/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 13:16:20,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 13:16:20,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 13:16:20,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 13:16:20,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 13:16:20,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 13:16:20,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 13:16:20,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 13:16:20,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 13:16:20,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 13:16:20,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 13:16:20,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 13:16:20,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 13:16:20,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 13:16:20,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 13:16:20,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 13:16:20,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 13:16:20,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 13:16:20,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 13:16:20,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 13:16:20,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 13:16:20,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 13:16:20,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 13:16:20,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 13:16:20,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-11 13:16:20,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 13:16:20,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 13:16:20,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 13:16:20,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 13:16:20,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 13:16:20,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 13:16:20,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 13:16:20,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 13:16:20,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 13:16:20,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 13:16:20,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 13:16:20,514 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-RepeatedSemanticLbe.epf [2021-06-11 13:16:20,538 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 13:16:20,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 13:16:20,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 13:16:20,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 13:16:20,540 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 13:16:20,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 13:16:20,541 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 13:16:20,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 13:16:20,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 13:16:20,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 13:16:20,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 13:16:20,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 13:16:20,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 13:16:20,542 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 13:16:20,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 13:16:20,542 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 13:16:20,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 13:16:20,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 13:16:20,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 13:16:20,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 13:16:20,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 13:16:20,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 13:16:20,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 13:16:20,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 13:16:20,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 13:16:20,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 13:16:20,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 13:16:20,543 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 13:16:20,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 13:16:20,543 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 13:16:20,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 13:16:20,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 13:16:20,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 13:16:20,825 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-11 13:16:20,825 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-11 13:16:20,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl [2021-06-11 13:16:20,826 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-le-max.wvr.bpl' [2021-06-11 13:16:20,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 13:16:21,029 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-11 13:16:21,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 13:16:21,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 13:16:21,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 13:16:21,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:16:20" (1/1) ... [2021-06-11 13:16:21,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:16:20" (1/1) ... [2021-06-11 13:16:21,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 13:16:21,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 13:16:21,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 13:16:21,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 13:16:21,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:16:20" (1/1) ... [2021-06-11 13:16:21,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:16:20" (1/1) ... [2021-06-11 13:16:21,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:16:20" (1/1) ... [2021-06-11 13:16:21,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:16:20" (1/1) ... [2021-06-11 13:16:21,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:16:20" (1/1) ... [2021-06-11 13:16:21,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:16:20" (1/1) ... [2021-06-11 13:16:21,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:16:20" (1/1) ... [2021-06-11 13:16:21,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 13:16:21,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 13:16:21,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 13:16:21,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 13:16:21,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:16:20" (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 [2021-06-11 13:16:21,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-11 13:16:21,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-11 13:16:21,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-11 13:16:21,112 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-11 13:16:21,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-11 13:16:21,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-11 13:16:21,112 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-11 13:16:21,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 13:16:21,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 13:16:21,112 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-11 13:16:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-11 13:16:21,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-11 13:16:21,113 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 13:16:21,255 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 13:16:21,255 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-11 13:16:21,256 INFO L202 PluginConnector]: Adding new model min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 01:16:21 BoogieIcfgContainer [2021-06-11 13:16:21,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 13:16:21,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 13:16:21,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 13:16:21,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 13:16:21,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:16:20" (1/2) ... [2021-06-11 13:16:21,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48cf0886 and model type min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 01:16:21, skipping insertion in model container [2021-06-11 13:16:21,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 01:16:21" (2/2) ... [2021-06-11 13:16:21,261 INFO L111 eAbstractionObserver]: Analyzing ICFG min-le-max.wvr.bpl [2021-06-11 13:16:21,265 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 13:16:21,267 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 13:16:21,268 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 13:16:21,332 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-11 13:16:21,344 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 13:16:21,358 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 13:16:21,359 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 13:16:21,359 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 13:16:21,359 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 13:16:21,359 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 13:16:21,359 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 13:16:21,359 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 13:16:21,359 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 13:16:21,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 76 flow [2021-06-11 13:16:21,400 INFO L129 PetriNetUnfolder]: 2/23 cut-off events. [2021-06-11 13:16:21,400 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 13:16:21,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 23 events. 2/23 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2021-06-11 13:16:21,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 26 transitions, 76 flow [2021-06-11 13:16:21,407 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 21 transitions, 60 flow [2021-06-11 13:16:21,408 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 13:16:21,421 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 21 transitions, 60 flow [2021-06-11 13:16:21,428 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 21 transitions, 60 flow [2021-06-11 13:16:21,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 21 transitions, 60 flow [2021-06-11 13:16:21,445 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-06-11 13:16:21,445 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 13:16:21,445 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 21 events. 2/21 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2021-06-11 13:16:21,447 INFO L151 LiptonReduction]: Number of co-enabled transitions 138 [2021-06-11 13:16:21,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:21,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:21,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:21,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:21,697 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-06-11 13:16:21,705 INFO L147 QuantifierPusher]: treesize reduction 10, result has 9.1 percent of original size 1 [2021-06-11 13:16:21,734 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-06-11 13:16:21,738 INFO L147 QuantifierPusher]: treesize reduction 10, result has 9.1 percent of original size 1 [2021-06-11 13:16:21,743 INFO L163 LiptonReduction]: Checked pairs total: 90 [2021-06-11 13:16:21,743 INFO L165 LiptonReduction]: Total number of compositions: 8 [2021-06-11 13:16:21,748 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 341 [2021-06-11 13:16:21,767 INFO L129 PetriNetUnfolder]: 2/12 cut-off events. [2021-06-11 13:16:21,768 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 13:16:21,768 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 13:16:21,768 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 13:16:21,768 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 13:16:21,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 13:16:21,773 INFO L82 PathProgramCache]: Analyzing trace with hash -93480264, now seen corresponding path program 1 times [2021-06-11 13:16:21,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 13:16:21,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541406545] [2021-06-11 13:16:21,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 13:16:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 13:16:21,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:21,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 13:16:21,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:21,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:21,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 13:16:21,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541406545] [2021-06-11 13:16:21,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 13:16:21,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 13:16:21,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905926355] [2021-06-11 13:16:21,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 13:16:21,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 13:16:21,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 13:16:21,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 13:16:21,901 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 34 [2021-06-11 13:16:21,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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) [2021-06-11 13:16:21,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 13:16:21,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 34 [2021-06-11 13:16:21,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 13:16:21,948 INFO L129 PetriNetUnfolder]: 11/35 cut-off events. [2021-06-11 13:16:21,949 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-06-11 13:16:21,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 35 events. 11/35 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 0 based on Foata normal form. 2/35 useless extension candidates. Maximal degree in co-relation 49. Up to 12 conditions per place. [2021-06-11 13:16:21,951 INFO L132 encePairwiseOnDemand]: 29/34 looper letters, 4 selfloop transitions, 3 changer transitions 5/20 dead transitions. [2021-06-11 13:16:21,951 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 82 flow [2021-06-11 13:16:21,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 13:16:21,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 13:16:21,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2021-06-11 13:16:21,960 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7294117647058823 [2021-06-11 13:16:21,961 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 124 transitions. [2021-06-11 13:16:21,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 124 transitions. [2021-06-11 13:16:21,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 13:16:21,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 124 transitions. [2021-06-11 13:16:21,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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) [2021-06-11 13:16:21,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 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) [2021-06-11 13:16:21,971 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 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) [2021-06-11 13:16:21,973 INFO L185 Difference]: Start difference. First operand has 21 places, 13 transitions, 44 flow. Second operand 5 states and 124 transitions. [2021-06-11 13:16:21,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 82 flow [2021-06-11 13:16:21,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 20 transitions, 70 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-06-11 13:16:21,977 INFO L241 Difference]: Finished difference. Result has 22 places, 15 transitions, 59 flow [2021-06-11 13:16:21,978 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=59, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2021-06-11 13:16:21,979 INFO L343 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2021-06-11 13:16:21,979 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 13:16:21,979 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 15 transitions, 59 flow [2021-06-11 13:16:21,980 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 15 transitions, 59 flow [2021-06-11 13:16:21,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 15 transitions, 59 flow [2021-06-11 13:16:21,990 INFO L129 PetriNetUnfolder]: 8/25 cut-off events. [2021-06-11 13:16:21,990 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-06-11 13:16:21,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 25 events. 8/25 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 46. Up to 11 conditions per place. [2021-06-11 13:16:21,991 INFO L151 LiptonReduction]: Number of co-enabled transitions 42 [2021-06-11 13:16:21,993 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 13:16:21,994 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 13:16:21,994 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 13:16:21,996 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 15 transitions, 59 flow [2021-06-11 13:16:21,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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) [2021-06-11 13:16:21,996 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 13:16:21,996 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 13:16:21,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 13:16:21,997 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 13:16:21,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 13:16:21,997 INFO L82 PathProgramCache]: Analyzing trace with hash 810777838, now seen corresponding path program 1 times [2021-06-11 13:16:21,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 13:16:21,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475721458] [2021-06-11 13:16:21,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 13:16:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 13:16:22,065 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.0 percent of original size [2021-06-11 13:16:22,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 13:16:22,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:22,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 13:16:22,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475721458] [2021-06-11 13:16:22,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124158078] [2021-06-11 13:16:22,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 13:16:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 13:16:22,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-11 13:16:22,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 13:16:22,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 13:16:22,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 13:16:22,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-11 13:16:22,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 13:16:22,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 13:16:22,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-11 13:16:22,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:16:22,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:22,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:22,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:22,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:22,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:22,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:22,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:22,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:22,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:22,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:16:22,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 13:16:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 13:16:22,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 13:16:22,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-06-11 13:16:22,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628595761] [2021-06-11 13:16:22,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 13:16:22,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 13:16:22,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 13:16:22,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-11 13:16:22,247 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2021-06-11 13:16:22,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 15 transitions, 59 flow. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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) [2021-06-11 13:16:22,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 13:16:22,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2021-06-11 13:16:22,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 13:16:22,338 INFO L129 PetriNetUnfolder]: 25/57 cut-off events. [2021-06-11 13:16:22,338 INFO L130 PetriNetUnfolder]: For 32/40 co-relation queries the response was YES. [2021-06-11 13:16:22,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 57 events. 25/57 cut-off events. For 32/40 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 152 event pairs, 1 based on Foata normal form. 7/62 useless extension candidates. Maximal degree in co-relation 154. Up to 29 conditions per place. [2021-06-11 13:16:22,339 INFO L132 encePairwiseOnDemand]: 28/34 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2021-06-11 13:16:22,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 27 transitions, 147 flow [2021-06-11 13:16:22,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 13:16:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 13:16:22,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2021-06-11 13:16:22,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5168067226890757 [2021-06-11 13:16:22,343 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 123 transitions. [2021-06-11 13:16:22,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 123 transitions. [2021-06-11 13:16:22,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 13:16:22,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 123 transitions. [2021-06-11 13:16:22,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 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) [2021-06-11 13:16:22,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 34.0) internal successors, (272), 8 states have internal predecessors, (272), 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) [2021-06-11 13:16:22,346 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 34.0) internal successors, (272), 8 states have internal predecessors, (272), 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) [2021-06-11 13:16:22,346 INFO L185 Difference]: Start difference. First operand has 20 places, 15 transitions, 59 flow. Second operand 7 states and 123 transitions. [2021-06-11 13:16:22,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 27 transitions, 147 flow [2021-06-11 13:16:22,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 27 transitions, 128 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-06-11 13:16:22,349 INFO L241 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2021-06-11 13:16:22,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2021-06-11 13:16:22,349 INFO L343 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places. [2021-06-11 13:16:22,349 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 13:16:22,350 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 0 transitions, 0 flow [2021-06-11 13:16:22,351 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 0 transitions, 0 flow [2021-06-11 13:16:22,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 13:16:22,352 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 13:16:22,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 13:16:22,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 13:16:22,352 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 13:16:22,352 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 13:16:22,355 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 13:16:22,355 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 13:16:22,358 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 13:16:22,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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) [2021-06-11 13:16:22,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-06-11 13:16:22,567 INFO L202 PluginConnector]: Adding new model min-le-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 01:16:22 BasicIcfg [2021-06-11 13:16:22,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 13:16:22,568 INFO L168 Benchmark]: Toolchain (without parser) took 1704.26 ms. Allocated memory is still 398.5 MB. Free memory was 377.8 MB in the beginning and 348.2 MB in the end (delta: 29.6 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.0 GB. [2021-06-11 13:16:22,568 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 398.5 MB. Free memory was 379.0 MB in the beginning and 378.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 13:16:22,569 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.59 ms. Allocated memory is still 398.5 MB. Free memory was 377.8 MB in the beginning and 376.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 13:16:22,569 INFO L168 Benchmark]: Boogie Preprocessor took 11.17 ms. Allocated memory is still 398.5 MB. Free memory was 376.3 MB in the beginning and 375.3 MB in the end (delta: 991.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 13:16:22,569 INFO L168 Benchmark]: RCFGBuilder took 188.86 ms. Allocated memory is still 398.5 MB. Free memory was 375.2 MB in the beginning and 364.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-11 13:16:22,569 INFO L168 Benchmark]: TraceAbstraction took 1310.17 ms. Allocated memory is still 398.5 MB. Free memory was 363.7 MB in the beginning and 348.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.0 GB. [2021-06-11 13:16:22,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 398.5 MB. Free memory was 379.0 MB in the beginning and 378.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.59 ms. Allocated memory is still 398.5 MB. Free memory was 377.8 MB in the beginning and 376.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.17 ms. Allocated memory is still 398.5 MB. Free memory was 376.3 MB in the beginning and 375.3 MB in the end (delta: 991.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 188.86 ms. Allocated memory is still 398.5 MB. Free memory was 375.2 MB in the beginning and 364.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1310.17 ms. Allocated memory is still 398.5 MB. Free memory was 363.7 MB in the beginning and 348.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 314.8ms, 29 PlacesBefore, 21 PlacesAfterwards, 21 TransitionsBefore, 13 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 77, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 70, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 70, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 70, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 77, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 70, unknown conditional: 0, unknown unconditional: 70] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 97, Positive conditional cache size: 0, Positive unconditional cache size: 97, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.9ms, 22 PlacesBefore, 20 PlacesAfterwards, 15 TransitionsBefore, 15 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 97, Positive conditional cache size: 0, Positive unconditional cache size: 97, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6ms, 23 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 97, Positive conditional cache size: 0, Positive unconditional cache size: 97, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - PositiveResult [Line: 52]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1210.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 186.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 402.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5 SDtfs, 13 SDslu, 3 SDs, 0 SdLazy, 66 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 41.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 72.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred 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: 11.2ms SsaConstructionTime, 64.4ms SatisfiabilityAnalysisTime, 203.7ms InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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...