/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 09:55:55,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 09:55:55,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 09:55:55,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 09:55:55,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 09:55:55,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 09:55:55,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 09:55:55,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 09:55:55,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 09:55:55,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 09:55:55,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 09:55:55,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 09:55:55,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 09:55:55,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 09:55:55,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 09:55:55,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 09:55:55,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 09:55:55,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 09:55:55,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 09:55:55,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 09:55:55,460 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 [2021-07-01 09:55:55,474 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 09:55:55,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 09:55:55,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 09:55:55,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 09:55:55,475 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 09:55:55,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 09:55:55,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 09:55:55,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 09:55:55,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 09:55:55,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 09:55:55,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 09:55:55,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 09:55:55,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 09:55:55,476 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 09:55:55,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 09:55:55,476 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 09:55:55,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 09:55:55,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 09:55:55,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 09:55:55,477 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 09:55:55,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 09:55:55,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 09:55:55,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 09:55:55,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 09:55:55,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 09:55:55,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 09:55:55,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 09:55:55,478 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 09:55:55,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-07-01 09:55:55,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 09:55:55,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 09:55:55,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 09:55:55,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 09:55:55,754 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 09:55:55,755 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 09:55:55,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized03.bpl [2021-07-01 09:55:55,756 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized03.bpl' [2021-07-01 09:55:55,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 09:55:55,779 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 09:55:55,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 09:55:55,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 09:55:55,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 09:55:55,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:55" (1/1) ... [2021-07-01 09:55:55,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:55" (1/1) ... [2021-07-01 09:55:55,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 09:55:55,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 09:55:55,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 09:55:55,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 09:55:55,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:55" (1/1) ... [2021-07-01 09:55:55,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:55" (1/1) ... [2021-07-01 09:55:55,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:55" (1/1) ... [2021-07-01 09:55:55,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:55" (1/1) ... [2021-07-01 09:55:55,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:55" (1/1) ... [2021-07-01 09:55:55,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:55" (1/1) ... [2021-07-01 09:55:55,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:55" (1/1) ... [2021-07-01 09:55:55,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 09:55:55,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 09:55:55,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 09:55:55,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 09:55:55,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 09:55:55,861 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 09:55:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 09:55:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 09:55:55,861 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 09:55:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 09:55:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 09:55:55,861 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 09:55:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 09:55:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 09:55:55,862 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 09:55:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 09:55:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 09:55:55,862 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 09:55:55,994 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 09:55:55,994 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 09:55:55,995 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-01 09:55:55,995 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 09:55:55,996 INFO L202 PluginConnector]: Adding new model bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 09:55:55 BoogieIcfgContainer [2021-07-01 09:55:55,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 09:55:55,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 09:55:55,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 09:55:55,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 09:55:55,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:55" (1/2) ... [2021-07-01 09:55:56,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee2dbd2 and model type bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 09:55:56, skipping insertion in model container [2021-07-01 09:55:56,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 09:55:55" (2/2) ... [2021-07-01 09:55:56,001 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-customized03.bpl [2021-07-01 09:55:56,004 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 09:55:56,004 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 09:55:56,005 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 09:55:56,050 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 09:55:56,068 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-01 09:55:56,083 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 09:55:56,083 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 09:55:56,083 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 09:55:56,083 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 09:55:56,083 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 09:55:56,083 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 09:55:56,083 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 09:55:56,083 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 09:55:56,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 78 flow [2021-07-01 09:55:56,101 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2021-07-01 09:55:56,101 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:55:56,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 3/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 44 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2021-07-01 09:55:56,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 29 transitions, 78 flow [2021-07-01 09:55:56,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-07-01 09:55:56,105 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-07-01 09:55:56,105 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:55:56,106 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 09:55:56,107 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-01 09:55:56,109 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 09:55:56,109 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 09:55:56,109 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 09:55:56,109 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 09:55:56,109 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 09:55:56,109 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 09:55:56,109 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 09:55:56,110 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 09:55:56,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 78 flow [2021-07-01 09:55:56,116 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2021-07-01 09:55:56,116 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:55:56,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 3/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 44 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2021-07-01 09:55:56,117 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 29 transitions, 78 flow [2021-07-01 09:55:56,118 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 25 transitions, 62 flow [2021-07-01 09:55:56,121 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-07-01 09:55:56,121 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:55:56,121 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:55:56,121 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:55:56,122 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:55:56,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:55:56,125 INFO L82 PathProgramCache]: Analyzing trace with hash 377310302, now seen corresponding path program 1 times [2021-07-01 09:55:56,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:55:56,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247101387] [2021-07-01 09:55:56,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:55:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:55:56,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:55:56,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:55:56,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247101387] [2021-07-01 09:55:56,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247101387] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:55:56,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:55:56,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 09:55:56,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873650466] [2021-07-01 09:55:56,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-01 09:55:56,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:55:56,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-01 09:55:56,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-01 09:55:56,268 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 29 [2021-07-01 09:55:56,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:55:56,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 29 [2021-07-01 09:55:56,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:55:56,369 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([94] L68-2-->L57: Formula: (and (= v_pendingIo_26 (+ v_pendingIo_27 1)) (not v_stoppingFlag_7)) InVars {pendingIo=v_pendingIo_27, stoppingFlag=v_stoppingFlag_7} OutVars{pendingIo=v_pendingIo_26, stoppingFlag=v_stoppingFlag_7} AuxVars[] AssignedVars[pendingIo][24], [17#ULTIMATE.startFINALtrue, 18#L68-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, 20#L57true, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork2InUse, 7#L91-2true, 9#L68-2true, DeviceThreadThread1of1ForFork3InUse, 42#true]) [2021-07-01 09:55:56,369 INFO L384 tUnfolder$Statistics]: this new event has 13 ancestors and is cut-off event [2021-07-01 09:55:56,369 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-07-01 09:55:56,369 INFO L387 tUnfolder$Statistics]: existing Event has 11 ancestors and is cut-off event [2021-07-01 09:55:56,370 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,429 INFO L129 PetriNetUnfolder]: 267/467 cut-off events. [2021-07-01 09:55:56,429 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:55:56,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 467 events. 267/467 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1960 event pairs, 37 based on Foata normal form. 0/453 useless extension candidates. Maximal degree in co-relation 841. Up to 223 conditions per place. [2021-07-01 09:55:56,435 INFO L132 encePairwiseOnDemand]: 19/29 looper letters, 13 selfloop transitions, 13 changer transitions 0/41 dead transitions. [2021-07-01 09:55:56,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 146 flow [2021-07-01 09:55:56,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-01 09:55:56,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-07-01 09:55:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2021-07-01 09:55:56,442 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.896551724137931 [2021-07-01 09:55:56,442 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 104 transitions. [2021-07-01 09:55:56,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 104 transitions. [2021-07-01 09:55:56,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:55:56,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 104 transitions. [2021-07-01 09:55:56,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,448 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,449 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 62 flow. Second operand 4 states and 104 transitions. [2021-07-01 09:55:56,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 146 flow [2021-07-01 09:55:56,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 142 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-07-01 09:55:56,453 INFO L241 Difference]: Finished difference. Result has 37 places, 37 transitions, 154 flow [2021-07-01 09:55:56,454 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=37, PETRI_TRANSITIONS=37} [2021-07-01 09:55:56,455 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2021-07-01 09:55:56,455 INFO L482 AbstractCegarLoop]: Abstraction has has 37 places, 37 transitions, 154 flow [2021-07-01 09:55:56,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,455 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:55:56,455 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:55:56,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 09:55:56,456 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:55:56,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:55:56,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1810905981, now seen corresponding path program 1 times [2021-07-01 09:55:56,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:55:56,462 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85271654] [2021-07-01 09:55:56,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:55:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:55:56,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 09:55:56,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 09:55:56,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 09:55:56,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:55:56,483 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:55:56,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85271654] [2021-07-01 09:55:56,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85271654] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:55:56,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:55:56,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 09:55:56,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46990902] [2021-07-01 09:55:56,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 09:55:56,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:55:56,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 09:55:56,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 09:55:56,488 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 29 [2021-07-01 09:55:56,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 37 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:55:56,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 29 [2021-07-01 09:55:56,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:55:56,557 INFO L129 PetriNetUnfolder]: 161/381 cut-off events. [2021-07-01 09:55:56,558 INFO L130 PetriNetUnfolder]: For 272/293 co-relation queries the response was YES. [2021-07-01 09:55:56,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 891 conditions, 381 events. 161/381 cut-off events. For 272/293 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1839 event pairs, 11 based on Foata normal form. 124/494 useless extension candidates. Maximal degree in co-relation 876. Up to 153 conditions per place. [2021-07-01 09:55:56,560 INFO L132 encePairwiseOnDemand]: 25/29 looper letters, 7 selfloop transitions, 1 changer transitions 0/37 dead transitions. [2021-07-01 09:55:56,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 37 transitions, 170 flow [2021-07-01 09:55:56,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 09:55:56,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-07-01 09:55:56,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2021-07-01 09:55:56,562 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9195402298850575 [2021-07-01 09:55:56,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 80 transitions. [2021-07-01 09:55:56,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 80 transitions. [2021-07-01 09:55:56,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:55:56,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 80 transitions. [2021-07-01 09:55:56,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,563 INFO L185 Difference]: Start difference. First operand has 37 places, 37 transitions, 154 flow. Second operand 3 states and 80 transitions. [2021-07-01 09:55:56,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 37 transitions, 170 flow [2021-07-01 09:55:56,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 37 transitions, 170 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-07-01 09:55:56,566 INFO L241 Difference]: Finished difference. Result has 40 places, 37 transitions, 169 flow [2021-07-01 09:55:56,566 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=40, PETRI_TRANSITIONS=37} [2021-07-01 09:55:56,567 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2021-07-01 09:55:56,567 INFO L482 AbstractCegarLoop]: Abstraction has has 40 places, 37 transitions, 169 flow [2021-07-01 09:55:56,567 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,567 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:55:56,567 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:55:56,567 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 09:55:56,567 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:55:56,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:55:56,568 INFO L82 PathProgramCache]: Analyzing trace with hash -437029980, now seen corresponding path program 1 times [2021-07-01 09:55:56,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:55:56,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745808257] [2021-07-01 09:55:56,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:55:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:55:56,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:55:56,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:55:56,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745808257] [2021-07-01 09:55:56,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745808257] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:55:56,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:55:56,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 09:55:56,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765249335] [2021-07-01 09:55:56,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 09:55:56,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:55:56,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 09:55:56,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-01 09:55:56,600 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 29 [2021-07-01 09:55:56,600 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 37 transitions, 169 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2021-07-01 09:55:56,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:55:56,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 29 [2021-07-01 09:55:56,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:55:56,710 INFO L129 PetriNetUnfolder]: 316/688 cut-off events. [2021-07-01 09:55:56,711 INFO L130 PetriNetUnfolder]: For 402/426 co-relation queries the response was YES. [2021-07-01 09:55:56,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 688 events. 316/688 cut-off events. For 402/426 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3402 event pairs, 23 based on Foata normal form. 24/711 useless extension candidates. Maximal degree in co-relation 2009. Up to 242 conditions per place. [2021-07-01 09:55:56,717 INFO L132 encePairwiseOnDemand]: 19/29 looper letters, 19 selfloop transitions, 45 changer transitions 1/80 dead transitions. [2021-07-01 09:55:56,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 80 transitions, 539 flow [2021-07-01 09:55:56,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 09:55:56,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-07-01 09:55:56,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2021-07-01 09:55:56,721 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9103448275862069 [2021-07-01 09:55:56,721 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 132 transitions. [2021-07-01 09:55:56,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 132 transitions. [2021-07-01 09:55:56,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:55:56,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 132 transitions. [2021-07-01 09:55:56,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,725 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,725 INFO L185 Difference]: Start difference. First operand has 40 places, 37 transitions, 169 flow. Second operand 5 states and 132 transitions. [2021-07-01 09:55:56,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 80 transitions, 539 flow [2021-07-01 09:55:56,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 80 transitions, 538 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-07-01 09:55:56,733 INFO L241 Difference]: Finished difference. Result has 47 places, 72 transitions, 576 flow [2021-07-01 09:55:56,733 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=576, PETRI_PLACES=47, PETRI_TRANSITIONS=72} [2021-07-01 09:55:56,733 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 12 predicate places. [2021-07-01 09:55:56,733 INFO L482 AbstractCegarLoop]: Abstraction has has 47 places, 72 transitions, 576 flow [2021-07-01 09:55:56,734 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2021-07-01 09:55:56,734 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:55:56,734 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:55:56,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 09:55:56,734 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:55:56,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:55:56,735 INFO L82 PathProgramCache]: Analyzing trace with hash -257039615, now seen corresponding path program 1 times [2021-07-01 09:55:56,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:55:56,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144013476] [2021-07-01 09:55:56,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:55:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:55:56,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:55:56,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:55:56,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144013476] [2021-07-01 09:55:56,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144013476] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:55:56,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:55:56,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 09:55:56,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643894254] [2021-07-01 09:55:56,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 09:55:56,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:55:56,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 09:55:56,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-07-01 09:55:56,796 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 29 [2021-07-01 09:55:56,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 72 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:55:56,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 29 [2021-07-01 09:55:56,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:55:56,897 INFO L129 PetriNetUnfolder]: 296/663 cut-off events. [2021-07-01 09:55:56,898 INFO L130 PetriNetUnfolder]: For 1059/1107 co-relation queries the response was YES. [2021-07-01 09:55:56,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2701 conditions, 663 events. 296/663 cut-off events. For 1059/1107 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3303 event pairs, 6 based on Foata normal form. 34/696 useless extension candidates. Maximal degree in co-relation 2679. Up to 226 conditions per place. [2021-07-01 09:55:56,900 INFO L132 encePairwiseOnDemand]: 20/29 looper letters, 0 selfloop transitions, 0 changer transitions 156/156 dead transitions. [2021-07-01 09:55:56,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 156 transitions, 1618 flow [2021-07-01 09:55:56,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 09:55:56,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-07-01 09:55:56,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2021-07-01 09:55:56,904 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8505747126436781 [2021-07-01 09:55:56,904 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 148 transitions. [2021-07-01 09:55:56,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 148 transitions. [2021-07-01 09:55:56,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:55:56,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 148 transitions. [2021-07-01 09:55:56,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 29.0) internal successors, (203), 7 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,907 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 29.0) internal successors, (203), 7 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,907 INFO L185 Difference]: Start difference. First operand has 47 places, 72 transitions, 576 flow. Second operand 6 states and 148 transitions. [2021-07-01 09:55:56,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 156 transitions, 1618 flow [2021-07-01 09:55:56,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 156 transitions, 1515 flow, removed 16 selfloop flow, removed 2 redundant places. [2021-07-01 09:55:56,913 INFO L241 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2021-07-01 09:55:56,914 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2021-07-01 09:55:56,914 INFO L335 CegarLoopForPetriNet]: 35 programPoint places, 14 predicate places. [2021-07-01 09:55:56,914 INFO L482 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2021-07-01 09:55:56,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:55:56,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 09:55:56,914 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-07-01 09:55:56,915 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 09:55:56,917 INFO L202 PluginConnector]: Adding new model bluetooth-customized03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 09:55:56 BasicIcfg [2021-07-01 09:55:56,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 09:55:56,919 INFO L168 Benchmark]: Toolchain (without parser) took 1139.29 ms. Allocated memory is still 211.8 MB. Free memory was 191.8 MB in the beginning and 144.7 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.7 MB. Max. memory is 8.0 GB. [2021-07-01 09:55:56,919 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.78 ms. Allocated memory is still 211.8 MB. Free memory is still 192.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 09:55:56,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.76 ms. Allocated memory is still 211.8 MB. Free memory was 191.7 MB in the beginning and 189.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 09:55:56,922 INFO L168 Benchmark]: Boogie Preprocessor took 11.33 ms. Allocated memory is still 211.8 MB. Free memory was 189.9 MB in the beginning and 189.0 MB in the end (delta: 931.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 09:55:56,923 INFO L168 Benchmark]: RCFGBuilder took 178.35 ms. Allocated memory is still 211.8 MB. Free memory was 188.9 MB in the beginning and 174.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-01 09:55:56,923 INFO L168 Benchmark]: TraceAbstraction took 920.07 ms. Allocated memory is still 211.8 MB. Free memory was 174.4 MB in the beginning and 144.7 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. [2021-07-01 09:55:56,927 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 0.78 ms. Allocated memory is still 211.8 MB. Free memory is still 192.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.76 ms. Allocated memory is still 211.8 MB. Free memory was 191.7 MB in the beginning and 189.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.33 ms. Allocated memory is still 211.8 MB. Free memory was 189.9 MB in the beginning and 189.0 MB in the end (delta: 931.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 178.35 ms. Allocated memory is still 211.8 MB. Free memory was 188.9 MB in the beginning and 174.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 920.07 ms. Allocated memory is still 211.8 MB. Free memory was 174.4 MB in the beginning and 144.7 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 36]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 8 procedures, 45 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 25.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 8 procedures, 45 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 805.9ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 523.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11 SDtfs, 12 SDslu, 0 SDs, 0 SdLazy, 124 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 96.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 57.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=576occurred in iteration=3, InterpolantAutomatonStates: 18, 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: 6.5ms SsaConstructionTime, 38.4ms SatisfiabilityAnalysisTime, 140.8ms InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...