/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 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 16:16:15,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 16:16:15,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 16:16:15,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 16:16:15,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 16:16:15,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 16:16:15,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 16:16:15,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 16:16:15,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 16:16:15,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 16:16:15,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 16:16:15,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 16:16:15,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 16:16:15,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 16:16:15,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 16:16:15,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 16:16:15,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 16:16:15,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 16:16:15,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 16:16:15,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 16:16:15,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 16:16:15,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 16:16:15,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 16:16:15,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 16:16:15,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 16:16:15,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 16:16:15,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 16:16:15,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 16:16:15,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 16:16:15,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 16:16:15,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 16:16:15,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 16:16:15,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 16:16:15,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 16:16:15,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 16:16:15,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 16:16:15,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 16:16:15,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 16:16:15,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 16:16:15,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 16:16:15,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 16:16:15,107 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 [2021-06-10 16:16:15,125 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 16:16:15,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 16:16:15,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 16:16:15,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 16:16:15,127 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 16:16:15,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 16:16:15,127 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 16:16:15,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 16:16:15,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 16:16:15,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 16:16:15,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 16:16:15,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 16:16:15,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 16:16:15,128 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 16:16:15,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 16:16:15,128 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 16:16:15,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 16:16:15,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 16:16:15,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 16:16:15,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 16:16:15,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 16:16:15,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 16:16:15,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 16:16:15,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 16:16:15,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 16:16:15,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 16:16:15,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 16:16:15,130 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 16:16:15,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 16:16:15,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 16:16:15,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 16:16:15,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 16:16:15,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 16:16:15,446 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-10 16:16:15,447 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-10 16:16:15,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bluetooth.wvr.bpl [2021-06-10 16:16:15,448 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bluetooth.wvr.bpl' [2021-06-10 16:16:15,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 16:16:15,479 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-10 16:16:15,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 16:16:15,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 16:16:15,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 16:16:15,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 04:16:15" (1/1) ... [2021-06-10 16:16:15,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 04:16:15" (1/1) ... [2021-06-10 16:16:15,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 16:16:15,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 16:16:15,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 16:16:15,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 16:16:15,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 04:16:15" (1/1) ... [2021-06-10 16:16:15,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 04:16:15" (1/1) ... [2021-06-10 16:16:15,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 04:16:15" (1/1) ... [2021-06-10 16:16:15,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 04:16:15" (1/1) ... [2021-06-10 16:16:15,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 04:16:15" (1/1) ... [2021-06-10 16:16:15,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 04:16:15" (1/1) ... [2021-06-10 16:16:15,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 04:16:15" (1/1) ... [2021-06-10 16:16:15,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 16:16:15,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 16:16:15,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 16:16:15,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 16:16:15,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 04:16:15" (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 [2021-06-10 16:16:15,590 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-10 16:16:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-10 16:16:15,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-10 16:16:15,592 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-10 16:16:15,592 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-10 16:16:15,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-10 16:16:15,592 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-10 16:16:15,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 16:16:15,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 16:16:15,593 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 16:16:15,811 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 16:16:15,811 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-10 16:16:15,813 INFO L202 PluginConnector]: Adding new model bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 04:16:15 BoogieIcfgContainer [2021-06-10 16:16:15,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 16:16:15,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 16:16:15,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 16:16:15,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 16:16:15,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 04:16:15" (1/2) ... [2021-06-10 16:16:15,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f96d9d9 and model type bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 04:16:15, skipping insertion in model container [2021-06-10 16:16:15,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 04:16:15" (2/2) ... [2021-06-10 16:16:15,834 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth.wvr.bpl [2021-06-10 16:16:15,839 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 16:16:15,842 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 16:16:15,843 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 16:16:15,921 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-10 16:16:15,954 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-10 16:16:15,972 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 16:16:15,973 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 16:16:15,973 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 16:16:15,973 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 16:16:15,973 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 16:16:15,973 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 16:16:15,973 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 16:16:15,973 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 16:16:15,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 76 flow [2021-06-10 16:16:16,018 INFO L129 PetriNetUnfolder]: 2/28 cut-off events. [2021-06-10 16:16:16,018 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-10 16:16:16,021 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. [2021-06-10 16:16:16,021 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 30 transitions, 76 flow [2021-06-10 16:16:16,025 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 26 transitions, 64 flow [2021-06-10 16:16:16,051 INFO L129 PetriNetUnfolder]: 2/25 cut-off events. [2021-06-10 16:16:16,051 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-10 16:16:16,051 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 16:16:16,052 INFO L263 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] [2021-06-10 16:16:16,052 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 16:16:16,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 16:16:16,057 INFO L82 PathProgramCache]: Analyzing trace with hash 797051895, now seen corresponding path program 1 times [2021-06-10 16:16:16,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 16:16:16,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330773189] [2021-06-10 16:16:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 16:16:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 16:16:16,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 16:16:16,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 16:16:16,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 16:16:16,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-06-10 16:16:16,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 16:16:16,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 16:16:16,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 16:16:16,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330773189] [2021-06-10 16:16:16,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 16:16:16,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 16:16:16,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248878869] [2021-06-10 16:16:16,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 16:16:16,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 16:16:16,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 16:16:16,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 16:16:16,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 30 [2021-06-10 16:16:16,269 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) [2021-06-10 16:16:16,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 16:16:16,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 30 [2021-06-10 16:16:16,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 16:16:16,312 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2021-06-10 16:16:16,312 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-10 16:16:16,313 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. [2021-06-10 16:16:16,314 INFO L132 encePairwiseOnDemand]: 26/30 looper letters, 3 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2021-06-10 16:16:16,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 28 transitions, 80 flow [2021-06-10 16:16:16,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 16:16:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 16:16:16,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2021-06-10 16:16:16,326 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-06-10 16:16:16,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 82 transitions. [2021-06-10 16:16:16,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 82 transitions. [2021-06-10 16:16:16,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 16:16:16,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 82 transitions. [2021-06-10 16:16:16,331 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) [2021-06-10 16:16:16,335 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) [2021-06-10 16:16:16,335 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) [2021-06-10 16:16:16,337 INFO L185 Difference]: Start difference. First operand has 31 places, 26 transitions, 64 flow. Second operand 3 states and 82 transitions. [2021-06-10 16:16:16,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 28 transitions, 80 flow [2021-06-10 16:16:16,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 72 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-10 16:16:16,341 INFO L241 Difference]: Finished difference. Result has 30 places, 28 transitions, 75 flow [2021-06-10 16:16:16,342 INFO L326 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} [2021-06-10 16:16:16,343 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2021-06-10 16:16:16,343 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 75 flow [2021-06-10 16:16:16,343 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) [2021-06-10 16:16:16,344 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 16:16:16,344 INFO L263 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] [2021-06-10 16:16:16,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 16:16:16,344 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 16:16:16,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 16:16:16,345 INFO L82 PathProgramCache]: Analyzing trace with hash 409282576, now seen corresponding path program 1 times [2021-06-10 16:16:16,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 16:16:16,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694889891] [2021-06-10 16:16:16,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 16:16:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 16:16:16,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 16:16:16,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 16:16:16,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 16:16:16,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-06-10 16:16:16,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 16:16:16,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 16:16:16,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 16:16:16,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 16:16:16,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 16:16:16,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694889891] [2021-06-10 16:16:16,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 16:16:16,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 16:16:16,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651755060] [2021-06-10 16:16:16,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 16:16:16,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 16:16:16,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 16:16:16,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 16:16:16,378 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 30 [2021-06-10 16:16:16,378 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) [2021-06-10 16:16:16,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 16:16:16,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 30 [2021-06-10 16:16:16,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 16:16:16,411 INFO L129 PetriNetUnfolder]: 5/46 cut-off events. [2021-06-10 16:16:16,411 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 16:16:16,412 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. [2021-06-10 16:16:16,412 INFO L132 encePairwiseOnDemand]: 25/30 looper letters, 1 selfloop transitions, 4 changer transitions 4/29 dead transitions. [2021-06-10 16:16:16,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 89 flow [2021-06-10 16:16:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 16:16:16,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 16:16:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2021-06-10 16:16:16,414 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8466666666666667 [2021-06-10 16:16:16,414 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 127 transitions. [2021-06-10 16:16:16,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 127 transitions. [2021-06-10 16:16:16,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 16:16:16,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 127 transitions. [2021-06-10 16:16:16,416 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) [2021-06-10 16:16:16,417 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) [2021-06-10 16:16:16,417 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) [2021-06-10 16:16:16,417 INFO L185 Difference]: Start difference. First operand has 30 places, 28 transitions, 75 flow. Second operand 5 states and 127 transitions. [2021-06-10 16:16:16,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 89 flow [2021-06-10 16:16:16,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 16:16:16,419 INFO L241 Difference]: Finished difference. Result has 34 places, 25 transitions, 74 flow [2021-06-10 16:16:16,420 INFO L326 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} [2021-06-10 16:16:16,420 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2021-06-10 16:16:16,420 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 74 flow [2021-06-10 16:16:16,421 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) [2021-06-10 16:16:16,421 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 16:16:16,421 INFO L263 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] [2021-06-10 16:16:16,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 16:16:16,421 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 16:16:16,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 16:16:16,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1099733180, now seen corresponding path program 1 times [2021-06-10 16:16:16,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 16:16:16,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910612984] [2021-06-10 16:16:16,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 16:16:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 16:16:16,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 16:16:16,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 16:16:16,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 16:16:16,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 16:16:16,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 16:16:16,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 16:16:16,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 16:16:16,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 16:16:16,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 16:16:16,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910612984] [2021-06-10 16:16:16,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 16:16:16,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 16:16:16,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479959729] [2021-06-10 16:16:16,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 16:16:16,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 16:16:16,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 16:16:16,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 16:16:16,471 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 30 [2021-06-10 16:16:16,471 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) [2021-06-10 16:16:16,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 16:16:16,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 30 [2021-06-10 16:16:16,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 16:16:16,485 INFO L129 PetriNetUnfolder]: 1/23 cut-off events. [2021-06-10 16:16:16,486 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-10 16:16:16,486 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. [2021-06-10 16:16:16,486 INFO L132 encePairwiseOnDemand]: 27/30 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2021-06-10 16:16:16,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 23 transitions, 76 flow [2021-06-10 16:16:16,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 16:16:16,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 16:16:16,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2021-06-10 16:16:16,488 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8416666666666667 [2021-06-10 16:16:16,488 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 101 transitions. [2021-06-10 16:16:16,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 101 transitions. [2021-06-10 16:16:16,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 16:16:16,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 101 transitions. [2021-06-10 16:16:16,490 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) [2021-06-10 16:16:16,490 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) [2021-06-10 16:16:16,491 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) [2021-06-10 16:16:16,491 INFO L185 Difference]: Start difference. First operand has 34 places, 25 transitions, 74 flow. Second operand 4 states and 101 transitions. [2021-06-10 16:16:16,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 23 transitions, 76 flow [2021-06-10 16:16:16,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 56 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-06-10 16:16:16,492 INFO L241 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2021-06-10 16:16:16,492 INFO L326 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} [2021-06-10 16:16:16,493 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2021-06-10 16:16:16,493 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2021-06-10 16:16:16,493 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) [2021-06-10 16:16:16,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 16:16:16,498 INFO L202 PluginConnector]: Adding new model bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 04:16:16 BasicIcfg [2021-06-10 16:16:16,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 16:16:16,499 INFO L168 Benchmark]: Toolchain (without parser) took 1020.04 ms. Allocated memory is still 373.3 MB. Free memory was 352.3 MB in the beginning and 322.4 MB in the end (delta: 29.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.0 GB. [2021-06-10 16:16:16,500 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 373.3 MB. Free memory was 353.4 MB in the beginning and 353.3 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 16:16:16,500 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.10 ms. Allocated memory is still 373.3 MB. Free memory was 352.2 MB in the beginning and 350.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 16:16:16,501 INFO L168 Benchmark]: Boogie Preprocessor took 12.83 ms. Allocated memory is still 373.3 MB. Free memory was 350.8 MB in the beginning and 349.8 MB in the end (delta: 943.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 16:16:16,506 INFO L168 Benchmark]: RCFGBuilder took 297.00 ms. Allocated memory is still 373.3 MB. Free memory was 349.8 MB in the beginning and 338.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-10 16:16:16,506 INFO L168 Benchmark]: TraceAbstraction took 683.49 ms. Allocated memory is still 373.3 MB. Free memory was 338.2 MB in the beginning and 322.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.0 GB. [2021-06-10 16:16:16,509 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 0.15 ms. Allocated memory is still 373.3 MB. Free memory was 353.4 MB in the beginning and 353.3 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.10 ms. Allocated memory is still 373.3 MB. Free memory was 352.2 MB in the beginning and 350.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.83 ms. Allocated memory is still 373.3 MB. Free memory was 350.8 MB in the beginning and 349.8 MB in the end (delta: 943.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 297.00 ms. Allocated memory is still 373.3 MB. Free memory was 349.8 MB in the beginning and 338.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 683.49 ms. Allocated memory is still 373.3 MB. Free memory was 338.2 MB in the beginning and 322.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.6 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 25.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 525.2ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 152.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 51.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 1 SDslu, 4 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.8ms 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: 12.6ms SsaConstructionTime, 38.6ms SatisfiabilityAnalysisTime, 128.1ms 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...