/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 05:13:50,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 05:13:50,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 05:13:51,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 05:13:51,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 05:13:51,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 05:13:51,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 05:13:51,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 05:13:51,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 05:13:51,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 05:13:51,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 05:13:51,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 05:13:51,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 05:13:51,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 05:13:51,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 05:13:51,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 05:13:51,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 05:13:51,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 05:13:51,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 05:13:51,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 05:13:51,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 05:13:51,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 05:13:51,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 05:13:51,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 05:13:51,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 05:13:51,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 05:13:51,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 05:13:51,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 05:13:51,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 05:13:51,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 05:13:51,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 05:13:51,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 05:13:51,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 05:13:51,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 05:13:51,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 05:13:51,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 05:13:51,098 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 05:13:51,125 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 05:13:51,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 05:13:51,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 05:13:51,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 05:13:51,127 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 05:13:51,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 05:13:51,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 05:13:51,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 05:13:51,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 05:13:51,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 05:13:51,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 05:13:51,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 05:13:51,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 05:13:51,129 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 05:13:51,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 05:13:51,130 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 05:13:51,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 05:13:51,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 05:13:51,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 05:13:51,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 05:13:51,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 05:13:51,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 05:13:51,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 05:13:51,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 05:13:51,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 05:13:51,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 05:13:51,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 05:13:51,132 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 05:13:51,133 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 05:13:51,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 05:13:51,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 05:13:51,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 05:13:51,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 05:13:51,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 05:13:51,530 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 05:13:51,531 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 05:13:51,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-subst.wvr.bpl [2021-04-29 05:13:51,533 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-subst.wvr.bpl' [2021-04-29 05:13:51,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 05:13:51,627 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 05:13:51,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 05:13:51,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 05:13:51,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 05:13:51,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:13:51" (1/1) ... [2021-04-29 05:13:51,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:13:51" (1/1) ... [2021-04-29 05:13:51,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 05:13:51,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 05:13:51,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 05:13:51,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 05:13:51,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:13:51" (1/1) ... [2021-04-29 05:13:51,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:13:51" (1/1) ... [2021-04-29 05:13:51,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:13:51" (1/1) ... [2021-04-29 05:13:51,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:13:51" (1/1) ... [2021-04-29 05:13:51,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:13:51" (1/1) ... [2021-04-29 05:13:51,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:13:51" (1/1) ... [2021-04-29 05:13:51,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:13:51" (1/1) ... [2021-04-29 05:13:51,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 05:13:51,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 05:13:51,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 05:13:51,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 05:13:51,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:13:51" (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 [2021-04-29 05:13:51,823 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-04-29 05:13:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 05:13:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 05:13:51,824 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-04-29 05:13:51,824 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-29 05:13:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-29 05:13:51,824 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 05:13:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 05:13:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 05:13:51,825 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-04-29 05:13:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-04-29 05:13:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-04-29 05:13:51,826 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 05:13:52,195 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 05:13:52,198 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 05:13:52,207 INFO L202 PluginConnector]: Adding new model node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:13:52 BoogieIcfgContainer [2021-04-29 05:13:52,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 05:13:52,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 05:13:52,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 05:13:52,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 05:13:52,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:13:51" (1/2) ... [2021-04-29 05:13:52,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a02e940 and model type node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 05:13:52, skipping insertion in model container [2021-04-29 05:13:52,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:13:52" (2/2) ... [2021-04-29 05:13:52,227 INFO L111 eAbstractionObserver]: Analyzing ICFG node-subst.wvr.bpl [2021-04-29 05:13:52,242 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 05:13:52,249 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 05:13:52,254 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 05:13:52,305 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-04-29 05:13:52,329 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 05:13:52,358 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 05:13:52,358 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 05:13:52,358 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 05:13:52,359 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 05:13:52,359 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 05:13:52,359 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 05:13:52,359 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 05:13:52,359 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 05:13:52,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2021-04-29 05:13:52,429 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-04-29 05:13:52,429 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 05:13:52,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:13:52,432 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 19 transitions, 62 flow [2021-04-29 05:13:52,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 14 transitions, 46 flow [2021-04-29 05:13:52,444 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:13:52,468 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 14 transitions, 46 flow [2021-04-29 05:13:52,474 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 14 transitions, 46 flow [2021-04-29 05:13:52,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 14 transitions, 46 flow [2021-04-29 05:13:52,492 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-04-29 05:13:52,492 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 05:13:52,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 14 events. 0/14 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:13:52,498 INFO L146 LiptonReduction]: Number of co-enabled transitions 48 [2021-04-29 05:13:52,926 INFO L158 LiptonReduction]: Checked pairs total: 18 [2021-04-29 05:13:52,926 INFO L160 LiptonReduction]: Total number of compositions: 4 [2021-04-29 05:13:52,932 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 490 [2021-04-29 05:13:52,957 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-04-29 05:13:52,958 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 05:13:52,958 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:13:52,959 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:13:52,959 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:13:52,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:13:52,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1199673895, now seen corresponding path program 1 times [2021-04-29 05:13:52,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:13:52,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036051773] [2021-04-29 05:13:52,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:13:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:13:53,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:13:53,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:13:53,581 INFO L142 QuantifierPusher]: treesize reduction 226, result has 46.2 percent of original size [2021-04-29 05:13:53,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-04-29 05:13:53,752 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 32 [2021-04-29 05:13:53,774 INFO L142 QuantifierPusher]: treesize reduction 272, result has 54.8 percent of original size [2021-04-29 05:13:53,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-04-29 05:13:53,973 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2021-04-29 05:13:53,987 INFO L142 QuantifierPusher]: treesize reduction 73, result has 64.9 percent of original size [2021-04-29 05:13:53,992 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.1 percent of original size 127 [2021-04-29 05:13:54,122 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 24 [2021-04-29 05:13:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:13:54,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036051773] [2021-04-29 05:13:54,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:13:54,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:13:54,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979765680] [2021-04-29 05:13:54,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:13:54,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:13:54,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:13:54,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:13:54,157 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-04-29 05:13:54,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 46 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:13:54,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:13:54,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-04-29 05:13:54,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:13:54,435 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-29 05:13:54,479 INFO L129 PetriNetUnfolder]: 16/86 cut-off events. [2021-04-29 05:13:54,479 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-04-29 05:13:54,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 86 events. 16/86 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 454 event pairs, 4 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 152. Up to 32 conditions per place. [2021-04-29 05:13:54,483 INFO L132 encePairwiseOnDemand]: 15/23 looper letters, 5 selfloop transitions, 2 changer transitions 9/22 dead transitions. [2021-04-29 05:13:54,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 22 transitions, 94 flow [2021-04-29 05:13:54,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:13:54,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:13:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 88 transitions. [2021-04-29 05:13:54,497 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7652173913043478 [2021-04-29 05:13:54,498 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 88 transitions. [2021-04-29 05:13:54,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 88 transitions. [2021-04-29 05:13:54,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:13:54,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 88 transitions. [2021-04-29 05:13:54,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2021-04-29 05:13:54,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:13:54,510 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:13:54,513 INFO L185 Difference]: Start difference. First operand has 24 places, 14 transitions, 46 flow. Second operand 5 states and 88 transitions. [2021-04-29 05:13:54,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 22 transitions, 94 flow [2021-04-29 05:13:54,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 82 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-04-29 05:13:54,520 INFO L241 Difference]: Finished difference. Result has 25 places, 11 transitions, 41 flow [2021-04-29 05:13:54,522 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=41, PETRI_PLACES=25, PETRI_TRANSITIONS=11} [2021-04-29 05:13:54,523 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2021-04-29 05:13:54,523 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:13:54,524 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 11 transitions, 41 flow [2021-04-29 05:13:54,524 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 11 transitions, 41 flow [2021-04-29 05:13:54,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 11 transitions, 41 flow [2021-04-29 05:13:54,530 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-04-29 05:13:54,530 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 05:13:54,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 18 events. 0/18 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 05:13:54,531 INFO L146 LiptonReduction]: Number of co-enabled transitions 16 [2021-04-29 05:13:54,532 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:13:54,533 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:13:54,533 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-04-29 05:13:54,534 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 41 flow [2021-04-29 05:13:54,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:13:54,535 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:13:54,535 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:13:54,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 05:13:54,536 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:13:54,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:13:54,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1445140561, now seen corresponding path program 2 times [2021-04-29 05:13:54,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:13:54,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559611548] [2021-04-29 05:13:54,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:13:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:13:54,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:13:54,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:13:54,749 INFO L142 QuantifierPusher]: treesize reduction 331, result has 41.7 percent of original size [2021-04-29 05:13:54,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 237 [2021-04-29 05:13:54,930 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2021-04-29 05:13:54,951 INFO L142 QuantifierPusher]: treesize reduction 863, result has 42.4 percent of original size [2021-04-29 05:13:54,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 635 [2021-04-29 05:13:55,225 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 54 [2021-04-29 05:13:55,248 INFO L142 QuantifierPusher]: treesize reduction 764, result has 26.0 percent of original size [2021-04-29 05:13:55,255 INFO L147 QuantifierPusher]: treesize reduction 45, result has 83.3 percent of original size 224 [2021-04-29 05:13:55,467 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2021-04-29 05:13:55,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:13:55,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559611548] [2021-04-29 05:13:55,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:13:55,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:13:55,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717539851] [2021-04-29 05:13:55,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:13:55,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:13:55,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:13:55,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:13:55,474 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-04-29 05:13:55,475 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 11 transitions, 41 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:13:55,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:13:55,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-04-29 05:13:55,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:13:55,680 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 05:13:55,973 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 05:13:55,991 INFO L129 PetriNetUnfolder]: 2/29 cut-off events. [2021-04-29 05:13:55,992 INFO L130 PetriNetUnfolder]: For 24/26 co-relation queries the response was YES. [2021-04-29 05:13:55,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 29 events. 2/29 cut-off events. For 24/26 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 86 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 58. Up to 7 conditions per place. [2021-04-29 05:13:55,993 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 5 selfloop transitions, 2 changer transitions 3/16 dead transitions. [2021-04-29 05:13:55,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 16 transitions, 85 flow [2021-04-29 05:13:55,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:13:55,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:13:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-04-29 05:13:55,999 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6869565217391305 [2021-04-29 05:13:55,999 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-04-29 05:13:55,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-04-29 05:13:56,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:13:56,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-04-29 05:13:56,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 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) [2021-04-29 05:13:56,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:13:56,007 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:13:56,007 INFO L185 Difference]: Start difference. First operand has 20 places, 11 transitions, 41 flow. Second operand 5 states and 79 transitions. [2021-04-29 05:13:56,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 16 transitions, 85 flow [2021-04-29 05:13:56,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 78 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-04-29 05:13:56,010 INFO L241 Difference]: Finished difference. Result has 25 places, 11 transitions, 51 flow [2021-04-29 05:13:56,010 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=51, PETRI_PLACES=25, PETRI_TRANSITIONS=11} [2021-04-29 05:13:56,013 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2021-04-29 05:13:56,013 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:13:56,014 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 11 transitions, 51 flow [2021-04-29 05:13:56,014 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 11 transitions, 51 flow [2021-04-29 05:13:56,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 11 transitions, 51 flow [2021-04-29 05:13:56,025 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-04-29 05:13:56,026 INFO L130 PetriNetUnfolder]: For 13/14 co-relation queries the response was YES. [2021-04-29 05:13:56,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 17 events. 0/17 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 05:13:56,027 INFO L146 LiptonReduction]: Number of co-enabled transitions 14 [2021-04-29 05:13:56,028 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:13:56,029 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:13:56,029 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-29 05:13:56,033 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 11 transitions, 51 flow [2021-04-29 05:13:56,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:13:56,033 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:13:56,033 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:13:56,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 05:13:56,034 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:13:56,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:13:56,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1242996719, now seen corresponding path program 3 times [2021-04-29 05:13:56,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:13:56,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248964215] [2021-04-29 05:13:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:13:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:13:56,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:13:56,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:13:56,230 INFO L142 QuantifierPusher]: treesize reduction 37, result has 56.5 percent of original size [2021-04-29 05:13:56,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-29 05:13:56,266 INFO L142 QuantifierPusher]: treesize reduction 197, result has 58.4 percent of original size [2021-04-29 05:13:56,270 INFO L147 QuantifierPusher]: treesize reduction 24, result has 91.3 percent of original size 253 [2021-04-29 05:13:56,415 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2021-04-29 05:13:56,426 INFO L142 QuantifierPusher]: treesize reduction 216, result has 32.3 percent of original size [2021-04-29 05:13:56,429 INFO L147 QuantifierPusher]: treesize reduction 15, result has 85.4 percent of original size 88 [2021-04-29 05:13:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:13:56,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248964215] [2021-04-29 05:13:56,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:13:56,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:13:56,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979989326] [2021-04-29 05:13:56,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:13:56,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:13:56,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:13:56,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:13:56,523 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-04-29 05:13:56,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 11 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:13:56,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:13:56,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-04-29 05:13:56,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:13:56,750 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 05:13:56,766 INFO L129 PetriNetUnfolder]: 1/23 cut-off events. [2021-04-29 05:13:56,766 INFO L130 PetriNetUnfolder]: For 45/49 co-relation queries the response was YES. [2021-04-29 05:13:56,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 23 events. 1/23 cut-off events. For 45/49 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 1 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 56. Up to 5 conditions per place. [2021-04-29 05:13:56,767 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 5 selfloop transitions, 3 changer transitions 1/15 dead transitions. [2021-04-29 05:13:56,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 15 transitions, 93 flow [2021-04-29 05:13:56,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:13:56,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:13:56,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-04-29 05:13:56,769 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6869565217391305 [2021-04-29 05:13:56,769 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-04-29 05:13:56,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-04-29 05:13:56,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:13:56,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-04-29 05:13:56,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 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) [2021-04-29 05:13:56,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:13:56,773 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:13:56,773 INFO L185 Difference]: Start difference. First operand has 24 places, 11 transitions, 51 flow. Second operand 5 states and 79 transitions. [2021-04-29 05:13:56,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 15 transitions, 93 flow [2021-04-29 05:13:56,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 15 transitions, 74 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-04-29 05:13:56,775 INFO L241 Difference]: Finished difference. Result has 27 places, 12 transitions, 62 flow [2021-04-29 05:13:56,776 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=62, PETRI_PLACES=27, PETRI_TRANSITIONS=12} [2021-04-29 05:13:56,776 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2021-04-29 05:13:56,776 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:13:56,776 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 12 transitions, 62 flow [2021-04-29 05:13:56,777 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 12 transitions, 62 flow [2021-04-29 05:13:56,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 12 transitions, 62 flow [2021-04-29 05:13:56,782 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-04-29 05:13:56,782 INFO L130 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2021-04-29 05:13:56,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 18 events. 0/18 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 29 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 05:13:56,783 INFO L146 LiptonReduction]: Number of co-enabled transitions 14 [2021-04-29 05:13:56,784 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:13:56,785 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:13:56,785 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-04-29 05:13:56,786 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 12 transitions, 62 flow [2021-04-29 05:13:56,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:13:56,786 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:13:56,787 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:13:56,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 05:13:56,787 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:13:56,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:13:56,788 INFO L82 PathProgramCache]: Analyzing trace with hash 328116283, now seen corresponding path program 4 times [2021-04-29 05:13:56,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:13:56,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759359937] [2021-04-29 05:13:56,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:13:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:13:56,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:13:56,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:13:56,905 INFO L142 QuantifierPusher]: treesize reduction 2488, result has 9.2 percent of original size [2021-04-29 05:13:56,909 INFO L147 QuantifierPusher]: treesize reduction 82, result has 67.3 percent of original size 169 [2021-04-29 05:13:57,015 INFO L142 QuantifierPusher]: treesize reduction 1925, result has 17.1 percent of original size [2021-04-29 05:13:57,023 INFO L147 QuantifierPusher]: treesize reduction 108, result has 72.7 percent of original size 288 [2021-04-29 05:13:57,177 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-04-29 05:13:57,209 INFO L142 QuantifierPusher]: treesize reduction 1099, result has 23.3 percent of original size [2021-04-29 05:13:57,221 INFO L147 QuantifierPusher]: treesize reduction 179, result has 46.4 percent of original size 155 [2021-04-29 05:13:57,365 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 21 [2021-04-29 05:13:57,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:13:57,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759359937] [2021-04-29 05:13:57,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:13:57,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:13:57,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888114295] [2021-04-29 05:13:57,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:13:57,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:13:57,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:13:57,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:13:57,373 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-04-29 05:13:57,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 12 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:13:57,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:13:57,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-04-29 05:13:57,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:13:57,567 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-04-29 05:13:57,567 INFO L130 PetriNetUnfolder]: For 47/59 co-relation queries the response was YES. [2021-04-29 05:13:57,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 19 events. 1/19 cut-off events. For 47/59 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 33 event pairs, 1 based on Foata normal form. 3/21 useless extension candidates. Maximal degree in co-relation 54. Up to 5 conditions per place. [2021-04-29 05:13:57,568 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 3 selfloop transitions, 1 changer transitions 4/14 dead transitions. [2021-04-29 05:13:57,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 14 transitions, 92 flow [2021-04-29 05:13:57,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:13:57,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:13:57,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-04-29 05:13:57,573 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6782608695652174 [2021-04-29 05:13:57,573 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-04-29 05:13:57,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-04-29 05:13:57,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:13:57,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-04-29 05:13:57,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2021-04-29 05:13:57,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:13:57,580 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:13:57,581 INFO L185 Difference]: Start difference. First operand has 26 places, 12 transitions, 62 flow. Second operand 5 states and 78 transitions. [2021-04-29 05:13:57,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 14 transitions, 92 flow [2021-04-29 05:13:57,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 14 transitions, 88 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-29 05:13:57,585 INFO L241 Difference]: Finished difference. Result has 30 places, 10 transitions, 49 flow [2021-04-29 05:13:57,585 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=49, PETRI_PLACES=30, PETRI_TRANSITIONS=10} [2021-04-29 05:13:57,585 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2021-04-29 05:13:57,585 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:13:57,586 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 10 transitions, 49 flow [2021-04-29 05:13:57,586 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 10 transitions, 49 flow [2021-04-29 05:13:57,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 10 transitions, 49 flow [2021-04-29 05:13:57,597 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-04-29 05:13:57,598 INFO L130 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2021-04-29 05:13:57,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 10 events. 0/10 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:13:57,599 INFO L146 LiptonReduction]: Number of co-enabled transitions 4 [2021-04-29 05:13:57,600 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:13:57,600 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:13:57,600 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-04-29 05:13:57,606 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 10 transitions, 49 flow [2021-04-29 05:13:57,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:13:57,607 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:13:57,607 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:13:57,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 05:13:57,607 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:13:57,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:13:57,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1174649455, now seen corresponding path program 5 times [2021-04-29 05:13:57,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:13:57,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250226742] [2021-04-29 05:13:57,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:13:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:13:57,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:13:57,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:13:57,715 INFO L142 QuantifierPusher]: treesize reduction 220, result has 46.2 percent of original size [2021-04-29 05:13:57,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-04-29 05:13:57,826 INFO L142 QuantifierPusher]: treesize reduction 376, result has 39.5 percent of original size [2021-04-29 05:13:57,831 INFO L147 QuantifierPusher]: treesize reduction 9, result has 96.3 percent of original size 237 [2021-04-29 05:13:58,011 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2021-04-29 05:13:58,020 INFO L142 QuantifierPusher]: treesize reduction 149, result has 47.3 percent of original size [2021-04-29 05:13:58,027 INFO L147 QuantifierPusher]: treesize reduction 46, result has 65.7 percent of original size 88 [2021-04-29 05:13:58,145 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 24 [2021-04-29 05:13:58,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:13:58,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250226742] [2021-04-29 05:13:58,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:13:58,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:13:58,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038333554] [2021-04-29 05:13:58,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:13:58,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:13:58,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:13:58,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:13:58,150 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-04-29 05:13:58,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 10 transitions, 49 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:13:58,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:13:58,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-04-29 05:13:58,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:13:58,289 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 05:13:58,427 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 05:13:58,436 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-04-29 05:13:58,436 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-04-29 05:13:58,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 16 events. 0/16 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 05:13:58,437 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 3 selfloop transitions, 1 changer transitions 2/12 dead transitions. [2021-04-29 05:13:58,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 12 transitions, 82 flow [2021-04-29 05:13:58,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:13:58,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:13:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2021-04-29 05:13:58,439 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6695652173913044 [2021-04-29 05:13:58,439 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 77 transitions. [2021-04-29 05:13:58,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 77 transitions. [2021-04-29 05:13:58,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:13:58,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 77 transitions. [2021-04-29 05:13:58,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:13:58,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:13:58,441 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:13:58,441 INFO L185 Difference]: Start difference. First operand has 27 places, 10 transitions, 49 flow. Second operand 5 states and 77 transitions. [2021-04-29 05:13:58,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 12 transitions, 82 flow [2021-04-29 05:13:58,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 12 transitions, 47 flow, removed 6 selfloop flow, removed 11 redundant places. [2021-04-29 05:13:58,443 INFO L241 Difference]: Finished difference. Result has 23 places, 10 transitions, 35 flow [2021-04-29 05:13:58,443 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=35, PETRI_PLACES=23, PETRI_TRANSITIONS=10} [2021-04-29 05:13:58,443 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2021-04-29 05:13:58,443 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:13:58,444 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 10 transitions, 35 flow [2021-04-29 05:13:58,444 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 10 transitions, 35 flow [2021-04-29 05:13:58,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 10 transitions, 35 flow [2021-04-29 05:13:58,448 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-04-29 05:13:58,448 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 05:13:58,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 11 events. 0/11 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:13:58,448 INFO L146 LiptonReduction]: Number of co-enabled transitions 2 [2021-04-29 05:13:58,449 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:13:58,449 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:13:58,450 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-04-29 05:13:58,451 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 10 transitions, 35 flow [2021-04-29 05:13:58,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:13:58,451 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:13:58,451 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:13:58,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 05:13:58,452 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:13:58,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:13:58,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1416840285, now seen corresponding path program 6 times [2021-04-29 05:13:58,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:13:58,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972866299] [2021-04-29 05:13:58,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:13:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:13:58,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:13:58,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:13:58,617 INFO L142 QuantifierPusher]: treesize reduction 3710, result has 14.3 percent of original size [2021-04-29 05:13:58,623 INFO L147 QuantifierPusher]: treesize reduction 81, result has 86.9 percent of original size 536 [2021-04-29 05:13:58,846 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2021-04-29 05:13:58,893 INFO L142 QuantifierPusher]: treesize reduction 3717, result has 29.2 percent of original size [2021-04-29 05:13:58,905 INFO L147 QuantifierPusher]: treesize reduction 704, result has 54.1 percent of original size 831 [2021-04-29 05:13:59,701 WARN L205 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 58 [2021-04-29 05:13:59,744 INFO L142 QuantifierPusher]: treesize reduction 1976, result has 22.8 percent of original size [2021-04-29 05:13:59,752 INFO L147 QuantifierPusher]: treesize reduction 383, result has 34.3 percent of original size 200 [2021-04-29 05:13:59,964 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 21 [2021-04-29 05:13:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:13:59,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972866299] [2021-04-29 05:13:59,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:13:59,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:13:59,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140984764] [2021-04-29 05:13:59,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:13:59,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:13:59,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:13:59,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:13:59,968 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-04-29 05:13:59,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 10 transitions, 35 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:13:59,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:13:59,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-04-29 05:13:59,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:14:00,167 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-29 05:14:00,382 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-29 05:14:00,384 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-04-29 05:14:00,384 INFO L130 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2021-04-29 05:14:00,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 10 events. 0/10 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:14:00,385 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2021-04-29 05:14:00,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 10 transitions, 44 flow [2021-04-29 05:14:00,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:14:00,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:14:00,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 75 transitions. [2021-04-29 05:14:00,386 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6521739130434783 [2021-04-29 05:14:00,387 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 75 transitions. [2021-04-29 05:14:00,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 75 transitions. [2021-04-29 05:14:00,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:14:00,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 75 transitions. [2021-04-29 05:14:00,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.0) internal successors, (75), 5 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) [2021-04-29 05:14:00,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:14:00,389 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-04-29 05:14:00,389 INFO L185 Difference]: Start difference. First operand has 21 places, 10 transitions, 35 flow. Second operand 5 states and 75 transitions. [2021-04-29 05:14:00,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 10 transitions, 44 flow [2021-04-29 05:14:00,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 10 transitions, 40 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-29 05:14:00,390 INFO L241 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2021-04-29 05:14:00,390 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2021-04-29 05:14:00,390 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2021-04-29 05:14:00,390 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:14:00,391 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 0 transitions, 0 flow [2021-04-29 05:14:00,391 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 0 transitions, 0 flow [2021-04-29 05:14:00,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 05:14:00,391 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 05:14:00,391 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 05:14:00,391 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. [2021-04-29 05:14:00,391 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 05:14:00,392 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:14:00,392 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:14:00,392 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 05:14:00,393 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 05:14:00,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-04-29 05:14:00,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 05:14:00,398 INFO L202 PluginConnector]: Adding new model node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 05:14:00 BasicIcfg [2021-04-29 05:14:00,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 05:14:00,400 INFO L168 Benchmark]: Toolchain (without parser) took 8825.48 ms. Allocated memory was 302.0 MB in the beginning and 444.6 MB in the end (delta: 142.6 MB). Free memory was 271.1 MB in the beginning and 357.0 MB in the end (delta: -85.9 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.0 GB. [2021-04-29 05:14:00,400 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:14:00,401 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.48 ms. Allocated memory is still 302.0 MB. Free memory was 285.3 MB in the beginning and 283.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 05:14:00,401 INFO L168 Benchmark]: Boogie Preprocessor took 21.33 ms. Allocated memory is still 302.0 MB. Free memory was 283.8 MB in the beginning and 282.8 MB in the end (delta: 972.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:14:00,402 INFO L168 Benchmark]: RCFGBuilder took 512.21 ms. Allocated memory is still 302.0 MB. Free memory was 282.8 MB in the beginning and 273.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-04-29 05:14:00,402 INFO L168 Benchmark]: TraceAbstraction took 8188.63 ms. Allocated memory was 302.0 MB in the beginning and 444.6 MB in the end (delta: 142.6 MB). Free memory was 273.0 MB in the beginning and 357.0 MB in the end (delta: -84.0 MB). Peak memory consumption was 60.8 MB. Max. memory is 16.0 GB. [2021-04-29 05:14:00,404 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 0.81 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 38.48 ms. Allocated memory is still 302.0 MB. Free memory was 285.3 MB in the beginning and 283.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.33 ms. Allocated memory is still 302.0 MB. Free memory was 283.8 MB in the beginning and 282.8 MB in the end (delta: 972.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 512.21 ms. Allocated memory is still 302.0 MB. Free memory was 282.8 MB in the beginning and 273.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8188.63 ms. Allocated memory was 302.0 MB in the beginning and 444.6 MB in the end (delta: 142.6 MB). Free memory was 273.0 MB in the beginning and 357.0 MB in the end (delta: -84.0 MB). Peak memory consumption was 60.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 451.7ms, 24 PlacesBefore, 24 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 18, 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: 18, positive: 18, positive conditional: 0, positive unconditional: 18, 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: 18, positive: 18, positive conditional: 0, positive unconditional: 18, 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: 18, positive: 18, positive conditional: 0, positive unconditional: 18, 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: 18, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 18, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4ms, 25 PlacesBefore, 20 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 16 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): 18, Positive cache size: 18, Positive conditional cache size: 18, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.3ms, 25 PlacesBefore, 24 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 14 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): 18, Positive cache size: 18, Positive conditional cache size: 18, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.0ms, 27 PlacesBefore, 26 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 14 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): 18, Positive cache size: 18, Positive conditional cache size: 18, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.4ms, 30 PlacesBefore, 27 PlacesAfterwards, 10 TransitionsBefore, 10 TransitionsAfterwards, 4 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): 18, Positive cache size: 18, Positive conditional cache size: 18, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5ms, 23 PlacesBefore, 21 PlacesAfterwards, 10 TransitionsBefore, 10 TransitionsAfterwards, 2 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): 18, Positive cache size: 18, Positive conditional cache size: 18, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9ms, 22 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): 18, Positive cache size: 18, Positive conditional cache size: 18, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 68]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 8042.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2098.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 587.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 17 SDtfs, 32 SDslu, 0 SDs, 0 SdLazy, 110 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 188.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5024.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=3, InterpolantAutomatonStates: 30, 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: 25.7ms SsaConstructionTime, 295.4ms SatisfiabilityAnalysisTime, 4751.5ms InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 2769 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...