/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-PN-NoLbe.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 06:15:28,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 06:15:28,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 06:15:28,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 06:15:28,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 06:15:28,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 06:15:28,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 06:15:28,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 06:15:28,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 06:15:28,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 06:15:28,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 06:15:28,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 06:15:28,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 06:15:28,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 06:15:28,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 06:15:28,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 06:15:28,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 06:15:28,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 06:15:28,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 06:15:28,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 06:15:28,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 06:15:28,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 06:15:28,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 06:15:28,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 06:15:28,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... 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[2021-03-11 06:15:28,317 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 [2021-03-11 06:15:28,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 06:15:28,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 06:15:28,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 06:15:28,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 06:15:28,353 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 06:15:28,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 06:15:28,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 06:15:28,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 06:15:28,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 06:15:28,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 06:15:28,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 06:15:28,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 06:15:28,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 06:15:28,355 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 06:15:28,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 06:15:28,355 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 06:15:28,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 06:15:28,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 06:15:28,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 06:15:28,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 06:15:28,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 06:15:28,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 06:15:28,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 06:15:28,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 06:15:28,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 06:15:28,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 06:15:28,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 06:15:28,357 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 06:15:28,357 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 06:15:28,357 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 06:15:28,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 06:15:28,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 06:15:28,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 06:15:28,681 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 06:15:28,682 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 06:15:28,683 INFO L432 ainManager$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 06:15:28,683 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 06:15:28,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 06:15:28,707 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 06:15:28,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 06:15:28,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 06:15:28,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 06:15:28,720 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 06:15:28" (1/1) ... [2021-03-11 06:15:28,725 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 06:15:28" (1/1) ... [2021-03-11 06:15:28,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 06:15:28,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 06:15:28,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 06:15:28,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 06:15:28,740 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 06:15:28" (1/1) ... [2021-03-11 06:15:28,741 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 06:15:28" (1/1) ... [2021-03-11 06:15:28,742 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 06:15:28" (1/1) ... [2021-03-11 06:15:28,742 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 06:15:28" (1/1) ... [2021-03-11 06:15:28,744 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 06:15:28" (1/1) ... [2021-03-11 06:15:28,745 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 06:15:28" (1/1) ... [2021-03-11 06:15:28,746 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 06:15:28" (1/1) ... [2021-03-11 06:15:28,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 06:15:28,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 06:15:28,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 06:15:28,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 06:15:28,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:15:28" (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 06:15:28,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-11 06:15:28,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 06:15:28,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 06:15:28,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-11 06:15:28,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 06:15:28,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 06:15:28,806 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 06:15:28,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 06:15:28,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 06:15:28,807 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 06:15:29,025 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 06:15:29,025 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 06:15:29,026 INFO L202 PluginConnector]: Adding new model bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 06:15:29 BoogieIcfgContainer [2021-03-11 06:15:29,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 06:15:29,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 06:15:29,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 06:15:29,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 06:15:29,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 06:15:28" (1/2) ... [2021-03-11 06:15:29,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762b7952 and model type bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 06:15:29, skipping insertion in model container [2021-03-11 06:15:29,031 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 06:15:29" (2/2) ... [2021-03-11 06:15:29,032 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth.wvr.bpl [2021-03-11 06:15:29,048 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 06:15:29,051 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 06:15:29,052 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 06:15:29,102 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-11 06:15:29,116 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 06:15:29,132 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 06:15:29,132 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 06:15:29,132 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 06:15:29,133 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 06:15:29,133 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 06:15:29,133 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 06:15:29,133 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 06:15:29,133 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 06:15:29,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 76 flow [2021-03-11 06:15:29,165 INFO L129 PetriNetUnfolder]: 2/28 cut-off events. [2021-03-11 06:15:29,165 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 06:15:29,168 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 06:15:29,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 30 transitions, 76 flow [2021-03-11 06:15:29,174 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 26 transitions, 64 flow [2021-03-11 06:15:29,195 INFO L129 PetriNetUnfolder]: 2/25 cut-off events. [2021-03-11 06:15:29,195 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 06:15:29,195 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 06:15:29,196 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 06:15:29,196 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 06:15:29,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 06:15:29,200 INFO L82 PathProgramCache]: Analyzing trace with hash 797051895, now seen corresponding path program 1 times [2021-03-11 06:15:29,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 06:15:29,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416683877] [2021-03-11 06:15:29,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 06:15:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 06:15:29,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:15:29,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 06:15:29,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:15:29,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-11 06:15:29,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:15:29,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 06:15:29,363 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 06:15:29,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416683877] [2021-03-11 06:15:29,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 06:15:29,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 06:15:29,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015594636] [2021-03-11 06:15:29,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 06:15:29,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 06:15:29,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 06:15:29,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 06:15:29,387 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 30 [2021-03-11 06:15:29,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:15:29,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 06:15:29,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 30 [2021-03-11 06:15:29,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 06:15:29,428 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2021-03-11 06:15:29,429 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 06:15:29,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 36 events. 4/36 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 1/35 useless extension candidates. Maximal degree in co-relation 34. Up to 9 conditions per place. [2021-03-11 06:15:29,431 INFO L132 encePairwiseOnDemand]: 26/30 looper letters, 3 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2021-03-11 06:15:29,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 28 transitions, 80 flow [2021-03-11 06:15:29,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 06:15:29,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 06:15:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2021-03-11 06:15:29,444 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-11 06:15:29,444 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 82 transitions. [2021-03-11 06:15:29,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 82 transitions. [2021-03-11 06:15:29,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 06:15:29,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 82 transitions. [2021-03-11 06:15:29,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 06:15:29,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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 06:15:29,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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 06:15:29,455 INFO L185 Difference]: Start difference. First operand has 31 places, 26 transitions, 64 flow. Second operand 3 states and 82 transitions. [2021-03-11 06:15:29,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 28 transitions, 80 flow [2021-03-11 06:15:29,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 72 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 06:15:29,464 INFO L241 Difference]: Finished difference. Result has 30 places, 28 transitions, 75 flow [2021-03-11 06:15:29,466 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=30, PETRI_TRANSITIONS=28} [2021-03-11 06:15:29,466 INFO L335 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2021-03-11 06:15:29,466 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 75 flow [2021-03-11 06:15:29,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:15:29,467 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 06:15:29,467 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 06:15:29,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 06:15:29,467 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 06:15:29,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 06:15:29,469 INFO L82 PathProgramCache]: Analyzing trace with hash 409282576, now seen corresponding path program 1 times [2021-03-11 06:15:29,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 06:15:29,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901219417] [2021-03-11 06:15:29,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 06:15:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 06:15:29,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:15:29,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 06:15:29,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:15:29,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-11 06:15:29,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:15:29,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 06:15:29,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:15:29,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 06:15:29,528 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 06:15:29,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901219417] [2021-03-11 06:15:29,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 06:15:29,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 06:15:29,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218122020] [2021-03-11 06:15:29,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 06:15:29,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 06:15:29,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 06:15:29,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 06:15:29,541 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 30 [2021-03-11 06:15:29,542 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 06:15:29,542 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 06:15:29,542 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 30 [2021-03-11 06:15:29,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 06:15:29,574 INFO L129 PetriNetUnfolder]: 5/46 cut-off events. [2021-03-11 06:15:29,574 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 06:15:29,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 46 events. 5/46 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 46. Up to 10 conditions per place. [2021-03-11 06:15:29,575 INFO L132 encePairwiseOnDemand]: 25/30 looper letters, 1 selfloop transitions, 4 changer transitions 4/29 dead transitions. [2021-03-11 06:15:29,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 89 flow [2021-03-11 06:15:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 06:15:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 06:15:29,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2021-03-11 06:15:29,576 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8466666666666667 [2021-03-11 06:15:29,577 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 127 transitions. [2021-03-11 06:15:29,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 127 transitions. [2021-03-11 06:15:29,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 06:15:29,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 127 transitions. [2021-03-11 06:15:29,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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 06:15:29,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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 06:15:29,579 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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 06:15:29,579 INFO L185 Difference]: Start difference. First operand has 30 places, 28 transitions, 75 flow. Second operand 5 states and 127 transitions. [2021-03-11 06:15:29,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 89 flow [2021-03-11 06:15:29,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 06:15:29,581 INFO L241 Difference]: Finished difference. Result has 34 places, 25 transitions, 74 flow [2021-03-11 06:15:29,581 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=74, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2021-03-11 06:15:29,582 INFO L335 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2021-03-11 06:15:29,582 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 74 flow [2021-03-11 06:15:29,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 06:15:29,582 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 06:15:29,582 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 06:15:29,583 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 06:15:29,583 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 06:15:29,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 06:15:29,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1099733180, now seen corresponding path program 1 times [2021-03-11 06:15:29,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 06:15:29,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361700126] [2021-03-11 06:15:29,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 06:15:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 06:15:29,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:15:29,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 06:15:29,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:15:29,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 06:15:29,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:15:29,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 06:15:29,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 06:15:29,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 06:15:29,609 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 06:15:29,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361700126] [2021-03-11 06:15:29,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 06:15:29,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 06:15:29,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385713596] [2021-03-11 06:15:29,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 06:15:29,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 06:15:29,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 06:15:29,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 06:15:29,611 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 30 [2021-03-11 06:15:29,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 06:15:29,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 06:15:29,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 30 [2021-03-11 06:15:29,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 06:15:29,623 INFO L129 PetriNetUnfolder]: 1/23 cut-off events. [2021-03-11 06:15:29,623 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-11 06:15:29,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 23 events. 1/23 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 21. Up to 4 conditions per place. [2021-03-11 06:15:29,623 INFO L132 encePairwiseOnDemand]: 27/30 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2021-03-11 06:15:29,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 23 transitions, 76 flow [2021-03-11 06:15:29,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 06:15:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 06:15:29,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2021-03-11 06:15:29,625 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8416666666666667 [2021-03-11 06:15:29,625 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 101 transitions. [2021-03-11 06:15:29,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 101 transitions. [2021-03-11 06:15:29,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 06:15:29,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 101 transitions. [2021-03-11 06:15:29,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 06:15:29,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 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 06:15:29,627 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 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 06:15:29,627 INFO L185 Difference]: Start difference. First operand has 34 places, 25 transitions, 74 flow. Second operand 4 states and 101 transitions. [2021-03-11 06:15:29,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 23 transitions, 76 flow [2021-03-11 06:15:29,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 56 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-03-11 06:15:29,631 INFO L241 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2021-03-11 06:15:29,631 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2021-03-11 06:15:29,631 INFO L335 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2021-03-11 06:15:29,631 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2021-03-11 06:15:29,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 06:15:29,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 06:15:29,636 INFO L202 PluginConnector]: Adding new model bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 06:15:29 BasicIcfg [2021-03-11 06:15:29,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 06:15:29,638 INFO L168 Benchmark]: Toolchain (without parser) took 932.33 ms. Allocated memory is still 255.9 MB. Free memory was 236.8 MB in the beginning and 197.4 MB in the end (delta: 39.4 MB). Peak memory consumption was 39.6 MB. Max. memory is 16.0 GB. [2021-03-11 06:15:29,639 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory was 238.0 MB in the beginning and 237.8 MB in the end (delta: 203.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 06:15:29,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.78 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 234.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 06:15:29,640 INFO L168 Benchmark]: Boogie Preprocessor took 13.25 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.9 MB in the end (delta: 904.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 06:15:29,642 INFO L168 Benchmark]: RCFGBuilder took 278.98 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 238.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.0 GB. [2021-03-11 06:15:29,645 INFO L168 Benchmark]: TraceAbstraction took 608.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 197.4 MB in the end (delta: 40.4 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.0 GB. [2021-03-11 06:15:29,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory was 238.0 MB in the beginning and 237.8 MB in the end (delta: 203.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.78 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 234.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.25 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.9 MB in the end (delta: 904.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 278.98 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 238.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 608.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 197.4 MB in the end (delta: 40.4 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. EmptinessCheckTime: 20.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 503.4ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 150.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 41.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 1 SDslu, 4 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.7ms SsaConstructionTime, 45.3ms SatisfiabilityAnalysisTime, 112.5ms InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...