00:44 BoogieIcfgContainer [2021-07-01 11:00:44,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 11:00:44,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 11:00:44,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 11:00:44,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 11:00:44,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:44" (1/2) ... [2021-07-01 11:00:44,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e2653f and model type bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:00:44, skipping insertion in model container [2021-07-01 11:00:44,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:00:44" (2/2) ... [2021-07-01 11:00:44,892 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect03.bpl [2021-07-01 11:00:44,896 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 11:00:44,896 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 11:00:44,896 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 11:00:44,896 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 11:00:44,917 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 11:00:44,932 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 11:00:44,964 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:00:44,964 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:00:44,964 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:00:44,964 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:00:44,964 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:00:44,965 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:00:44,965 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:00:44,965 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 11:00:45,301 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 11:00:45,302 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 11:00:45,353 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:00:45,353 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:00:45,353 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:00:45,353 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:00:45,353 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:00:45,354 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:00:45,354 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:00:45,354 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 11:00:45,358 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:00:45,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:00:45,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1813127602, now seen corresponding path program 1 times [2021-07-01 11:00:45,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:00:45,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92239750] [2021-07-01 11:00:45,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:00:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:00:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:00:45,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:00:45,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92239750] [2021-07-01 11:00:45,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92239750] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:00:45,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:00:45,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 11:00:45,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972681059] [2021-07-01 11:00:45,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:00:45,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:00:45,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:00:45,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:00:45,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:00:45,470 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:00:45,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:00:45,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:00:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:45,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 11:00:45,528 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:00:45,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:00:45,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1434969807, now seen corresponding path program 1 times [2021-07-01 11:00:45,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:00:45,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958151628] [2021-07-01 11:00:45,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:00:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:00:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:00:45,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:00:45,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958151628] [2021-07-01 11:00:45,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958151628] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:00:45,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:00:45,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 11:00:45,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490818239] [2021-07-01 11:00:45,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:00:45,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:00:45,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:00:45,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:00:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:00:45,566 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:00:45,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:00:45,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:45,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:00:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:45,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:45,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 11:00:45,739 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:00:45,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:00:45,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1522884269, now seen corresponding path program 1 times [2021-07-01 11:00:45,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:00:45,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293791465] [2021-07-01 11:00:45,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:00:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:00:45,838 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 11:00:45,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:00:45,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293791465] [2021-07-01 11:00:45,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293791465] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:00:45,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:00:45,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 11:00:45,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856598093] [2021-07-01 11:00:45,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 11:00:45,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:00:45,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 11:00:45,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-01 11:00:45,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:00:45,840 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:00:45,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:00:45,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:45,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:45,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:00:46,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:00:46,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 11:00:46,105 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:00:46,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:00:46,106 INFO L82 PathProgramCache]: Analyzing trace with hash 650399569, now seen corresponding path program 1 times [2021-07-01 11:00:46,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:00:46,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523551883] [2021-07-01 11:00:46,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:00:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 11:00:46,125 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 11:00:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 11:00:46,128 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 11:00:46,140 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-01 11:00:46,140 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-07-01 11:00:46,141 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 11:00:46,147 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was UNSAFE (2/2) [2021-07-01 11:00:46,151 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 11:00:46,188 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:00:46 BasicIcfg [2021-07-01 11:00:46,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 11:00:46,189 INFO L168 Benchmark]: Toolchain (without parser) took 1548.91 ms. Allocated memory is still 241.2 MB. Free memory was 219.5 MB in the beginning and 218.8 MB in the end (delta: 749.9 kB). Peak memory consumption was 106.2 MB. Max. memory is 8.0 GB. [2021-07-01 11:00:46,190 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 241.2 MB. Free memory is still 220.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 11:00:46,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.23 ms. Allocated memory is still 241.2 MB. Free memory was 219.4 MB in the beginning and 217.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 11:00:46,190 INFO L168 Benchmark]: Boogie Preprocessor took 9.25 ms. Allocated memory is still 241.2 MB. Free memory was 217.6 MB in the beginning and 216.7 MB in the end (delta: 871.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:00:46,190 INFO L168 Benchmark]: RCFGBuilder took 205.75 ms. Allocated memory is still 241.2 MB. Free memory was 216.7 MB in the beginning and 202.5 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-01 11:00:46,191 INFO L168 Benchmark]: TraceAbstraction took 1299.85 ms. Allocated memory is still 241.2 MB. Free memory was 202.0 MB in the beginning and 218.8 MB in the end (delta: -16.8 MB). Peak memory consumption was 88.4 MB. Max. memory is 8.0 GB. [2021-07-01 11:00:46,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 241.2 MB. Free memory is still 220.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 30.23 ms. Allocated memory is still 241.2 MB. Free memory was 219.4 MB in the beginning and 217.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.25 ms. Allocated memory is still 241.2 MB. Free memory was 217.6 MB in the beginning and 216.7 MB in the end (delta: 871.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 205.75 ms. Allocated memory is still 241.2 MB. Free memory was 216.7 MB in the beginning and 202.5 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1299.85 ms. Allocated memory is still 241.2 MB. Free memory was 202.0 MB in the beginning and 218.8 MB in the end (delta: -16.8 MB). Peak memory consumption was 88.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1154, positive: 906, positive conditional: 906, positive unconditional: 0, negative: 248, negative conditional: 248, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1035, positive: 906, positive conditional: 906, positive unconditional: 0, negative: 129, negative conditional: 129, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1035, positive: 906, positive conditional: 0, positive unconditional: 906, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 90, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 90, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 192, positive: 87, positive conditional: 0, positive unconditional: 87, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1035, positive: 826, positive conditional: 0, positive unconditional: 826, negative: 119, negative conditional: 0, negative unconditional: 119, unknown: 90, unknown conditional: 0, unknown unconditional: 90] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 ], Maximal queried relation: 0, Independence queries for same thread: 119 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7120, positive: 6287, positive conditional: 6287, positive unconditional: 0, negative: 833, negative conditional: 833, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 6675, positive: 6287, positive conditional: 6287, positive unconditional: 0, negative: 388, negative conditional: 388, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 6675, positive: 6177, positive conditional: 0, positive unconditional: 6177, negative: 498, negative conditional: 0, negative unconditional: 498, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 156, positive: 140, positive conditional: 0, positive unconditional: 140, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 156, positive: 133, positive conditional: 0, positive unconditional: 133, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 21, positive conditional: 14, positive unconditional: 7, negative: 24, negative conditional: 8, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 205, positive: 120, positive conditional: 51, positive unconditional: 69, negative: 85, negative conditional: 25, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6675, positive: 6037, positive conditional: 0, positive unconditional: 6037, negative: 482, negative conditional: 0, negative unconditional: 482, unknown: 156, unknown conditional: 0, unknown unconditional: 156] , Statistics on independence cache: Total cache size (in pairs): 178, Positive cache size: 154, Positive conditional cache size: 14, Positive unconditional cache size: 140, Negative cache size: 24, Negative conditional cache size: 8, Negative unconditional cache size: 16, SemanticConditionEliminator.Independence Queries: [ total: 1324, positive: 110, positive conditional: 110, positive unconditional: 0, negative: 1214, negative conditional: 75, negative unconditional: 1139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1324, positive: 110, positive conditional: 110, positive unconditional: 0, negative: 1214, negative conditional: 75, negative unconditional: 1139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 21, positive conditional: 14, positive unconditional: 7, negative: 24, negative conditional: 8, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 205, positive: 120, positive conditional: 51, positive unconditional: 69, negative: 85, negative conditional: 25, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1324, positive: 96, positive conditional: 96, positive unconditional: 0, negative: 1206, negative conditional: 67, negative unconditional: 1139, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 178, Positive cache size: 154, Positive conditional cache size: 14, Positive unconditional cache size: 140, Negative cache size: 24, Negative conditional cache size: 8, Negative unconditional cache size: 16, Eliminated conditions: 1139, SemanticConditionEliminator.Independence Queries: [ total: 1324, positive: 110, positive conditional: 110, positive unconditional: 0, negative: 1214, negative conditional: 75, negative unconditional: 1139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1324, positive: 110, positive conditional: 110, positive unconditional: 0, negative: 1214, negative conditional: 75, negative unconditional: 1139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 21, positive conditional: 14, positive unconditional: 7, negative: 24, negative conditional: 8, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 205, positive: 120, positive conditional: 51, positive unconditional: 69, negative: 85, negative conditional: 25, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1324, positive: 96, positive conditional: 96, positive unconditional: 0, negative: 1206, negative conditional: 67, negative unconditional: 1139, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 178, Positive cache size: 154, Positive conditional cache size: 14, Positive unconditional cache size: 140, Negative cache size: 24, Negative conditional cache size: 8, Negative unconditional cache size: 16, Eliminated conditions: 1139, SemanticConditionEliminator.Independence Queries: [ total: 1324, positive: 110, positive conditional: 110, positive unconditional: 0, negative: 1214, negative conditional: 75, negative unconditional: 1139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1324, positive: 110, positive conditional: 110, positive unconditional: 0, negative: 1214, negative conditional: 75, negative unconditional: 1139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 21, positive conditional: 14, positive unconditional: 7, negative: 24, negative conditional: 8, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 205, positive: 120, positive conditional: 51, positive unconditional: 69, negative: 85, negative conditional: 25, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1324, positive: 96, positive conditional: 96, positive unconditional: 0, negative: 1206, negative conditional: 67, negative unconditional: 1139, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 178, Positive cache size: 154, Positive conditional cache size: 14, Positive unconditional cache size: 140, Negative cache size: 24, Negative conditional cache size: 8, Negative unconditional cache size: 16, Eliminated conditions: 1139 ], Maximal queried relation: 3, Independence queries for same thread: 445 - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 pendingIo := 1; VAL [pendingIo=1] [L15] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L16] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L17] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 1 DeviceThreadWithAssert(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L58] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L80] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L90] 1 pendingIo := pendingIo - 1; [L91] COND TRUE 1 pendingIo == 0 [L92] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L59] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L82] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L83] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L36] 2 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 8 procedures, 50 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 358.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.9ms, PartialOrderReductionTime: 319.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 8 procedures, 50 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 835.2ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 496.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.0ms SsaConstructionTime, 40.6ms SatisfiabilityAnalysisTime, 129.4ms InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 8/8 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...