/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-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 18:22:07,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 18:22:07,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 18:22:07,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-24 18:22:07,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-24 18:22:07,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-24 18:22:07,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-24 18:22:07,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-24 18:22:07,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-24 18:22:07,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-24 18:22:07,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-24 18:22:07,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-24 18:22:07,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 18:22:07,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 18:22:07,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 18:22:07,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 18:22:07,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 18:22:07,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 18:22:07,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 18:22:07,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 18:22:07,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 18:22:07,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 18:22:07,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 18:22:07,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 18:22:07,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-24 18:22:07,887 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-PN-NoLbe.epf [2021-06-24 18:22:07,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 18:22:07,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 18:22:07,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 18:22:07,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 18:22:07,928 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 18:22:07,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 18:22:07,929 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 18:22:07,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 18:22:07,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 18:22:07,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 18:22:07,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 18:22:07,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 18:22:07,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 18:22:07,930 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 18:22:07,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 18:22:07,930 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 18:22:07,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 18:22:07,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 18:22:07,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 18:22:07,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 18:22:07,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 18:22:07,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 18:22:07,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 18:22:07,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 18:22:07,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 18:22:07,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 18:22:07,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 18:22:07,931 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 18:22:07,932 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-24 18:22:07,932 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 18:22:08,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 18:22:08,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 18:22:08,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 18:22:08,230 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 18:22:08,231 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 18:22:08,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth01.bpl [2021-06-24 18:22:08,232 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth01.bpl' [2021-06-24 18:22:08,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 18:22:08,267 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 18:22:08,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 18:22:08,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 18:22:08,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 18:22:08,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:22:08" (1/1) ... [2021-06-24 18:22:08,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:22:08" (1/1) ... [2021-06-24 18:22:08,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 18:22:08,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 18:22:08,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 18:22:08,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 18:22:08,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:22:08" (1/1) ... [2021-06-24 18:22:08,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:22:08" (1/1) ... [2021-06-24 18:22:08,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:22:08" (1/1) ... [2021-06-24 18:22:08,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:22:08" (1/1) ... [2021-06-24 18:22:08,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:22:08" (1/1) ... [2021-06-24 18:22:08,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:22:08" (1/1) ... [2021-06-24 18:22:08,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:22:08" (1/1) ... [2021-06-24 18:22:08,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 18:22:08,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 18:22:08,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 18:22:08,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 18:22:08,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:22:08" (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 18:22:08,355 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 18:22:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 18:22:08,355 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 18:22:08,355 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 18:22:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 18:22:08,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 18:22:08,355 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 18:22:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 18:22:08,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 18:22:08,356 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 18:22:08,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 18:22:08,505 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 18:22:08,506 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-06-24 18:22:08,507 INFO L202 PluginConnector]: Adding new model bluetooth01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 06:22:08 BoogieIcfgContainer [2021-06-24 18:22:08,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 18:22:08,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 18:22:08,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 18:22:08,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 18:22:08,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:22:08" (1/2) ... [2021-06-24 18:22:08,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448fbcc9 and model type bluetooth01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 06:22:08, skipping insertion in model container [2021-06-24 18:22:08,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 06:22:08" (2/2) ... [2021-06-24 18:22:08,513 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth01.bpl [2021-06-24 18:22:08,517 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 18:22:08,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 18:22:08,517 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 18:22:08,548 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 18:22:08,564 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-24 18:22:08,579 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 18:22:08,580 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 18:22:08,580 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 18:22:08,580 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 18:22:08,580 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 18:22:08,580 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 18:22:08,580 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 18:22:08,580 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-24 18:22:08,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 19 transitions, 48 flow [2021-06-24 18:22:08,598 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-06-24 18:22:08,598 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-24 18:22:08,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 17 events. 1/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 14. Up to 2 conditions per place. [2021-06-24 18:22:08,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 19 transitions, 48 flow [2021-06-24 18:22:08,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-24 18:22:08,602 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-24 18:22:08,602 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-24 18:22:08,603 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-06-24 18:22:08,604 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-24 18:22:08,608 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 18:22:08,608 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 18:22:08,608 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 18:22:08,608 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 18:22:08,608 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 18:22:08,608 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 18:22:08,608 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 18:22:08,608 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork1======== [2021-06-24 18:22:08,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 19 transitions, 48 flow [2021-06-24 18:22:08,617 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-06-24 18:22:08,618 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-24 18:22:08,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 17 events. 1/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 14. Up to 2 conditions per place. [2021-06-24 18:22:08,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 19 transitions, 48 flow [2021-06-24 18:22:08,620 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 16 transitions, 38 flow [2021-06-24 18:22:08,624 INFO L129 PetriNetUnfolder]: 1/13 cut-off events. [2021-06-24 18:22:08,625 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-24 18:22:08,625 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-24 18:22:08,625 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-24 18:22:08,626 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 18:22:08,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 18:22:08,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1746182700, now seen corresponding path program 1 times [2021-06-24 18:22:08,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 18:22:08,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867273307] [2021-06-24 18:22:08,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 18:22:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 18:22:08,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-24 18:22:08,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-24 18:22:08,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-24 18:22:08,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-06-24 18:22:08,742 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 18:22:08,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 18:22:08,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867273307] [2021-06-24 18:22:08,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867273307] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 18:22:08,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 18:22:08,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-24 18:22:08,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316750916] [2021-06-24 18:22:08,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 18:22:08,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 18:22:08,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 18:22:08,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 18:22:08,769 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 19 [2021-06-24 18:22:08,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 18:22:08,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-24 18:22:08,776 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 19 [2021-06-24 18:22:08,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-24 18:22:08,829 INFO L129 PetriNetUnfolder]: 2/22 cut-off events. [2021-06-24 18:22:08,829 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-24 18:22:08,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 22 events. 2/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 25. Up to 4 conditions per place. [2021-06-24 18:22:08,830 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 2 selfloop transitions, 2 changer transitions 1/17 dead transitions. [2021-06-24 18:22:08,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 50 flow [2021-06-24 18:22:08,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 18:22:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-24 18:22:08,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2021-06-24 18:22:08,841 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8947368421052632 [2021-06-24 18:22:08,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 51 transitions. [2021-06-24 18:22:08,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 51 transitions. [2021-06-24 18:22:08,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-24 18:22:08,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 51 transitions. [2021-06-24 18:22:08,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 18:22:08,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 18:22:08,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 18:22:08,849 INFO L185 Difference]: Start difference. First operand has 22 places, 16 transitions, 38 flow. Second operand 3 states and 51 transitions. [2021-06-24 18:22:08,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 50 flow [2021-06-24 18:22:08,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 48 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-24 18:22:08,857 INFO L241 Difference]: Finished difference. Result has 24 places, 16 transitions, 48 flow [2021-06-24 18:22:08,858 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2021-06-24 18:22:08,858 INFO L335 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2021-06-24 18:22:08,858 INFO L482 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 48 flow [2021-06-24 18:22:08,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 18:22:08,859 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-24 18:22:08,859 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-24 18:22:08,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 18:22:08,860 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 18:22:08,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 18:22:08,861 INFO L82 PathProgramCache]: Analyzing trace with hash 732555178, now seen corresponding path program 1 times [2021-06-24 18:22:08,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 18:22:08,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855719282] [2021-06-24 18:22:08,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 18:22:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 18:22:08,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-24 18:22:08,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-24 18:22:08,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-24 18:22:08,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-24 18:22:08,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-24 18:22:08,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-24 18:22:08,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-24 18:22:08,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-06-24 18:22:08,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-24 18:22:08,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-24 18:22:08,965 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 18:22:08,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 18:22:08,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855719282] [2021-06-24 18:22:08,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855719282] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 18:22:08,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 18:22:08,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-24 18:22:08,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542464148] [2021-06-24 18:22:08,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-24 18:22:08,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 18:22:08,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-24 18:22:08,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-24 18:22:08,972 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 19 [2021-06-24 18:22:08,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 48 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 18:22:08,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-24 18:22:08,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 19 [2021-06-24 18:22:08,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-24 18:22:09,023 INFO L129 PetriNetUnfolder]: 6/30 cut-off events. [2021-06-24 18:22:09,025 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-24 18:22:09,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 30 events. 6/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 2 based on Foata normal form. 1/31 useless extension candidates. Maximal degree in co-relation 49. Up to 12 conditions per place. [2021-06-24 18:22:09,027 INFO L132 encePairwiseOnDemand]: 13/19 looper letters, 3 selfloop transitions, 7 changer transitions 0/20 dead transitions. [2021-06-24 18:22:09,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 76 flow [2021-06-24 18:22:09,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-24 18:22:09,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-24 18:22:09,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2021-06-24 18:22:09,034 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-06-24 18:22:09,034 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 76 transitions. [2021-06-24 18:22:09,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 76 transitions. [2021-06-24 18:22:09,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-24 18:22:09,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 76 transitions. [2021-06-24 18:22:09,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 18:22:09,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 18:22:09,039 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 18:22:09,040 INFO L185 Difference]: Start difference. First operand has 24 places, 16 transitions, 48 flow. Second operand 5 states and 76 transitions. [2021-06-24 18:22:09,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 76 flow [2021-06-24 18:22:09,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-24 18:22:09,043 INFO L241 Difference]: Finished difference. Result has 27 places, 20 transitions, 78 flow [2021-06-24 18:22:09,044 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=78, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2021-06-24 18:22:09,044 INFO L335 CegarLoopForPetriNet]: 22 programPoint places, 5 predicate places. [2021-06-24 18:22:09,044 INFO L482 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 78 flow [2021-06-24 18:22:09,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 18:22:09,044 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-24 18:22:09,044 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-24 18:22:09,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 18:22:09,045 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 18:22:09,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 18:22:09,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1927449046, now seen corresponding path program 2 times [2021-06-24 18:22:09,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 18:22:09,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952649903] [2021-06-24 18:22:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 18:22:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 18:22:09,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-24 18:22:09,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-24 18:22:09,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-24 18:22:09,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-24 18:22:09,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-24 18:22:09,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-24 18:22:09,073 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 18:22:09,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 18:22:09,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952649903] [2021-06-24 18:22:09,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952649903] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 18:22:09,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 18:22:09,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 18:22:09,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748902613] [2021-06-24 18:22:09,074 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 18:22:09,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 18:22:09,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 18:22:09,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 18:22:09,076 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 19 [2021-06-24 18:22:09,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 18:22:09,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-24 18:22:09,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 19 [2021-06-24 18:22:09,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-24 18:22:09,086 INFO L129 PetriNetUnfolder]: 1/21 cut-off events. [2021-06-24 18:22:09,086 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-06-24 18:22:09,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 21 events. 1/21 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 5/26 useless extension candidates. Maximal degree in co-relation 34. Up to 6 conditions per place. [2021-06-24 18:22:09,086 INFO L132 encePairwiseOnDemand]: 17/19 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2021-06-24 18:22:09,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 72 flow [2021-06-24 18:22:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 18:22:09,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-24 18:22:09,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2021-06-24 18:22:09,088 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9122807017543859 [2021-06-24 18:22:09,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 52 transitions. [2021-06-24 18:22:09,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 52 transitions. [2021-06-24 18:22:09,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-24 18:22:09,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 52 transitions. [2021-06-24 18:22:09,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 18:22:09,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 18:22:09,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 18:22:09,090 INFO L185 Difference]: Start difference. First operand has 27 places, 20 transitions, 78 flow. Second operand 3 states and 52 transitions. [2021-06-24 18:22:09,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 72 flow [2021-06-24 18:22:09,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 61 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-06-24 18:22:09,091 INFO L241 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2021-06-24 18:22:09,091 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2021-06-24 18:22:09,092 INFO L335 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2021-06-24 18:22:09,092 INFO L482 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2021-06-24 18:22:09,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 18:22:09,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 18:22:09,092 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork1 was SAFE (2/2) [2021-06-24 18:22:09,092 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 18:22:09,095 INFO L202 PluginConnector]: Adding new model bluetooth01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 06:22:09 BasicIcfg [2021-06-24 18:22:09,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 18:22:09,097 INFO L168 Benchmark]: Toolchain (without parser) took 829.32 ms. Allocated memory is still 205.5 MB. Free memory was 186.0 MB in the beginning and 164.5 MB in the end (delta: 21.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 8.0 GB. [2021-06-24 18:22:09,097 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 205.5 MB. Free memory is still 187.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 18:22:09,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.40 ms. Allocated memory is still 205.5 MB. Free memory was 185.8 MB in the beginning and 184.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 18:22:09,098 INFO L168 Benchmark]: Boogie Preprocessor took 10.20 ms. Allocated memory is still 205.5 MB. Free memory was 184.0 MB in the beginning and 183.1 MB in the end (delta: 941.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 18:22:09,099 INFO L168 Benchmark]: RCFGBuilder took 203.83 ms. Allocated memory is still 205.5 MB. Free memory was 183.1 MB in the beginning and 170.7 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 18:22:09,102 INFO L168 Benchmark]: TraceAbstraction took 586.90 ms. Allocated memory is still 205.5 MB. Free memory was 170.2 MB in the beginning and 164.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 8.0 GB. [2021-06-24 18:22:09,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 205.5 MB. Free memory is still 187.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.40 ms. Allocated memory is still 205.5 MB. Free memory was 185.8 MB in the beginning and 184.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.20 ms. Allocated memory is still 205.5 MB. Free memory was 184.0 MB in the beginning and 183.1 MB in the end (delta: 941.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 203.83 ms. Allocated memory is still 205.5 MB. Free memory was 183.1 MB in the beginning and 170.7 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 586.90 ms. Allocated memory is still 205.5 MB. Free memory was 170.2 MB in the beginning and 164.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 27.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.9ms, PartialOrderReductionTime: 0.0ms, 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: DeviceThreadThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 485.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 187.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 9 SDtfs, 2 SDslu, 3 SDs, 0 SdLazy, 19 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 42.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=2, InterpolantAutomatonStates: 11, 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: 8.5ms SsaConstructionTime, 27.4ms SatisfiabilityAnalysisTime, 142.4ms InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...