/usr/bin/java -Xmx16000000000 -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-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bluetooth.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 16:02:01,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 16:02:01,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 16:02:01,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 16:02:01,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 16:02:01,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 16:02:01,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 16:02:01,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 16:02:01,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 16:02:01,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 16:02:01,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 16:02:01,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 16:02:01,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 16:02:01,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 16:02:01,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 16:02:01,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 16:02:01,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 16:02:01,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 16:02:01,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 16:02:01,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 16:02:01,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 16:02:01,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 16:02:01,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 16:02:01,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 16:02:01,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 16:02:01,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 16:02:01,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 16:02:01,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 16:02:01,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 16:02:01,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 16:02:01,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 16:02:01,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 16:02:01,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 16:02:01,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 16:02:01,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 16:02:01,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 16:02:01,919 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-FA-SemanticLbe.epf [2021-03-11 16:02:01,941 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 16:02:01,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 16:02:01,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 16:02:01,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 16:02:01,942 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 16:02:01,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 16:02:01,943 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 16:02:01,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 16:02:01,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 16:02:01,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 16:02:01,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 16:02:01,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 16:02:01,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 16:02:01,943 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 16:02:01,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 16:02:01,944 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 16:02:01,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 16:02:01,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 16:02:01,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 16:02:01,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 16:02:01,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 16:02:01,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 16:02:01,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 16:02:01,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 16:02:01,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 16:02:01,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 16:02:01,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 16:02:01,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 16:02:01,945 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 16:02:02,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 16:02:02,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 16:02:02,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 16:02:02,253 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 16:02:02,255 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 16:02:02,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bluetooth.wvr.bpl [2021-03-11 16:02:02,256 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bluetooth.wvr.bpl' [2021-03-11 16:02:02,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 16:02:02,301 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 16:02:02,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 16:02:02,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 16:02:02,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 16:02:02,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:02" (1/1) ... [2021-03-11 16:02:02,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:02" (1/1) ... [2021-03-11 16:02:02,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 16:02:02,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 16:02:02,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 16:02:02,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 16:02:02,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:02" (1/1) ... [2021-03-11 16:02:02,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:02" (1/1) ... [2021-03-11 16:02:02,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:02" (1/1) ... [2021-03-11 16:02:02,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:02" (1/1) ... [2021-03-11 16:02:02,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:02" (1/1) ... [2021-03-11 16:02:02,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:02" (1/1) ... [2021-03-11 16:02:02,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:02" (1/1) ... [2021-03-11 16:02:02,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 16:02:02,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 16:02:02,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 16:02:02,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 16:02:02,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:02" (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 [2021-03-11 16:02:02,391 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-11 16:02:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 16:02:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 16:02:02,391 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-11 16:02:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 16:02:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 16:02:02,391 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 16:02:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 16:02:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 16:02:02,392 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 16:02:02,593 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 16:02:02,593 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 16:02:02,596 INFO L202 PluginConnector]: Adding new model bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:02:02 BoogieIcfgContainer [2021-03-11 16:02:02,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 16:02:02,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 16:02:02,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 16:02:02,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 16:02:02,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:02" (1/2) ... [2021-03-11 16:02:02,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659fcfe1 and model type bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:02:02, skipping insertion in model container [2021-03-11 16:02:02,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:02:02" (2/2) ... [2021-03-11 16:02:02,609 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth.wvr.bpl [2021-03-11 16:02:02,616 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 16:02:02,617 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 16:02:02,620 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 16:02:02,621 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 16:02:02,669 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-11 16:02:02,684 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 16:02:02,712 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 16:02:02,713 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 16:02:02,713 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 16:02:02,713 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 16:02:02,713 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 16:02:02,713 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 16:02:02,713 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 16:02:02,713 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 16:02:02,726 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 16:02:02,734 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 30 transitions, 76 flow [2021-03-11 16:02:02,738 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 30 transitions, 76 flow [2021-03-11 16:02:02,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 76 flow [2021-03-11 16:02:02,769 INFO L129 PetriNetUnfolder]: 2/28 cut-off events. [2021-03-11 16:02:02,769 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 16:02:02,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 2/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2021-03-11 16:02:02,776 INFO L116 LiptonReduction]: Number of co-enabled transitions 124 [2021-03-11 16:02:03,233 INFO L131 LiptonReduction]: Checked pairs total: 347 [2021-03-11 16:02:03,233 INFO L133 LiptonReduction]: Total number of compositions: 16 [2021-03-11 16:02:03,244 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 16 transitions, 48 flow [2021-03-11 16:02:03,250 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 34 states, 32 states have (on average 1.625) internal successors, (52), 33 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) [2021-03-11 16:02:03,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.625) internal successors, (52), 33 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) [2021-03-11 16:02:03,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-03-11 16:02:03,263 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:03,263 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:03,264 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:03,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:03,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1035117120, now seen corresponding path program 1 times [2021-03-11 16:02:03,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:03,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987819040] [2021-03-11 16:02:03,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:03,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:03,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-11 16:02:03,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:03,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:03,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:03,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987819040] [2021-03-11 16:02:03,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:03,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 16:02:03,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515197236] [2021-03-11 16:02:03,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 16:02:03,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:03,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 16:02:03,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 16:02:03,383 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.625) internal successors, (52), 33 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) Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-03-11 16:02:03,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:03,409 INFO L93 Difference]: Finished difference Result 38 states and 55 transitions. [2021-03-11 16:02:03,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 16:02:03,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) Word has length 13 [2021-03-11 16:02:03,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:03,414 INFO L225 Difference]: With dead ends: 38 [2021-03-11 16:02:03,414 INFO L226 Difference]: Without dead ends: 14 [2021-03-11 16:02:03,415 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 16:02:03,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-03-11 16:02:03,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-03-11 16:02:03,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 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) [2021-03-11 16:02:03,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-03-11 16:02:03,437 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2021-03-11 16:02:03,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:03,437 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-03-11 16:02:03,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-03-11 16:02:03,438 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-03-11 16:02:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-03-11 16:02:03,439 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:03,439 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:03,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 16:02:03,439 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:03,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:03,439 INFO L82 PathProgramCache]: Analyzing trace with hash 590177762, now seen corresponding path program 2 times [2021-03-11 16:02:03,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:03,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887947942] [2021-03-11 16:02:03,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:03,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:03,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:03,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:03,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:03,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:03,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:03,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:03,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887947942] [2021-03-11 16:02:03,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:03,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 16:02:03,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597781503] [2021-03-11 16:02:03,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 16:02:03,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:03,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 16:02:03,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 16:02:03,495 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-03-11 16:02:03,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:03,505 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-03-11 16:02:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 16:02:03,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) Word has length 13 [2021-03-11 16:02:03,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:03,506 INFO L225 Difference]: With dead ends: 13 [2021-03-11 16:02:03,506 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 16:02:03,507 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 16:02:03,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 16:02:03,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 16:02:03,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-03-11 16:02:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 16:02:03,509 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-03-11 16:02:03,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:03,509 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 16:02:03,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-03-11 16:02:03,510 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 16:02:03,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 16:02:03,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 16:02:03,547 INFO L202 PluginConnector]: Adding new model bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 04:02:03 BasicIcfg [2021-03-11 16:02:03,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 16:02:03,555 INFO L168 Benchmark]: Toolchain (without parser) took 1252.62 ms. Allocated memory was 255.9 MB in the beginning and 335.5 MB in the end (delta: 79.7 MB). Free memory was 236.5 MB in the beginning and 319.9 MB in the end (delta: -83.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.0 GB. [2021-03-11 16:02:03,556 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 16:02:03,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.42 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 16:02:03,558 INFO L168 Benchmark]: Boogie Preprocessor took 15.12 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.6 MB in the end (delta: 893.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 16:02:03,559 INFO L168 Benchmark]: RCFGBuilder took 253.33 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 238.1 MB in the end (delta: -4.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.0 GB. [2021-03-11 16:02:03,563 INFO L168 Benchmark]: TraceAbstraction took 949.80 ms. Allocated memory was 255.9 MB in the beginning and 335.5 MB in the end (delta: 79.7 MB). Free memory was 238.1 MB in the beginning and 319.9 MB in the end (delta: -81.9 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.0 GB. [2021-03-11 16:02:03,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.42 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.12 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.6 MB in the end (delta: 893.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 253.33 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 238.1 MB in the end (delta: -4.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 949.80 ms. Allocated memory was 255.9 MB in the beginning and 335.5 MB in the end (delta: 79.7 MB). Free memory was 238.1 MB in the beginning and 319.9 MB in the end (delta: -81.9 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 495.8ms, 35 PlacesBefore, 23 PlacesAfterwards, 30 TransitionsBefore, 16 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 3 FixpointIterations, 8 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 2 ChoiceCompositions, 16 TotalNumberOfCompositions, 347 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 198, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 104, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 104, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 177, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 133, negative conditional: 0, negative unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 198, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 104, unknown conditional: 0, unknown unconditional: 104] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - PositiveResult [Line: 57]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 801.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 13.7ms, AutomataDifference: 57.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 536.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 23 SDtfs, 18 SDslu, 11 SDs, 0 SdLazy, 7 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 13.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.8ms SsaConstructionTime, 39.2ms SatisfiabilityAnalysisTime, 59.0ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...