/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/unroll-cond-5.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 04:17:49,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 04:17:49,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 04:17:50,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 04:17:50,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 04:17:50,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 04:17:50,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 04:17:50,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 04:17:50,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 04:17:50,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 04:17:50,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 04:17:50,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 04:17:50,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 04:17:50,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 04:17:50,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 04:17:50,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 04:17:50,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 04:17:50,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 04:17:50,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 04:17:50,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 04:17:50,089 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 [2021-03-26 04:17:50,124 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 04:17:50,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 04:17:50,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 04:17:50,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 04:17:50,127 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 04:17:50,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 04:17:50,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 04:17:50,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 04:17:50,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 04:17:50,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 04:17:50,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 04:17:50,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 04:17:50,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 04:17:50,129 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 04:17:50,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 04:17:50,129 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 04:17:50,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 04:17:50,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 04:17:50,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 04:17:50,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 04:17:50,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 04:17:50,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 04:17:50,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 04:17:50,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 04:17:50,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 04:17:50,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 04:17:50,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 04:17:50,131 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 04:17:50,131 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 04:17:50,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 04:17:50,131 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 04:17:50,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 04:17:50,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 04:17:50,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 04:17:50,447 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 04:17:50,448 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 04:17:50,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-5.wvr.bpl [2021-03-26 04:17:50,449 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-5.wvr.bpl' [2021-03-26 04:17:50,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 04:17:50,502 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 04:17:50,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 04:17:50,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 04:17:50,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 04:17:50,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:17:50" (1/1) ... [2021-03-26 04:17:50,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:17:50" (1/1) ... [2021-03-26 04:17:50,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 04:17:50,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 04:17:50,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 04:17:50,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 04:17:50,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:17:50" (1/1) ... [2021-03-26 04:17:50,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:17:50" (1/1) ... [2021-03-26 04:17:50,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:17:50" (1/1) ... [2021-03-26 04:17:50,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:17:50" (1/1) ... [2021-03-26 04:17:50,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:17:50" (1/1) ... [2021-03-26 04:17:50,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:17:50" (1/1) ... [2021-03-26 04:17:50,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:17:50" (1/1) ... [2021-03-26 04:17:50,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 04:17:50,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 04:17:50,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 04:17:50,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 04:17:50,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:17:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 04:17:50,639 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 04:17:50,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 04:17:50,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 04:17:50,641 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 04:17:50,642 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 04:17:50,642 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 04:17:50,642 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 04:17:50,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 04:17:50,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 04:17:50,643 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 04:17:50,969 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 04:17:50,970 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-03-26 04:17:50,970 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-03-26 04:17:50,971 INFO L202 PluginConnector]: Adding new model unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 04:17:50 BoogieIcfgContainer [2021-03-26 04:17:50,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 04:17:50,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 04:17:50,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 04:17:50,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 04:17:50,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:17:50" (1/2) ... [2021-03-26 04:17:50,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473c7e04 and model type unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 04:17:50, skipping insertion in model container [2021-03-26 04:17:50,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 04:17:50" (2/2) ... [2021-03-26 04:17:50,992 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-5.wvr.bpl [2021-03-26 04:17:50,997 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 04:17:51,000 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 04:17:51,000 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 04:17:51,052 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-26 04:17:51,076 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 04:17:51,108 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 04:17:51,108 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 04:17:51,108 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 04:17:51,108 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 04:17:51,108 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 04:17:51,108 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 04:17:51,109 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 04:17:51,109 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 04:17:51,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 16 transitions, 48 flow [2021-03-26 04:17:51,140 INFO L129 PetriNetUnfolder]: 2/14 cut-off events. [2021-03-26 04:17:51,140 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 04:17:51,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 14 events. 2/14 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 9. Up to 2 conditions per place. [2021-03-26 04:17:51,143 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 16 transitions, 48 flow [2021-03-26 04:17:51,145 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 17 places, 12 transitions, 36 flow [2021-03-26 04:17:51,146 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:17:51,164 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 12 transitions, 36 flow [2021-03-26 04:17:51,168 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 12 transitions, 36 flow [2021-03-26 04:17:51,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 12 transitions, 36 flow [2021-03-26 04:17:51,182 INFO L129 PetriNetUnfolder]: 2/12 cut-off events. [2021-03-26 04:17:51,182 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 04:17:51,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 12 events. 2/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 8. Up to 2 conditions per place. [2021-03-26 04:17:51,184 INFO L142 LiptonReduction]: Number of co-enabled transitions 22 [2021-03-26 04:17:51,271 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 04:17:51,271 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:17:51,279 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 133 [2021-03-26 04:17:51,288 INFO L129 PetriNetUnfolder]: 2/9 cut-off events. [2021-03-26 04:17:51,288 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 04:17:51,289 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:17:51,289 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:17:51,289 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:17:51,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:17:51,294 INFO L82 PathProgramCache]: Analyzing trace with hash -2115427910, now seen corresponding path program 1 times [2021-03-26 04:17:51,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:17:51,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107218983] [2021-03-26 04:17:51,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:17:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:17:51,422 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:17:51,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:17:51,433 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-03-26 04:17:51,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:17:51,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:51,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:51,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:17:51,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107218983] [2021-03-26 04:17:51,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:17:51,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 04:17:51,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839212218] [2021-03-26 04:17:51,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:17:51,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:17:51,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:17:51,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:17:51,467 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 18 [2021-03-26 04:17:51,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 10 transitions, 32 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:51,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:17:51,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 18 [2021-03-26 04:17:51,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:17:51,515 INFO L129 PetriNetUnfolder]: 17/42 cut-off events. [2021-03-26 04:17:51,515 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-26 04:17:51,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 42 events. 17/42 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 105 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 68. Up to 25 conditions per place. [2021-03-26 04:17:51,517 INFO L132 encePairwiseOnDemand]: 12/18 looper letters, 7 selfloop transitions, 10 changer transitions 0/21 dead transitions. [2021-03-26 04:17:51,517 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 21 transitions, 88 flow [2021-03-26 04:17:51,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:17:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:17:51,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2021-03-26 04:17:51,526 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7 [2021-03-26 04:17:51,527 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 63 transitions. [2021-03-26 04:17:51,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 63 transitions. [2021-03-26 04:17:51,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:17:51,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 63 transitions. [2021-03-26 04:17:51,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:51,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:51,535 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:51,536 INFO L185 Difference]: Start difference. First operand has 15 places, 10 transitions, 32 flow. Second operand 5 states and 63 transitions. [2021-03-26 04:17:51,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 21 transitions, 88 flow [2021-03-26 04:17:51,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 21 transitions, 80 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 04:17:51,541 INFO L241 Difference]: Finished difference. Result has 17 places, 19 transitions, 81 flow [2021-03-26 04:17:51,542 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=81, PETRI_PLACES=17, PETRI_TRANSITIONS=19} [2021-03-26 04:17:51,543 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 2 predicate places. [2021-03-26 04:17:51,543 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:17:51,543 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 19 transitions, 81 flow [2021-03-26 04:17:51,544 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 19 transitions, 81 flow [2021-03-26 04:17:51,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 19 transitions, 81 flow [2021-03-26 04:17:51,552 INFO L129 PetriNetUnfolder]: 14/39 cut-off events. [2021-03-26 04:17:51,552 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 04:17:51,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 39 events. 14/39 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 100 event pairs, 1 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 60. Up to 17 conditions per place. [2021-03-26 04:17:51,554 INFO L142 LiptonReduction]: Number of co-enabled transitions 26 [2021-03-26 04:17:51,555 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:17:51,555 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:17:51,555 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 04:17:51,556 INFO L480 AbstractCegarLoop]: Abstraction has has 17 places, 19 transitions, 81 flow [2021-03-26 04:17:51,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:51,557 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:17:51,557 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:17:51,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 04:17:51,557 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:17:51,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:17:51,558 INFO L82 PathProgramCache]: Analyzing trace with hash -2125258940, now seen corresponding path program 2 times [2021-03-26 04:17:51,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:17:51,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129958397] [2021-03-26 04:17:51,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:17:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:17:51,586 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:17:51,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:17:51,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:51,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:17:51,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:51,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:51,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:17:51,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129958397] [2021-03-26 04:17:51,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:17:51,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 04:17:51,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233081996] [2021-03-26 04:17:51,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:17:51,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:17:51,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:17:51,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:17:51,616 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 18 [2021-03-26 04:17:51,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 19 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:51,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:17:51,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 18 [2021-03-26 04:17:51,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:17:51,673 INFO L129 PetriNetUnfolder]: 15/38 cut-off events. [2021-03-26 04:17:51,674 INFO L130 PetriNetUnfolder]: For 17/23 co-relation queries the response was YES. [2021-03-26 04:17:51,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 38 events. 15/38 cut-off events. For 17/23 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 87 event pairs, 2 based on Foata normal form. 4/35 useless extension candidates. Maximal degree in co-relation 89. Up to 27 conditions per place. [2021-03-26 04:17:51,677 INFO L132 encePairwiseOnDemand]: 12/18 looper letters, 11 selfloop transitions, 4 changer transitions 2/21 dead transitions. [2021-03-26 04:17:51,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 21 transitions, 124 flow [2021-03-26 04:17:51,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:17:51,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:17:51,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 49 transitions. [2021-03-26 04:17:51,685 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2021-03-26 04:17:51,685 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 49 transitions. [2021-03-26 04:17:51,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 49 transitions. [2021-03-26 04:17:51,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:17:51,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 49 transitions. [2021-03-26 04:17:51,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:51,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:51,688 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:51,688 INFO L185 Difference]: Start difference. First operand has 17 places, 19 transitions, 81 flow. Second operand 4 states and 49 transitions. [2021-03-26 04:17:51,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 21 transitions, 124 flow [2021-03-26 04:17:51,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 21 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 04:17:51,694 INFO L241 Difference]: Finished difference. Result has 22 places, 19 transitions, 97 flow [2021-03-26 04:17:51,694 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2021-03-26 04:17:51,694 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 7 predicate places. [2021-03-26 04:17:51,695 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:17:51,695 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 19 transitions, 97 flow [2021-03-26 04:17:51,695 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 19 transitions, 97 flow [2021-03-26 04:17:51,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 19 transitions, 97 flow [2021-03-26 04:17:51,703 INFO L129 PetriNetUnfolder]: 12/31 cut-off events. [2021-03-26 04:17:51,703 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-26 04:17:51,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 31 events. 12/31 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 61 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 72. Up to 17 conditions per place. [2021-03-26 04:17:51,704 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-26 04:17:51,705 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:17:51,705 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:17:51,705 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 04:17:51,707 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 19 transitions, 97 flow [2021-03-26 04:17:51,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:51,707 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:17:51,707 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:17:51,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 04:17:51,708 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:17:51,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:17:51,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1497303604, now seen corresponding path program 1 times [2021-03-26 04:17:51,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:17:51,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549532355] [2021-03-26 04:17:51,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:17:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:17:51,797 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:17:51,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:17:52,866 WARN L205 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 5498 DAG size of output: 55 [2021-03-26 04:17:52,868 INFO L142 QuantifierPusher]: treesize reduction 2095112, result has 0.0 percent of original size [2021-03-26 04:17:52,870 INFO L147 QuantifierPusher]: treesize reduction 30, result has 82.0 percent of original size 137 [2021-03-26 04:17:53,521 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 5496 DAG size of output: 12 [2021-03-26 04:17:53,522 INFO L142 QuantifierPusher]: treesize reduction 2095263, result has 0.0 percent of original size [2021-03-26 04:17:53,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 04:17:53,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:17:53,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549532355] [2021-03-26 04:17:53,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80316604] [2021-03-26 04:17:53,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:17:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:17:53,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 16 conjunts are in the unsatisfiable core [2021-03-26 04:17:53,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:17:53,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:53,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:53,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:53,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:53,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:53,670 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-26 04:17:53,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:17:53,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:53,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:17:53,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:17:53,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:53,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:53,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:53,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:53,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:53,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:53,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-03-26 04:17:53,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:53,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:53,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-03-26 04:17:53,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 282 [2021-03-26 04:17:54,498 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 2125 DAG size of output: 13 [2021-03-26 04:17:54,499 INFO L142 QuantifierPusher]: treesize reduction 2228209, result has 0.0 percent of original size [2021-03-26 04:17:54,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:54,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:54,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:17:54,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:17:54,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-03-26 04:17:54,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:54,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:54,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:54,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:54,529 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-26 04:17:54,530 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:54,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:54,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:54,531 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-26 04:17:54,531 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-03-26 04:17:54,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:54,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:54,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:54,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:54,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:54,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:54,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:54,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:54,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:54,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:54,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:54,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:17:54,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:17:54,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-26 04:17:54,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684932520] [2021-03-26 04:17:54,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:17:54,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:17:54,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:17:54,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:17:54,537 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 18 [2021-03-26 04:17:54,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 19 transitions, 97 flow. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:54,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:17:54,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 18 [2021-03-26 04:17:54,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:17:54,594 INFO L129 PetriNetUnfolder]: 18/43 cut-off events. [2021-03-26 04:17:54,595 INFO L130 PetriNetUnfolder]: For 29/31 co-relation queries the response was YES. [2021-03-26 04:17:54,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 43 events. 18/43 cut-off events. For 29/31 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 96 event pairs, 0 based on Foata normal form. 3/38 useless extension candidates. Maximal degree in co-relation 125. Up to 29 conditions per place. [2021-03-26 04:17:54,596 INFO L132 encePairwiseOnDemand]: 12/18 looper letters, 11 selfloop transitions, 7 changer transitions 2/24 dead transitions. [2021-03-26 04:17:54,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 159 flow [2021-03-26 04:17:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:17:54,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:17:54,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2021-03-26 04:17:54,597 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2021-03-26 04:17:54,597 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 70 transitions. [2021-03-26 04:17:54,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 70 transitions. [2021-03-26 04:17:54,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:17:54,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 70 transitions. [2021-03-26 04:17:54,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:54,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:54,599 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:54,599 INFO L185 Difference]: Start difference. First operand has 21 places, 19 transitions, 97 flow. Second operand 6 states and 70 transitions. [2021-03-26 04:17:54,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 159 flow [2021-03-26 04:17:54,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 147 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-26 04:17:54,601 INFO L241 Difference]: Finished difference. Result has 26 places, 22 transitions, 129 flow [2021-03-26 04:17:54,601 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=129, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2021-03-26 04:17:54,601 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 11 predicate places. [2021-03-26 04:17:54,601 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:17:54,601 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 22 transitions, 129 flow [2021-03-26 04:17:54,602 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 22 transitions, 129 flow [2021-03-26 04:17:54,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 22 transitions, 129 flow [2021-03-26 04:17:54,606 INFO L129 PetriNetUnfolder]: 17/38 cut-off events. [2021-03-26 04:17:54,607 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-03-26 04:17:54,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 38 events. 17/38 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 71 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 112. Up to 22 conditions per place. [2021-03-26 04:17:54,607 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-26 04:17:54,608 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:17:54,609 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:17:54,609 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 04:17:54,609 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 22 transitions, 129 flow [2021-03-26 04:17:54,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:54,610 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:17:54,610 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:17:54,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-03-26 04:17:54,831 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:17:54,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:17:54,831 INFO L82 PathProgramCache]: Analyzing trace with hash 231552268, now seen corresponding path program 2 times [2021-03-26 04:17:54,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:17:54,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504238485] [2021-03-26 04:17:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:17:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:17:54,863 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:17:54,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:17:55,561 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 5498 DAG size of output: 55 [2021-03-26 04:17:55,561 INFO L142 QuantifierPusher]: treesize reduction 2095112, result has 0.0 percent of original size [2021-03-26 04:17:55,563 INFO L147 QuantifierPusher]: treesize reduction 30, result has 82.0 percent of original size 137 [2021-03-26 04:17:55,652 INFO L142 QuantifierPusher]: treesize reduction 10, result has 47.4 percent of original size [2021-03-26 04:17:55,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:17:55,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:17:55,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504238485] [2021-03-26 04:17:55,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380880015] [2021-03-26 04:17:55,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:17:55,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:17:55,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:17:55,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 16 conjunts are in the unsatisfiable core [2021-03-26 04:17:55,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:17:55,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:55,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:55,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:55,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:55,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:55,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:55,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:55,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:55,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:55,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:55,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:55,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:55,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:55,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:55,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:55,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:17:55,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-03-26 04:17:55,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:55,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:55,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-26 04:17:55,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 283 [2021-03-26 04:17:56,470 WARN L205 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 2127 DAG size of output: 55 [2021-03-26 04:17:56,471 INFO L142 QuantifierPusher]: treesize reduction 2228085, result has 0.0 percent of original size [2021-03-26 04:17:56,472 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:17:56,478 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,480 INFO L142 QuantifierPusher]: treesize reduction 70, result has 50.4 percent of original size [2021-03-26 04:17:56,481 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:17:56,482 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:56,485 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:17:56,486 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:17:56,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:17:56,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 04:17:56,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:17:56,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-26 04:17:56,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:17:56,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:17:56,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 04:17:56,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,499 INFO L142 QuantifierPusher]: treesize reduction 70, result has 48.1 percent of original size [2021-03-26 04:17:56,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 04:17:56,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 04:17:56,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-03-26 04:17:56,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,509 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-26 04:17:56,527 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-03-26 04:17:56,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,530 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:17:56,534 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,535 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size [2021-03-26 04:17:56,536 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:17:56,539 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,543 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:17:56,546 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:17:56,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:17:56,551 INFO L147 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size 8 [2021-03-26 04:17:56,551 INFO L147 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size 8 [2021-03-26 04:17:56,552 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-26 04:17:56,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:17:56,552 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-03-26 04:17:56,561 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 18 [2021-03-26 04:17:56,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:17:56,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:17:56,563 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-03-26 04:17:56,587 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 17 treesize of output 64 [2021-03-26 04:17:56,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,594 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:17:56,596 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,597 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-03-26 04:17:56,598 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:17:56,603 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,606 INFO L142 QuantifierPusher]: treesize reduction 9, result has 86.8 percent of original size [2021-03-26 04:17:56,608 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:17:56,614 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,617 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:17:56,620 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:17:56,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:17:56,626 INFO L147 QuantifierPusher]: treesize reduction 8, result has 81.8 percent of original size 36 [2021-03-26 04:17:56,627 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-26 04:17:56,627 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-26 04:17:56,630 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:17:56,632 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,633 INFO L142 QuantifierPusher]: treesize reduction 16, result has 82.4 percent of original size [2021-03-26 04:17:56,633 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:17:56,634 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,636 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size [2021-03-26 04:17:56,638 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:17:56,644 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:17:56,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:17:56,652 INFO L147 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size 8 [2021-03-26 04:17:56,652 INFO L147 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size 8 [2021-03-26 04:17:56,653 INFO L142 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size [2021-03-26 04:17:56,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:17:56,654 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-03-26 04:17:56,716 INFO L628 ElimStorePlain]: treesize reduction 61, result has 26.5 percent of original size [2021-03-26 04:17:56,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:17:56,717 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-03-26 04:17:56,718 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:108, output treesize:22 [2021-03-26 04:17:56,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:17:56,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:17:56,744 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-26 04:17:56,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:17:56,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:17:56,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:17:56,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,751 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:17:56,753 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:17:56,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:56,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:56,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:17:56,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:17:56,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-26 04:17:56,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547892827] [2021-03-26 04:17:56,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:17:56,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:17:56,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:17:56,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:17:56,776 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 18 [2021-03-26 04:17:56,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 22 transitions, 129 flow. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:56,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:17:56,776 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 18 [2021-03-26 04:17:56,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:17:56,885 INFO L129 PetriNetUnfolder]: 22/50 cut-off events. [2021-03-26 04:17:56,885 INFO L130 PetriNetUnfolder]: For 53/57 co-relation queries the response was YES. [2021-03-26 04:17:56,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 50 events. 22/50 cut-off events. For 53/57 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 122 event pairs, 0 based on Foata normal form. 5/45 useless extension candidates. Maximal degree in co-relation 183. Up to 29 conditions per place. [2021-03-26 04:17:56,886 INFO L132 encePairwiseOnDemand]: 12/18 looper letters, 5 selfloop transitions, 19 changer transitions 0/28 dead transitions. [2021-03-26 04:17:56,886 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 223 flow [2021-03-26 04:17:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 04:17:56,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 04:17:56,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 97 transitions. [2021-03-26 04:17:56,890 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6736111111111112 [2021-03-26 04:17:56,890 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 97 transitions. [2021-03-26 04:17:56,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 97 transitions. [2021-03-26 04:17:56,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:17:56,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 97 transitions. [2021-03-26 04:17:56,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:56,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:56,894 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:56,894 INFO L185 Difference]: Start difference. First operand has 24 places, 22 transitions, 129 flow. Second operand 8 states and 97 transitions. [2021-03-26 04:17:56,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 223 flow [2021-03-26 04:17:56,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 191 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-26 04:17:56,898 INFO L241 Difference]: Finished difference. Result has 29 places, 28 transitions, 200 flow [2021-03-26 04:17:56,898 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=200, PETRI_PLACES=29, PETRI_TRANSITIONS=28} [2021-03-26 04:17:56,898 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 14 predicate places. [2021-03-26 04:17:56,899 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:17:56,899 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 28 transitions, 200 flow [2021-03-26 04:17:56,899 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 28 transitions, 200 flow [2021-03-26 04:17:56,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions, 200 flow [2021-03-26 04:17:56,908 INFO L129 PetriNetUnfolder]: 21/48 cut-off events. [2021-03-26 04:17:56,908 INFO L130 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2021-03-26 04:17:56,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 48 events. 21/48 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 107 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 152. Up to 26 conditions per place. [2021-03-26 04:17:56,910 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-26 04:17:56,912 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:17:56,912 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:17:56,913 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 04:17:56,914 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 28 transitions, 200 flow [2021-03-26 04:17:56,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:17:56,914 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:17:56,914 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:17:57,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:17:57,128 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:17:57,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:17:57,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1154918524, now seen corresponding path program 3 times [2021-03-26 04:17:57,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:17:57,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283210325] [2021-03-26 04:17:57,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:17:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:17:57,147 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:17:57,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:17:57,153 INFO L142 QuantifierPusher]: treesize reduction 10, result has 58.3 percent of original size [2021-03-26 04:17:57,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:17:57,165 INFO L142 QuantifierPusher]: treesize reduction 10, result has 47.4 percent of original size [2021-03-26 04:17:57,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:17:57,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:17:57,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:17:57,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283210325] [2021-03-26 04:17:57,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004612088] [2021-03-26 04:17:57,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-26 04:17:57,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 04:17:57,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:17:57,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 16 conjunts are in the unsatisfiable core [2021-03-26 04:17:57,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:17:57,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:57,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:57,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:57,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:17:57,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:57,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:57,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:57,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:57,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:57,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:57,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:57,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:17:57,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 368 [2021-03-26 04:17:57,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:17:57,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 368 [2021-03-26 04:20:20,203 WARN L205 SmtUtils]: Spent 2.37 m on a formula simplification. DAG size of input: 112621 DAG size of output: 53 [2021-03-26 04:20:20,205 INFO L142 QuantifierPusher]: treesize reduction 700448615, result has 0.0 percent of original size [2021-03-26 04:20:20,207 INFO L147 QuantifierPusher]: treesize reduction 56, result has 61.6 percent of original size 90 [2021-03-26 04:20:20,214 INFO L142 QuantifierPusher]: treesize reduction 56, result has 61.6 percent of original size [2021-03-26 04:20:20,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-03-26 04:20:20,256 INFO L142 QuantifierPusher]: treesize reduction 12, result has 88.5 percent of original size [2021-03-26 04:20:20,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-26 04:20:20,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 04:20:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 04:20:20,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,265 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:20,266 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,268 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:20,270 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:20,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:20:20,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:20:20,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:20:20,277 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:20,278 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:20:20,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:20,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 04:20:20,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:20:20,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 04:20:20,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 04:20:20,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 04:20:20,308 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-03-26 04:20:20,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,311 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:20,312 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,315 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.9 percent of original size [2021-03-26 04:20:20,316 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:20,316 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:20,322 INFO L147 QuantifierPusher]: treesize reduction 14, result has 36.4 percent of original size 8 [2021-03-26 04:20:20,323 INFO L147 QuantifierPusher]: treesize reduction 14, result has 36.4 percent of original size 8 [2021-03-26 04:20:20,324 INFO L142 QuantifierPusher]: treesize reduction 14, result has 36.4 percent of original size [2021-03-26 04:20:20,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:20:20,324 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-03-26 04:20:20,333 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 18 [2021-03-26 04:20:20,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:20:20,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:20:20,337 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-03-26 04:20:20,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-03-26 04:20:20,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,345 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-26 04:20:20,374 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 17 treesize of output 64 [2021-03-26 04:20:20,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,381 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:20:20,382 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,383 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-03-26 04:20:20,384 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:20:20,385 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,385 INFO L142 QuantifierPusher]: treesize reduction 5, result has 91.7 percent of original size [2021-03-26 04:20:20,388 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:20,389 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,390 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:20,392 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,396 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:20,399 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:20,403 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:20,404 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:20,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:20,406 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:20,407 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,408 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:20,415 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:20,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:20,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:20,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:20:20,427 INFO L147 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size 43 [2021-03-26 04:20:20,428 INFO L147 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size 43 [2021-03-26 04:20:20,428 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:20,429 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,434 INFO L142 QuantifierPusher]: treesize reduction 65, result has 50.0 percent of original size [2021-03-26 04:20:20,435 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:20,436 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:20,444 INFO L147 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size 8 [2021-03-26 04:20:20,444 INFO L147 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size 8 [2021-03-26 04:20:20,445 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-26 04:20:20,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:20:20,445 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-03-26 04:20:20,506 INFO L628 ElimStorePlain]: treesize reduction 58, result has 27.5 percent of original size [2021-03-26 04:20:20,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:20,507 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-03-26 04:20:20,508 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:105, output treesize:22 [2021-03-26 04:20:20,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:20,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:20,526 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-26 04:20:20,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:20,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:20,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:20:20,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,534 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:20,535 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:20,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:20,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:20,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:20,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:20:20,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-26 04:20:20,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951503218] [2021-03-26 04:20:20,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:20:20,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:20:20,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:20:20,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:20:20,546 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 18 [2021-03-26 04:20:20,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 28 transitions, 200 flow. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:20,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:20:20,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 18 [2021-03-26 04:20:20,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:20:20,758 INFO L129 PetriNetUnfolder]: 26/69 cut-off events. [2021-03-26 04:20:20,759 INFO L130 PetriNetUnfolder]: For 105/107 co-relation queries the response was YES. [2021-03-26 04:20:20,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 69 events. 26/69 cut-off events. For 105/107 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 216 event pairs, 0 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 252. Up to 38 conditions per place. [2021-03-26 04:20:20,760 INFO L132 encePairwiseOnDemand]: 12/18 looper letters, 11 selfloop transitions, 24 changer transitions 2/41 dead transitions. [2021-03-26 04:20:20,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 377 flow [2021-03-26 04:20:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 04:20:20,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 04:20:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 127 transitions. [2021-03-26 04:20:20,761 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6414141414141414 [2021-03-26 04:20:20,761 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 127 transitions. [2021-03-26 04:20:20,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 127 transitions. [2021-03-26 04:20:20,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:20:20,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 127 transitions. [2021-03-26 04:20:20,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:20,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 18.0) internal successors, (216), 12 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:20,763 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 18.0) internal successors, (216), 12 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:20,763 INFO L185 Difference]: Start difference. First operand has 29 places, 28 transitions, 200 flow. Second operand 11 states and 127 transitions. [2021-03-26 04:20:20,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 377 flow [2021-03-26 04:20:20,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 329 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-26 04:20:20,765 INFO L241 Difference]: Finished difference. Result has 37 places, 38 transitions, 297 flow [2021-03-26 04:20:20,766 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=297, PETRI_PLACES=37, PETRI_TRANSITIONS=38} [2021-03-26 04:20:20,766 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 22 predicate places. [2021-03-26 04:20:20,766 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:20:20,766 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 38 transitions, 297 flow [2021-03-26 04:20:20,766 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 38 transitions, 297 flow [2021-03-26 04:20:20,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 38 transitions, 297 flow [2021-03-26 04:20:20,771 INFO L129 PetriNetUnfolder]: 26/63 cut-off events. [2021-03-26 04:20:20,771 INFO L130 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2021-03-26 04:20:20,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 63 events. 26/63 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 177 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 232. Up to 29 conditions per place. [2021-03-26 04:20:20,772 INFO L142 LiptonReduction]: Number of co-enabled transitions 28 [2021-03-26 04:20:20,818 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:20:20,818 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:20:20,818 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-26 04:20:20,819 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 37 transitions, 293 flow [2021-03-26 04:20:20,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:20,819 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:20:20,819 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:20:21,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:21,028 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:20:21,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:20:21,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1401498631, now seen corresponding path program 1 times [2021-03-26 04:20:21,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:20:21,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584589626] [2021-03-26 04:20:21,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:20:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:20:21,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:20:21,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:20:21,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:21,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:21,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584589626] [2021-03-26 04:20:21,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12425808] [2021-03-26 04:20:21,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:20:21,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2021-03-26 04:20:21,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:20:21,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:21,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:21,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:20:21,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:20:21,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:21,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:20:21,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:20:21,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:20:21,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:20:21,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:20:21,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:20:21,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:20:21,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:20:21,094 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-26 04:20:21,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:21,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:21,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:21,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:21,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:21,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:21,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:21,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:21,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:21,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:21,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:21,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:21,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:20:21,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-03-26 04:20:21,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167706509] [2021-03-26 04:20:21,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:20:21,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:20:21,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:20:21,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:20:21,101 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 19 [2021-03-26 04:20:21,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 37 transitions, 293 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:21,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:20:21,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 19 [2021-03-26 04:20:21,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:20:21,138 INFO L129 PetriNetUnfolder]: 26/62 cut-off events. [2021-03-26 04:20:21,138 INFO L130 PetriNetUnfolder]: For 115/117 co-relation queries the response was YES. [2021-03-26 04:20:21,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 62 events. 26/62 cut-off events. For 115/117 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 167 event pairs, 0 based on Foata normal form. 5/54 useless extension candidates. Maximal degree in co-relation 280. Up to 41 conditions per place. [2021-03-26 04:20:21,139 INFO L132 encePairwiseOnDemand]: 13/19 looper letters, 25 selfloop transitions, 7 changer transitions 0/37 dead transitions. [2021-03-26 04:20:21,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 360 flow [2021-03-26 04:20:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:20:21,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:20:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 68 transitions. [2021-03-26 04:20:21,140 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7157894736842105 [2021-03-26 04:20:21,140 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 68 transitions. [2021-03-26 04:20:21,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 68 transitions. [2021-03-26 04:20:21,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:20:21,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 68 transitions. [2021-03-26 04:20:21,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:21,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:21,141 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:21,141 INFO L185 Difference]: Start difference. First operand has 34 places, 37 transitions, 293 flow. Second operand 5 states and 68 transitions. [2021-03-26 04:20:21,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 360 flow [2021-03-26 04:20:21,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 37 transitions, 258 flow, removed 38 selfloop flow, removed 7 redundant places. [2021-03-26 04:20:21,144 INFO L241 Difference]: Finished difference. Result has 31 places, 35 transitions, 199 flow [2021-03-26 04:20:21,144 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=31, PETRI_TRANSITIONS=35} [2021-03-26 04:20:21,144 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 16 predicate places. [2021-03-26 04:20:21,144 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:20:21,144 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 35 transitions, 199 flow [2021-03-26 04:20:21,144 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 35 transitions, 199 flow [2021-03-26 04:20:21,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 35 transitions, 199 flow [2021-03-26 04:20:21,149 INFO L129 PetriNetUnfolder]: 26/62 cut-off events. [2021-03-26 04:20:21,149 INFO L130 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2021-03-26 04:20:21,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 62 events. 26/62 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 166 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 163. Up to 27 conditions per place. [2021-03-26 04:20:21,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-26 04:20:21,152 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:20:21,152 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:20:21,152 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 04:20:21,153 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 35 transitions, 199 flow [2021-03-26 04:20:21,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:21,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:20:21,153 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:20:21,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:21,376 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:20:21,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:20:21,377 INFO L82 PathProgramCache]: Analyzing trace with hash 802041338, now seen corresponding path program 4 times [2021-03-26 04:20:21,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:20:21,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601747086] [2021-03-26 04:20:21,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:20:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:20:21,404 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:20:21,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:20:22,067 WARN L205 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 2888 DAG size of output: 58 [2021-03-26 04:20:22,068 INFO L142 QuantifierPusher]: treesize reduction 2622962, result has 0.0 percent of original size [2021-03-26 04:20:22,070 INFO L147 QuantifierPusher]: treesize reduction 10, result has 95.9 percent of original size 231 [2021-03-26 04:20:22,287 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2021-03-26 04:20:23,467 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 7770 DAG size of output: 63 [2021-03-26 04:20:23,468 INFO L142 QuantifierPusher]: treesize reduction 5172355, result has 0.0 percent of original size [2021-03-26 04:20:23,469 INFO L147 QuantifierPusher]: treesize reduction 132, result has 63.9 percent of original size 234 [2021-03-26 04:20:23,678 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2021-03-26 04:20:23,680 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 04:20:23,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:20:23,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:23,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601747086] [2021-03-26 04:20:23,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690510485] [2021-03-26 04:20:23,695 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:23,715 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-26 04:20:23,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:20:23,715 WARN L261 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-26 04:20:23,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:20:23,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:23,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:20:23,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:20:23,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:20:23,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:20:23,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:20:23,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:20:23,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:20:23,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:20:23,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 283 [2021-03-26 04:20:23,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:23,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:23,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-03-26 04:20:23,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 285 [2021-03-26 04:20:24,466 WARN L205 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 2127 DAG size of output: 32 [2021-03-26 04:20:24,466 INFO L142 QuantifierPusher]: treesize reduction 2228169, result has 0.0 percent of original size [2021-03-26 04:20:24,467 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:24,472 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:20:24,474 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:24,476 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:24,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:24,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:20:24,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:20:24,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:20:24,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:20:24,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-26 04:20:24,510 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 37 [2021-03-26 04:20:24,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,512 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:24,513 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,514 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:24,515 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,516 INFO L142 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size [2021-03-26 04:20:24,517 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:24,519 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:24,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:24,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:20:24,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:20:24,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:20:24,524 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-03-26 04:20:24,553 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 19 treesize of output 64 [2021-03-26 04:20:24,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,556 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:20:24,557 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,558 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-03-26 04:20:24,558 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:20:24,559 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,560 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-03-26 04:20:24,560 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:24,561 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,562 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:24,563 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,564 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:24,565 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:20:24,567 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:24,568 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:20:24,570 INFO L147 QuantifierPusher]: treesize reduction 5, result has 81.5 percent of original size 22 [2021-03-26 04:20:24,571 INFO L147 QuantifierPusher]: treesize reduction 10, result has 77.3 percent of original size 34 [2021-03-26 04:20:24,571 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:24,572 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,573 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:24,575 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:24,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:24,580 INFO L147 QuantifierPusher]: treesize reduction 14, result has 73.6 percent of original size 39 [2021-03-26 04:20:24,580 INFO L147 QuantifierPusher]: treesize reduction 32, result has 63.2 percent of original size 55 [2021-03-26 04:20:24,581 INFO L147 QuantifierPusher]: treesize reduction 32, result has 63.2 percent of original size 55 [2021-03-26 04:20:24,581 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:24,582 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,583 INFO L142 QuantifierPusher]: treesize reduction 36, result has 65.7 percent of original size [2021-03-26 04:20:24,584 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:24,585 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,585 INFO L142 QuantifierPusher]: treesize reduction 20, result has 58.3 percent of original size [2021-03-26 04:20:24,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:20:24,587 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:24,588 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,589 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:24,589 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,590 INFO L142 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size [2021-03-26 04:20:24,591 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:24,591 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:20:24,593 INFO L147 QuantifierPusher]: treesize reduction 15, result has 21.1 percent of original size 4 [2021-03-26 04:20:24,594 INFO L147 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size 17 [2021-03-26 04:20:24,594 INFO L147 QuantifierPusher]: treesize reduction 40, result has 16.7 percent of original size 8 [2021-03-26 04:20:24,595 INFO L147 QuantifierPusher]: treesize reduction 40, result has 16.7 percent of original size 8 [2021-03-26 04:20:24,595 INFO L142 QuantifierPusher]: treesize reduction 40, result has 16.7 percent of original size [2021-03-26 04:20:24,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:20:24,596 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-03-26 04:20:24,608 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-03-26 04:20:24,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,611 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-26 04:20:24,664 INFO L628 ElimStorePlain]: treesize reduction 28, result has 53.3 percent of original size [2021-03-26 04:20:24,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 04:20:24,666 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-03-26 04:20:24,666 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:85, output treesize:32 [2021-03-26 04:20:24,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 04:20:24,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 04:20:24,694 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-26 04:20:24,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:20:24,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:20:24,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:20:24,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,698 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:20:24,699 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:24,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:24,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:24,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:24,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:20:24,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 04:20:24,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135024284] [2021-03-26 04:20:24,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:20:24,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:20:24,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:20:24,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:20:24,710 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 19 [2021-03-26 04:20:24,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 35 transitions, 199 flow. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:24,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:20:24,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 19 [2021-03-26 04:20:24,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:20:24,836 INFO L129 PetriNetUnfolder]: 34/84 cut-off events. [2021-03-26 04:20:24,837 INFO L130 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2021-03-26 04:20:24,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 84 events. 34/84 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 279 event pairs, 0 based on Foata normal form. 1/63 useless extension candidates. Maximal degree in co-relation 293. Up to 52 conditions per place. [2021-03-26 04:20:24,837 INFO L132 encePairwiseOnDemand]: 12/19 looper letters, 17 selfloop transitions, 29 changer transitions 2/52 dead transitions. [2021-03-26 04:20:24,838 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 52 transitions, 428 flow [2021-03-26 04:20:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 04:20:24,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 04:20:24,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 112 transitions. [2021-03-26 04:20:24,839 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6549707602339181 [2021-03-26 04:20:24,839 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 112 transitions. [2021-03-26 04:20:24,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 112 transitions. [2021-03-26 04:20:24,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:20:24,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 112 transitions. [2021-03-26 04:20:24,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:24,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 19.0) internal successors, (190), 10 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:24,840 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 19.0) internal successors, (190), 10 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:24,840 INFO L185 Difference]: Start difference. First operand has 31 places, 35 transitions, 199 flow. Second operand 9 states and 112 transitions. [2021-03-26 04:20:24,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 52 transitions, 428 flow [2021-03-26 04:20:24,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 52 transitions, 413 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-26 04:20:24,842 INFO L241 Difference]: Finished difference. Result has 39 places, 48 transitions, 382 flow [2021-03-26 04:20:24,843 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=382, PETRI_PLACES=39, PETRI_TRANSITIONS=48} [2021-03-26 04:20:24,843 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 24 predicate places. [2021-03-26 04:20:24,843 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:20:24,843 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 48 transitions, 382 flow [2021-03-26 04:20:24,843 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 48 transitions, 382 flow [2021-03-26 04:20:24,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 48 transitions, 382 flow [2021-03-26 04:20:24,849 INFO L129 PetriNetUnfolder]: 33/77 cut-off events. [2021-03-26 04:20:24,849 INFO L130 PetriNetUnfolder]: For 135/135 co-relation queries the response was YES. [2021-03-26 04:20:24,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 77 events. 33/77 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 237 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 276. Up to 40 conditions per place. [2021-03-26 04:20:24,850 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-26 04:20:24,897 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 04:20:24,897 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:20:24,897 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-26 04:20:24,898 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 48 transitions, 386 flow [2021-03-26 04:20:24,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:24,898 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:20:24,898 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:20:25,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-03-26 04:20:25,112 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:20:25,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:20:25,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1412977038, now seen corresponding path program 5 times [2021-03-26 04:20:25,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:20:25,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890780363] [2021-03-26 04:20:25,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:20:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:20:25,140 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:20:25,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:20:25,482 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 2846 DAG size of output: 51 [2021-03-26 04:20:25,483 INFO L142 QuantifierPusher]: treesize reduction 1311779, result has 0.0 percent of original size [2021-03-26 04:20:25,484 INFO L147 QuantifierPusher]: treesize reduction 17, result has 89.0 percent of original size 138 [2021-03-26 04:20:25,580 INFO L142 QuantifierPusher]: treesize reduction 5, result has 73.7 percent of original size [2021-03-26 04:20:25,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:20:25,587 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 04:20:25,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:20:25,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:25,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890780363] [2021-03-26 04:20:25,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922243275] [2021-03-26 04:20:25,600 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:25,618 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:20:25,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:20:25,619 WARN L261 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-26 04:20:25,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:20:25,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:25,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:25,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:25,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:25,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:25,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:25,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:25,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:25,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:25,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:25,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:25,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:25,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:25,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:25,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:25,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:25,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 278 [2021-03-26 04:20:25,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:25,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 278 [2021-03-26 04:20:26,236 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 2125 DAG size of output: 41 [2021-03-26 04:20:26,236 INFO L142 QuantifierPusher]: treesize reduction 2228143, result has 0.0 percent of original size [2021-03-26 04:20:26,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 04:20:26,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 04:20:26,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,275 INFO L147 QuantifierPusher]: treesize reduction 26, result has 69.4 percent of original size 59 [2021-03-26 04:20:26,276 INFO L142 QuantifierPusher]: treesize reduction 26, result has 69.8 percent of original size [2021-03-26 04:20:26,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:20:26,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-26 04:20:26,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,279 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:26,279 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:20:26,281 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:26,282 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:26,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:26,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:20:26,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:20:26,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:20:26,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:20:26,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-26 04:20:26,305 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 37 [2021-03-26 04:20:26,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,306 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:26,312 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,313 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size [2021-03-26 04:20:26,314 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:26,314 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,315 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:26,316 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:20:26,318 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:26,319 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:20:26,321 INFO L147 QuantifierPusher]: treesize reduction 5, result has 81.5 percent of original size 22 [2021-03-26 04:20:26,321 INFO L147 QuantifierPusher]: treesize reduction 27, result has 30.8 percent of original size 12 [2021-03-26 04:20:26,322 INFO L147 QuantifierPusher]: treesize reduction 27, result has 30.8 percent of original size 12 [2021-03-26 04:20:26,322 INFO L142 QuantifierPusher]: treesize reduction 27, result has 30.8 percent of original size [2021-03-26 04:20:26,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:20:26,323 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-03-26 04:20:26,355 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 19 treesize of output 64 [2021-03-26 04:20:26,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,358 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:20:26,360 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,361 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:20:26,362 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,362 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-03-26 04:20:26,363 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:26,363 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,364 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.9 percent of original size [2021-03-26 04:20:26,365 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:26,366 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:26,368 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:26,368 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:20:26,377 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-03-26 04:20:26,378 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:20:26,378 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,379 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size [2021-03-26 04:20:26,380 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:26,380 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:26,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:26,384 INFO L147 QuantifierPusher]: treesize reduction 18, result has 57.1 percent of original size 24 [2021-03-26 04:20:26,384 INFO L147 QuantifierPusher]: treesize reduction 22, result has 72.8 percent of original size 59 [2021-03-26 04:20:26,385 INFO L147 QuantifierPusher]: treesize reduction 22, result has 72.8 percent of original size 59 [2021-03-26 04:20:26,385 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:26,386 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,387 INFO L142 QuantifierPusher]: treesize reduction 97, result has 44.3 percent of original size [2021-03-26 04:20:26,388 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:26,389 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,389 INFO L142 QuantifierPusher]: treesize reduction 4, result has 91.8 percent of original size [2021-03-26 04:20:26,391 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:26,392 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:20:26,393 INFO L147 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size 8 [2021-03-26 04:20:26,393 INFO L147 QuantifierPusher]: treesize reduction 22, result has 26.7 percent of original size 8 [2021-03-26 04:20:26,394 INFO L147 QuantifierPusher]: treesize reduction 22, result has 26.7 percent of original size 8 [2021-03-26 04:20:26,394 INFO L142 QuantifierPusher]: treesize reduction 22, result has 26.7 percent of original size [2021-03-26 04:20:26,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:20:26,394 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-03-26 04:20:26,400 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-03-26 04:20:26,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,402 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-26 04:20:26,450 INFO L628 ElimStorePlain]: treesize reduction 28, result has 53.3 percent of original size [2021-03-26 04:20:26,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 04:20:26,456 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-03-26 04:20:26,456 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:85, output treesize:32 [2021-03-26 04:20:26,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 04:20:26,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 04:20:26,540 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-26 04:20:26,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:20:26,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:20:26,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:20:26,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,543 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:20:26,544 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:26,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:26,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:26,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:26,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:20:26,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 04:20:26,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786575377] [2021-03-26 04:20:26,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:20:26,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:20:26,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:20:26,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:20:26,555 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 20 [2021-03-26 04:20:26,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 48 transitions, 386 flow. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:26,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:20:26,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 20 [2021-03-26 04:20:26,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:20:26,759 INFO L129 PetriNetUnfolder]: 38/97 cut-off events. [2021-03-26 04:20:26,760 INFO L130 PetriNetUnfolder]: For 212/228 co-relation queries the response was YES. [2021-03-26 04:20:26,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 97 events. 38/97 cut-off events. For 212/228 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 345 event pairs, 0 based on Foata normal form. 14/93 useless extension candidates. Maximal degree in co-relation 426. Up to 50 conditions per place. [2021-03-26 04:20:26,761 INFO L132 encePairwiseOnDemand]: 12/20 looper letters, 14 selfloop transitions, 41 changer transitions 2/61 dead transitions. [2021-03-26 04:20:26,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 61 transitions, 623 flow [2021-03-26 04:20:26,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 04:20:26,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 04:20:26,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 133 transitions. [2021-03-26 04:20:26,762 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6045454545454545 [2021-03-26 04:20:26,762 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 133 transitions. [2021-03-26 04:20:26,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 133 transitions. [2021-03-26 04:20:26,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:20:26,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 133 transitions. [2021-03-26 04:20:26,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:26,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 20.0) internal successors, (240), 12 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:26,763 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 20.0) internal successors, (240), 12 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:26,764 INFO L185 Difference]: Start difference. First operand has 39 places, 48 transitions, 386 flow. Second operand 11 states and 133 transitions. [2021-03-26 04:20:26,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 61 transitions, 623 flow [2021-03-26 04:20:26,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 61 transitions, 562 flow, removed 22 selfloop flow, removed 5 redundant places. [2021-03-26 04:20:26,767 INFO L241 Difference]: Finished difference. Result has 47 places, 58 transitions, 539 flow [2021-03-26 04:20:26,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=539, PETRI_PLACES=47, PETRI_TRANSITIONS=58} [2021-03-26 04:20:26,767 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 32 predicate places. [2021-03-26 04:20:26,767 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:20:26,767 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 58 transitions, 539 flow [2021-03-26 04:20:26,768 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 58 transitions, 539 flow [2021-03-26 04:20:26,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 58 transitions, 539 flow [2021-03-26 04:20:26,775 INFO L129 PetriNetUnfolder]: 38/91 cut-off events. [2021-03-26 04:20:26,775 INFO L130 PetriNetUnfolder]: For 171/171 co-relation queries the response was YES. [2021-03-26 04:20:26,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 91 events. 38/91 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 308 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 391. Up to 49 conditions per place. [2021-03-26 04:20:26,776 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-26 04:20:26,781 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:20:26,781 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:20:26,781 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 04:20:26,781 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 58 transitions, 539 flow [2021-03-26 04:20:26,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:26,782 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:20:26,782 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:20:26,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:26,996 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:20:26,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:20:26,996 INFO L82 PathProgramCache]: Analyzing trace with hash -432068526, now seen corresponding path program 1 times [2021-03-26 04:20:26,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:20:26,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811433477] [2021-03-26 04:20:26,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:20:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:20:27,022 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:20:27,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:20:27,731 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 5579 DAG size of output: 66 [2021-03-26 04:20:27,731 INFO L142 QuantifierPusher]: treesize reduction 2534952, result has 0.0 percent of original size [2021-03-26 04:20:27,733 INFO L147 QuantifierPusher]: treesize reduction 66, result has 77.9 percent of original size 233 [2021-03-26 04:20:28,387 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 5577 DAG size of output: 17 [2021-03-26 04:20:28,388 INFO L142 QuantifierPusher]: treesize reduction 2535221, result has 0.0 percent of original size [2021-03-26 04:20:28,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:20:28,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:28,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811433477] [2021-03-26 04:20:28,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328272672] [2021-03-26 04:20:28,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:20:28,424 WARN L261 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 04:20:28,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:20:28,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:28,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:28,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:28,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:28,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:28,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:28,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:28,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:28,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:20:28,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:20:28,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:20:28,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:20:28,460 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.4 percent of original size [2021-03-26 04:20:28,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:20:28,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:20:28,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:20:28,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:20:28,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:20:28,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:20:28,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:20:28,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:20:28,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 283 [2021-03-26 04:20:28,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:28,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:28,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 283 [2021-03-26 04:20:28,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-03-26 04:20:29,077 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 2125 DAG size of output: 15 [2021-03-26 04:20:29,078 INFO L142 QuantifierPusher]: treesize reduction 2228207, result has 0.0 percent of original size [2021-03-26 04:20:29,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:29,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:20:29,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 04:20:29,086 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-03-26 04:20:29,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,089 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-26 04:20:29,090 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,090 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-26 04:20:29,091 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:3 [2021-03-26 04:20:29,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:29,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:29,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:20:29,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-26 04:20:29,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812873403] [2021-03-26 04:20:29,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:20:29,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:20:29,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:20:29,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:20:29,096 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 20 [2021-03-26 04:20:29,096 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 58 transitions, 539 flow. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:29,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:20:29,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 20 [2021-03-26 04:20:29,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:20:29,172 INFO L129 PetriNetUnfolder]: 36/87 cut-off events. [2021-03-26 04:20:29,172 INFO L130 PetriNetUnfolder]: For 198/212 co-relation queries the response was YES. [2021-03-26 04:20:29,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 87 events. 36/87 cut-off events. For 198/212 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 281 event pairs, 0 based on Foata normal form. 14/88 useless extension candidates. Maximal degree in co-relation 442. Up to 68 conditions per place. [2021-03-26 04:20:29,173 INFO L132 encePairwiseOnDemand]: 13/20 looper letters, 44 selfloop transitions, 8 changer transitions 2/58 dead transitions. [2021-03-26 04:20:29,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 58 transitions, 654 flow [2021-03-26 04:20:29,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:20:29,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:20:29,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 72 transitions. [2021-03-26 04:20:29,174 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-03-26 04:20:29,174 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 72 transitions. [2021-03-26 04:20:29,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 72 transitions. [2021-03-26 04:20:29,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:20:29,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 72 transitions. [2021-03-26 04:20:29,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:29,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:29,175 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:29,175 INFO L185 Difference]: Start difference. First operand has 47 places, 58 transitions, 539 flow. Second operand 6 states and 72 transitions. [2021-03-26 04:20:29,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 58 transitions, 654 flow [2021-03-26 04:20:29,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 58 transitions, 561 flow, removed 35 selfloop flow, removed 6 redundant places. [2021-03-26 04:20:29,179 INFO L241 Difference]: Finished difference. Result has 48 places, 56 transitions, 452 flow [2021-03-26 04:20:29,179 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=452, PETRI_PLACES=48, PETRI_TRANSITIONS=56} [2021-03-26 04:20:29,179 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 33 predicate places. [2021-03-26 04:20:29,179 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:20:29,180 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 56 transitions, 452 flow [2021-03-26 04:20:29,180 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 56 transitions, 452 flow [2021-03-26 04:20:29,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 56 transitions, 452 flow [2021-03-26 04:20:29,186 INFO L129 PetriNetUnfolder]: 36/83 cut-off events. [2021-03-26 04:20:29,187 INFO L130 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2021-03-26 04:20:29,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 83 events. 36/83 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 254 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 338. Up to 44 conditions per place. [2021-03-26 04:20:29,187 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-26 04:20:29,192 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:20:29,192 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:20:29,192 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 04:20:29,193 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 56 transitions, 452 flow [2021-03-26 04:20:29,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:29,193 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:20:29,193 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:20:29,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:29,415 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:20:29,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:20:29,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1396965332, now seen corresponding path program 1 times [2021-03-26 04:20:29,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:20:29,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564623773] [2021-03-26 04:20:29,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:20:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:20:29,437 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:20:29,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:20:30,057 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 2866 DAG size of output: 49 [2021-03-26 04:20:30,057 INFO L142 QuantifierPusher]: treesize reduction 2623474, result has 0.0 percent of original size [2021-03-26 04:20:30,058 INFO L147 QuantifierPusher]: treesize reduction 7, result has 97.4 percent of original size 263 [2021-03-26 04:20:30,166 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 28 [2021-03-26 04:20:31,251 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 5531 DAG size of output: 30 [2021-03-26 04:20:31,252 INFO L142 QuantifierPusher]: treesize reduction 5066323, result has 0.0 percent of original size [2021-03-26 04:20:31,252 INFO L147 QuantifierPusher]: treesize reduction 6, result has 94.6 percent of original size 105 [2021-03-26 04:20:31,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:20:31,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:31,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:31,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564623773] [2021-03-26 04:20:31,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209767248] [2021-03-26 04:20:31,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:20:31,331 WARN L261 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-26 04:20:31,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:20:31,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:31,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:31,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:31,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:31,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:31,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:31,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:31,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:31,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:31,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:31,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:31,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:31,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:31,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:31,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:31,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:31,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:31,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:31,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:31,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:31,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 285 [2021-03-26 04:20:31,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:31,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 04:20:31,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-03-26 04:20:31,954 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 2127 DAG size of output: 25 [2021-03-26 04:20:31,955 INFO L142 QuantifierPusher]: treesize reduction 2228185, result has 0.0 percent of original size [2021-03-26 04:20:31,955 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:31,959 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:31,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:31,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:20:31,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:31,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:31,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:20:31,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:31,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:20:31,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:20:31,979 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-03-26 04:20:31,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,981 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:31,982 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:31,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:31,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,990 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:31,991 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:31,992 INFO L142 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size [2021-03-26 04:20:31,992 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:31,992 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:31,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:31,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:31,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:31,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:31,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:31,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:31,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:31,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:31,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:31,999 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-26 04:20:32,035 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 21 treesize of output 64 [2021-03-26 04:20:32,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:32,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,037 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:20:32,038 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:32,039 INFO L142 QuantifierPusher]: treesize reduction 9, result has 88.2 percent of original size [2021-03-26 04:20:32,040 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:20:32,042 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:32,043 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.3 percent of original size [2021-03-26 04:20:32,043 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:32,044 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:32,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:32,046 INFO L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-03-26 04:20:32,047 INFO L147 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size 35 [2021-03-26 04:20:32,047 INFO L147 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size 35 [2021-03-26 04:20:32,048 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:32,049 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:32,049 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.7 percent of original size [2021-03-26 04:20:32,050 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:32,051 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:32,051 INFO L142 QuantifierPusher]: treesize reduction 4, result has 89.2 percent of original size [2021-03-26 04:20:32,052 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:32,053 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:32,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:20:32,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:20:32,055 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:32,056 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:32,056 INFO L142 QuantifierPusher]: treesize reduction 8, result has 81.8 percent of original size [2021-03-26 04:20:32,057 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:32,057 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:32,058 INFO L142 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size [2021-03-26 04:20:32,059 INFO L147 QuantifierPusher]: treesize reduction 14, result has 22.2 percent of original size 4 [2021-03-26 04:20:32,059 INFO L147 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size 8 [2021-03-26 04:20:32,059 INFO L147 QuantifierPusher]: treesize reduction 22, result has 43.6 percent of original size 17 [2021-03-26 04:20:32,060 INFO L147 QuantifierPusher]: treesize reduction 22, result has 43.6 percent of original size 17 [2021-03-26 04:20:32,060 INFO L142 QuantifierPusher]: treesize reduction 22, result has 43.6 percent of original size [2021-03-26 04:20:32,061 INFO L147 QuantifierPusher]: treesize reduction 5, result has 70.6 percent of original size 12 [2021-03-26 04:20:32,061 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 3 xjuncts. [2021-03-26 04:20:32,081 INFO L628 ElimStorePlain]: treesize reduction 23, result has 43.9 percent of original size [2021-03-26 04:20:32,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:20:32,082 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-03-26 04:20:32,082 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:59, output treesize:18 [2021-03-26 04:20:32,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:20:32,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:20:32,096 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 04:20:32,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:32,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:32,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:32,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:20:32,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,113 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:32,114 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:32,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:32,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:32,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:32,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:32,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:32,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:32,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:32,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:32,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:32,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:32,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:32,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:32,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:20:32,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 04:20:32,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018567321] [2021-03-26 04:20:32,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:20:32,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:20:32,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:20:32,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:20:32,124 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 20 [2021-03-26 04:20:32,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 56 transitions, 452 flow. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:32,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:20:32,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 20 [2021-03-26 04:20:32,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:20:32,221 INFO L129 PetriNetUnfolder]: 44/105 cut-off events. [2021-03-26 04:20:32,221 INFO L130 PetriNetUnfolder]: For 204/218 co-relation queries the response was YES. [2021-03-26 04:20:32,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 105 events. 44/105 cut-off events. For 204/218 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 366 event pairs, 0 based on Foata normal form. 13/101 useless extension candidates. Maximal degree in co-relation 525. Up to 72 conditions per place. [2021-03-26 04:20:32,222 INFO L132 encePairwiseOnDemand]: 12/20 looper letters, 36 selfloop transitions, 29 changer transitions 0/69 dead transitions. [2021-03-26 04:20:32,222 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 69 transitions, 732 flow [2021-03-26 04:20:32,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 04:20:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 04:20:32,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 98 transitions. [2021-03-26 04:20:32,223 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6125 [2021-03-26 04:20:32,223 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 98 transitions. [2021-03-26 04:20:32,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 98 transitions. [2021-03-26 04:20:32,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:20:32,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 98 transitions. [2021-03-26 04:20:32,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:32,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 20.0) internal successors, (180), 9 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:32,224 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 20.0) internal successors, (180), 9 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:32,224 INFO L185 Difference]: Start difference. First operand has 46 places, 56 transitions, 452 flow. Second operand 8 states and 98 transitions. [2021-03-26 04:20:32,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 69 transitions, 732 flow [2021-03-26 04:20:32,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 69 transitions, 692 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-03-26 04:20:32,228 INFO L241 Difference]: Finished difference. Result has 51 places, 67 transitions, 635 flow [2021-03-26 04:20:32,229 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=635, PETRI_PLACES=51, PETRI_TRANSITIONS=67} [2021-03-26 04:20:32,229 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 36 predicate places. [2021-03-26 04:20:32,229 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:20:32,229 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 67 transitions, 635 flow [2021-03-26 04:20:32,229 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 67 transitions, 635 flow [2021-03-26 04:20:32,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 67 transitions, 635 flow [2021-03-26 04:20:32,239 INFO L129 PetriNetUnfolder]: 44/105 cut-off events. [2021-03-26 04:20:32,240 INFO L130 PetriNetUnfolder]: For 256/256 co-relation queries the response was YES. [2021-03-26 04:20:32,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 105 events. 44/105 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 381 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 472. Up to 54 conditions per place. [2021-03-26 04:20:32,241 INFO L142 LiptonReduction]: Number of co-enabled transitions 52 [2021-03-26 04:20:32,288 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 04:20:32,289 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:20:32,289 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-03-26 04:20:32,289 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 67 transitions, 641 flow [2021-03-26 04:20:32,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:32,289 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:20:32,289 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:20:32,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-03-26 04:20:32,490 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:20:32,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:20:32,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1600735772, now seen corresponding path program 2 times [2021-03-26 04:20:32,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:20:32,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061474658] [2021-03-26 04:20:32,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:20:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:20:32,513 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:20:32,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:20:32,851 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 2845 DAG size of output: 44 [2021-03-26 04:20:32,851 INFO L142 QuantifierPusher]: treesize reduction 1311746, result has 0.0 percent of original size [2021-03-26 04:20:32,852 INFO L147 QuantifierPusher]: treesize reduction 7, result has 95.0 percent of original size 134 [2021-03-26 04:20:33,506 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 5510 DAG size of output: 25 [2021-03-26 04:20:33,506 INFO L142 QuantifierPusher]: treesize reduction 2533176, result has 0.0 percent of original size [2021-03-26 04:20:33,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:20:34,073 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 5508 DAG size of output: 14 [2021-03-26 04:20:34,073 INFO L142 QuantifierPusher]: treesize reduction 2533212, result has 0.0 percent of original size [2021-03-26 04:20:34,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:20:34,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:34,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061474658] [2021-03-26 04:20:34,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616677239] [2021-03-26 04:20:34,097 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:34,116 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:20:34,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:20:34,119 WARN L261 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-26 04:20:34,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:20:34,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:34,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:34,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:34,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:34,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:34,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:34,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:34,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:34,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:34,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:34,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:34,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:34,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:34,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:34,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:34,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:34,166 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size [2021-03-26 04:20:34,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:20:34,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:34,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:20:34,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:20:34,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:34,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:34,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:34,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:34,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:34,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:20:34,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 285 [2021-03-26 04:20:34,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:34,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 285 [2021-03-26 04:20:34,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 286 [2021-03-26 04:20:34,801 WARN L205 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 2125 DAG size of output: 16 [2021-03-26 04:20:34,802 INFO L142 QuantifierPusher]: treesize reduction 2228205, result has 0.0 percent of original size [2021-03-26 04:20:34,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:34,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:34,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:20:34,816 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-03-26 04:20:34,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,818 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:20:34,818 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:34,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:34,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,821 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:20:34,821 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:34,822 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-03-26 04:20:34,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:34,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:34,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:34,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:34,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:20:34,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,827 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-26 04:20:34,828 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,829 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-26 04:20:34,829 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:3 [2021-03-26 04:20:34,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:34,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:34,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:20:34,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 04:20:34,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146758224] [2021-03-26 04:20:34,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:20:34,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:20:34,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:20:34,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:20:34,840 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 21 [2021-03-26 04:20:34,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 67 transitions, 641 flow. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:34,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:20:34,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 21 [2021-03-26 04:20:34,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:20:34,938 INFO L129 PetriNetUnfolder]: 42/101 cut-off events. [2021-03-26 04:20:34,938 INFO L130 PetriNetUnfolder]: For 251/266 co-relation queries the response was YES. [2021-03-26 04:20:34,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 101 events. 42/101 cut-off events. For 251/266 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 356 event pairs, 0 based on Foata normal form. 11/96 useless extension candidates. Maximal degree in co-relation 533. Up to 78 conditions per place. [2021-03-26 04:20:34,939 INFO L132 encePairwiseOnDemand]: 13/21 looper letters, 50 selfloop transitions, 11 changer transitions 2/67 dead transitions. [2021-03-26 04:20:34,939 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 67 transitions, 776 flow [2021-03-26 04:20:34,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:20:34,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:20:34,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 84 transitions. [2021-03-26 04:20:34,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2021-03-26 04:20:34,940 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 84 transitions. [2021-03-26 04:20:34,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 84 transitions. [2021-03-26 04:20:34,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:20:34,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 84 transitions. [2021-03-26 04:20:34,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:34,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:34,941 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:34,941 INFO L185 Difference]: Start difference. First operand has 51 places, 67 transitions, 641 flow. Second operand 7 states and 84 transitions. [2021-03-26 04:20:34,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 67 transitions, 776 flow [2021-03-26 04:20:34,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 67 transitions, 735 flow, removed 15 selfloop flow, removed 3 redundant places. [2021-03-26 04:20:34,946 INFO L241 Difference]: Finished difference. Result has 56 places, 65 transitions, 610 flow [2021-03-26 04:20:34,946 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=610, PETRI_PLACES=56, PETRI_TRANSITIONS=65} [2021-03-26 04:20:34,946 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 41 predicate places. [2021-03-26 04:20:34,946 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:20:34,946 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 65 transitions, 610 flow [2021-03-26 04:20:34,946 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 65 transitions, 610 flow [2021-03-26 04:20:34,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 65 transitions, 610 flow [2021-03-26 04:20:34,954 INFO L129 PetriNetUnfolder]: 42/97 cut-off events. [2021-03-26 04:20:34,954 INFO L130 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2021-03-26 04:20:34,954 INFO L84 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 97 events. 42/97 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 323 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 456. Up to 51 conditions per place. [2021-03-26 04:20:34,955 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-26 04:20:34,960 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:20:34,961 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:20:34,961 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 04:20:34,961 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 65 transitions, 610 flow [2021-03-26 04:20:34,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:20:34,961 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:20:34,961 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:20:35,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:35,184 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:20:35,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:20:35,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1229694665, now seen corresponding path program 1 times [2021-03-26 04:20:35,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:20:35,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955069212] [2021-03-26 04:20:35,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:20:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:20:35,208 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:20:35,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:20:35,520 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 2844 DAG size of output: 48 [2021-03-26 04:20:35,522 INFO L142 QuantifierPusher]: treesize reduction 1311729, result has 0.0 percent of original size [2021-03-26 04:20:35,523 INFO L147 QuantifierPusher]: treesize reduction 24, result has 84.3 percent of original size 129 [2021-03-26 04:20:36,133 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 5510 DAG size of output: 14 [2021-03-26 04:20:36,134 INFO L142 QuantifierPusher]: treesize reduction 2533210, result has 0.0 percent of original size [2021-03-26 04:20:36,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:20:36,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:20:36,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:20:36,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955069212] [2021-03-26 04:20:36,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014900116] [2021-03-26 04:20:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:20:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:20:36,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 16 conjunts are in the unsatisfiable core [2021-03-26 04:20:36,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:20:36,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:20:36,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:36,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:36,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:36,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:20:36,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:36,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:20:36,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:36,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:36,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:20:36,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:20:36,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:20:36,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:20:36,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:36,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-03-26 04:20:36,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 381 [2021-03-26 04:20:36,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:36,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:20:36,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:20:36,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-03-26 04:20:36,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 381 [2021-03-26 04:20:36,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 382 [2021-03-26 04:21:12,229 WARN L205 SmtUtils]: Spent 35.81 s on a formula simplification. DAG size of input: 29566 DAG size of output: 59 [2021-03-26 04:21:12,229 INFO L142 QuantifierPusher]: treesize reduction 175898459, result has 0.0 percent of original size [2021-03-26 04:21:12,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,240 INFO L142 QuantifierPusher]: treesize reduction 68, result has 58.5 percent of original size [2021-03-26 04:21:12,240 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:21:12,243 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:21:12,245 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:21:12,246 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,246 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:21:12,247 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:21:12,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:21:12,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 04:21:12,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:21:12,259 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:21:12,259 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:21:12,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:21:12,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:21:12,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 04:21:12,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 04:21:12,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-26 04:21:12,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-03-26 04:21:12,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 04:21:12,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 04:21:12,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,268 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:21:12,268 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,270 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:21:12,270 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,271 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.5 percent of original size [2021-03-26 04:21:12,271 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:21:12,272 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,273 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-26 04:21:12,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:21:12,274 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:21:12,275 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,276 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.7 percent of original size [2021-03-26 04:21:12,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:21:12,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 04:21:12,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:21:12,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:21:12,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,279 INFO L142 QuantifierPusher]: treesize reduction 41, result has 28.1 percent of original size [2021-03-26 04:21:12,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:21:12,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:21:12,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:21:12,302 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-03-26 04:21:12,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,305 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:21:12,306 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,307 INFO L142 QuantifierPusher]: treesize reduction 10, result has 86.8 percent of original size [2021-03-26 04:21:12,307 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:21:12,308 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,309 INFO L142 QuantifierPusher]: treesize reduction 5, result has 91.7 percent of original size [2021-03-26 04:21:12,309 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:21:12,310 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,311 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.3 percent of original size [2021-03-26 04:21:12,312 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:21:12,315 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,318 INFO L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-03-26 04:21:12,318 INFO L147 QuantifierPusher]: treesize reduction 26, result has 31.6 percent of original size 12 [2021-03-26 04:21:12,319 INFO L147 QuantifierPusher]: treesize reduction 39, result has 41.8 percent of original size 28 [2021-03-26 04:21:12,320 INFO L147 QuantifierPusher]: treesize reduction 39, result has 41.8 percent of original size 28 [2021-03-26 04:21:12,321 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:21:12,322 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,323 INFO L142 QuantifierPusher]: treesize reduction 85, result has 41.8 percent of original size [2021-03-26 04:21:12,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,324 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:21:12,324 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,328 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-26 04:21:12,330 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,330 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-26 04:21:12,330 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-03-26 04:21:12,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:21:12,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:21:12,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-26 04:21:12,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041786305] [2021-03-26 04:21:12,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:21:12,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:21:12,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:21:12,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:21:12,339 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 21 [2021-03-26 04:21:12,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 65 transitions, 610 flow. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:21:12,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:21:12,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 21 [2021-03-26 04:21:12,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:21:12,412 INFO L129 PetriNetUnfolder]: 45/109 cut-off events. [2021-03-26 04:21:12,412 INFO L130 PetriNetUnfolder]: For 279/291 co-relation queries the response was YES. [2021-03-26 04:21:12,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 109 events. 45/109 cut-off events. For 279/291 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 403 event pairs, 0 based on Foata normal form. 8/100 useless extension candidates. Maximal degree in co-relation 607. Up to 82 conditions per place. [2021-03-26 04:21:12,414 INFO L132 encePairwiseOnDemand]: 14/21 looper letters, 53 selfloop transitions, 14 changer transitions 2/73 dead transitions. [2021-03-26 04:21:12,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 73 transitions, 872 flow [2021-03-26 04:21:12,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:21:12,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:21:12,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 76 transitions. [2021-03-26 04:21:12,415 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2021-03-26 04:21:12,415 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 76 transitions. [2021-03-26 04:21:12,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 76 transitions. [2021-03-26 04:21:12,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:21:12,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 76 transitions. [2021-03-26 04:21:12,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:21:12,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:21:12,416 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:21:12,416 INFO L185 Difference]: Start difference. First operand has 54 places, 65 transitions, 610 flow. Second operand 6 states and 76 transitions. [2021-03-26 04:21:12,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 73 transitions, 872 flow [2021-03-26 04:21:12,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 822 flow, removed 14 selfloop flow, removed 5 redundant places. [2021-03-26 04:21:12,423 INFO L241 Difference]: Finished difference. Result has 56 places, 70 transitions, 677 flow [2021-03-26 04:21:12,424 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=677, PETRI_PLACES=56, PETRI_TRANSITIONS=70} [2021-03-26 04:21:12,424 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 41 predicate places. [2021-03-26 04:21:12,424 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:21:12,424 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 70 transitions, 677 flow [2021-03-26 04:21:12,424 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 70 transitions, 677 flow [2021-03-26 04:21:12,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 70 transitions, 677 flow [2021-03-26 04:21:12,432 INFO L129 PetriNetUnfolder]: 44/106 cut-off events. [2021-03-26 04:21:12,432 INFO L130 PetriNetUnfolder]: For 398/398 co-relation queries the response was YES. [2021-03-26 04:21:12,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 556 conditions, 106 events. 44/106 cut-off events. For 398/398 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 383 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 500. Up to 53 conditions per place. [2021-03-26 04:21:12,433 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 04:21:12,482 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 04:21:12,482 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:21:12,482 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-26 04:21:12,482 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 70 transitions, 684 flow [2021-03-26 04:21:12,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:21:12,483 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:21:12,483 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:21:12,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:21:12,704 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:21:12,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:21:12,704 INFO L82 PathProgramCache]: Analyzing trace with hash 428078437, now seen corresponding path program 1 times [2021-03-26 04:21:12,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:21:12,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982375018] [2021-03-26 04:21:12,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:21:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:21:12,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:21:12,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:21:12,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:21:12,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:21:12,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982375018] [2021-03-26 04:21:12,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908844175] [2021-03-26 04:21:12,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:21:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:21:12,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 04:21:12,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:21:12,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:12,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:21:12,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:21:12,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:21:12,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:21:12,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:21:12,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:21:12,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:21:12,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:21:12,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:12,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:21:12,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:21:12,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:21:12,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:21:12,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:21:12,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:21:12,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:21:12,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:21:12,803 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-26 04:21:12,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:12,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:21:12,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:21:12,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:21:12,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-26 04:21:12,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527013321] [2021-03-26 04:21:12,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 04:21:12,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:21:12,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 04:21:12,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:21:12,809 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-03-26 04:21:12,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 70 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:21:12,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:21:12,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-03-26 04:21:12,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:21:12,886 INFO L129 PetriNetUnfolder]: 47/123 cut-off events. [2021-03-26 04:21:12,886 INFO L130 PetriNetUnfolder]: For 509/536 co-relation queries the response was YES. [2021-03-26 04:21:12,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 123 events. 47/123 cut-off events. For 509/536 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 473 event pairs, 0 based on Foata normal form. 21/124 useless extension candidates. Maximal degree in co-relation 695. Up to 64 conditions per place. [2021-03-26 04:21:12,889 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 44 selfloop transitions, 27 changer transitions 1/77 dead transitions. [2021-03-26 04:21:12,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 77 transitions, 952 flow [2021-03-26 04:21:12,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:21:12,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:21:12,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2021-03-26 04:21:12,890 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2021-03-26 04:21:12,890 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 86 transitions. [2021-03-26 04:21:12,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 86 transitions. [2021-03-26 04:21:12,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:21:12,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 86 transitions. [2021-03-26 04:21:12,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:21:12,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:21:12,891 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:21:12,891 INFO L185 Difference]: Start difference. First operand has 56 places, 70 transitions, 684 flow. Second operand 6 states and 86 transitions. [2021-03-26 04:21:12,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 77 transitions, 952 flow [2021-03-26 04:21:12,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 77 transitions, 896 flow, removed 23 selfloop flow, removed 2 redundant places. [2021-03-26 04:21:12,901 INFO L241 Difference]: Finished difference. Result has 59 places, 69 transitions, 744 flow [2021-03-26 04:21:12,901 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=744, PETRI_PLACES=59, PETRI_TRANSITIONS=69} [2021-03-26 04:21:12,901 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 44 predicate places. [2021-03-26 04:21:12,901 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:21:12,901 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 69 transitions, 744 flow [2021-03-26 04:21:12,901 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 69 transitions, 744 flow [2021-03-26 04:21:12,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 69 transitions, 744 flow [2021-03-26 04:21:12,914 INFO L129 PetriNetUnfolder]: 47/122 cut-off events. [2021-03-26 04:21:12,914 INFO L130 PetriNetUnfolder]: For 632/632 co-relation queries the response was YES. [2021-03-26 04:21:12,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 122 events. 47/122 cut-off events. For 632/632 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 483 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 647. Up to 64 conditions per place. [2021-03-26 04:21:12,916 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-26 04:21:12,923 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:21:12,923 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:21:12,923 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-26 04:21:12,925 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 69 transitions, 744 flow [2021-03-26 04:21:12,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:21:12,925 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:21:12,925 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:21:13,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2021-03-26 04:21:13,132 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:21:13,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:21:13,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1562162225, now seen corresponding path program 2 times [2021-03-26 04:21:13,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:21:13,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400013340] [2021-03-26 04:21:13,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:21:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:21:13,146 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:21:13,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:21:13,478 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 2844 DAG size of output: 48 [2021-03-26 04:21:13,478 INFO L142 QuantifierPusher]: treesize reduction 1311729, result has 0.0 percent of original size [2021-03-26 04:21:13,479 INFO L147 QuantifierPusher]: treesize reduction 24, result has 84.3 percent of original size 129 [2021-03-26 04:21:13,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:21:13,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:21:13,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:21:13,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400013340] [2021-03-26 04:21:13,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275666388] [2021-03-26 04:21:13,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:21:13,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:21:13,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:21:13,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 16 conjunts are in the unsatisfiable core [2021-03-26 04:21:13,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:21:13,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:21:13,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:21:13,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:21:13,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:21:13,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:21:13,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:13,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-03-26 04:21:13,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 379 [2021-03-26 04:21:13,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:21:13,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:21:13,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-03-26 04:21:13,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 379 [2021-03-26 04:22:22,883 WARN L205 SmtUtils]: Spent 1.15 m on a formula simplification. DAG size of input: 7792 DAG size of output: 56 [2021-03-26 04:22:22,884 INFO L142 QuantifierPusher]: treesize reduction 352141175, result has 0.0 percent of original size [2021-03-26 04:22:22,884 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:22:22,886 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,888 INFO L142 QuantifierPusher]: treesize reduction 32, result has 75.6 percent of original size [2021-03-26 04:22:22,888 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:22:22,896 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,896 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size [2021-03-26 04:22:22,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:22:22,899 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:22:22,901 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,902 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.4 percent of original size [2021-03-26 04:22:22,902 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:22:22,905 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,906 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.7 percent of original size [2021-03-26 04:22:22,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:22:22,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:22:22,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:22:22,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 04:22:22,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 04:22:22,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:22:22,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 04:22:22,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:22:22,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 04:22:22,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 04:22:22,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,951 INFO L142 QuantifierPusher]: treesize reduction 41, result has 28.1 percent of original size [2021-03-26 04:22:22,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:22:22,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:22:22,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:22:22,971 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-03-26 04:22:22,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,974 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:22:22,974 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,975 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-03-26 04:22:22,975 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:22:22,976 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,977 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.1 percent of original size [2021-03-26 04:22:22,977 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:22:22,977 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,978 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size [2021-03-26 04:22:22,978 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:22:22,979 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,980 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:22:22,980 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:22:22,987 INFO L147 QuantifierPusher]: treesize reduction 5, result has 81.5 percent of original size 22 [2021-03-26 04:22:22,987 INFO L147 QuantifierPusher]: treesize reduction 10, result has 79.6 percent of original size 39 [2021-03-26 04:22:22,988 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:22:22,989 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,990 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:22:22,990 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:22:22,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:22:22,993 INFO L147 QuantifierPusher]: treesize reduction 17, result has 77.9 percent of original size 60 [2021-03-26 04:22:22,994 INFO L147 QuantifierPusher]: treesize reduction 17, result has 82.5 percent of original size 80 [2021-03-26 04:22:22,995 INFO L147 QuantifierPusher]: treesize reduction 17, result has 82.5 percent of original size 80 [2021-03-26 04:22:22,995 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:22:22,996 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,997 INFO L142 QuantifierPusher]: treesize reduction 94, result has 54.4 percent of original size [2021-03-26 04:22:22,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:22,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:22,999 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:22:23,000 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:23,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:23,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,005 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-26 04:22:23,006 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,006 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-26 04:22:23,007 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-03-26 04:22:23,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:23,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:22:23,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-26 04:22:23,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130022559] [2021-03-26 04:22:23,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:22:23,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:22:23,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:22:23,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:22:23,016 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 22 [2021-03-26 04:22:23,016 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 69 transitions, 744 flow. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:23,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:22:23,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 22 [2021-03-26 04:22:23,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:22:23,103 INFO L129 PetriNetUnfolder]: 46/129 cut-off events. [2021-03-26 04:22:23,103 INFO L130 PetriNetUnfolder]: For 755/845 co-relation queries the response was YES. [2021-03-26 04:22:23,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 129 events. 46/129 cut-off events. For 755/845 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 526 event pairs, 0 based on Foata normal form. 28/151 useless extension candidates. Maximal degree in co-relation 765. Up to 85 conditions per place. [2021-03-26 04:22:23,104 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 45 selfloop transitions, 25 changer transitions 2/76 dead transitions. [2021-03-26 04:22:23,104 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 76 transitions, 987 flow [2021-03-26 04:22:23,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 04:22:23,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 04:22:23,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 95 transitions. [2021-03-26 04:22:23,105 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5397727272727273 [2021-03-26 04:22:23,105 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 95 transitions. [2021-03-26 04:22:23,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 95 transitions. [2021-03-26 04:22:23,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:22:23,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 95 transitions. [2021-03-26 04:22:23,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:23,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:23,106 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:23,106 INFO L185 Difference]: Start difference. First operand has 59 places, 69 transitions, 744 flow. Second operand 8 states and 95 transitions. [2021-03-26 04:22:23,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 76 transitions, 987 flow [2021-03-26 04:22:23,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 76 transitions, 974 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 04:22:23,113 INFO L241 Difference]: Finished difference. Result has 68 places, 73 transitions, 862 flow [2021-03-26 04:22:23,113 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=862, PETRI_PLACES=68, PETRI_TRANSITIONS=73} [2021-03-26 04:22:23,113 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 53 predicate places. [2021-03-26 04:22:23,113 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:22:23,114 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 73 transitions, 862 flow [2021-03-26 04:22:23,114 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 73 transitions, 862 flow [2021-03-26 04:22:23,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 73 transitions, 862 flow [2021-03-26 04:22:23,126 INFO L129 PetriNetUnfolder]: 46/123 cut-off events. [2021-03-26 04:22:23,126 INFO L130 PetriNetUnfolder]: For 855/855 co-relation queries the response was YES. [2021-03-26 04:22:23,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 123 events. 46/123 cut-off events. For 855/855 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 499 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 730. Up to 65 conditions per place. [2021-03-26 04:22:23,127 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-26 04:22:23,181 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:22:23,181 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:22:23,181 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-26 04:22:23,182 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 72 transitions, 850 flow [2021-03-26 04:22:23,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:23,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:22:23,182 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:22:23,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:23,404 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:22:23,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:22:23,405 INFO L82 PathProgramCache]: Analyzing trace with hash 2088655338, now seen corresponding path program 1 times [2021-03-26 04:22:23,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:22:23,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971364385] [2021-03-26 04:22:23,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:22:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:23,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:22:23,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:23,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971364385] [2021-03-26 04:22:23,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019066159] [2021-03-26 04:22:23,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:23,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 04:22:23,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:22:23,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:23,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:23,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:23,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:23,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:23,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:23,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:23,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:23,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:23,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:23,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:23,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:23,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,486 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-03-26 04:22:23,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:23,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 04:22:23,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-03-26 04:22:23,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709959281] [2021-03-26 04:22:23,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:22:23,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:22:23,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:22:23,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:22:23,497 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 23 [2021-03-26 04:22:23,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 72 transitions, 850 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:23,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:22:23,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 23 [2021-03-26 04:22:23,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:22:23,555 INFO L129 PetriNetUnfolder]: 43/125 cut-off events. [2021-03-26 04:22:23,555 INFO L130 PetriNetUnfolder]: For 825/849 co-relation queries the response was YES. [2021-03-26 04:22:23,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 125 events. 43/125 cut-off events. For 825/849 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 518 event pairs, 0 based on Foata normal form. 5/125 useless extension candidates. Maximal degree in co-relation 825. Up to 80 conditions per place. [2021-03-26 04:22:23,557 INFO L132 encePairwiseOnDemand]: 18/23 looper letters, 58 selfloop transitions, 16 changer transitions 0/79 dead transitions. [2021-03-26 04:22:23,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 79 transitions, 1156 flow [2021-03-26 04:22:23,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:22:23,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:22:23,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2021-03-26 04:22:23,559 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6695652173913044 [2021-03-26 04:22:23,559 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 77 transitions. [2021-03-26 04:22:23,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 77 transitions. [2021-03-26 04:22:23,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:22:23,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 77 transitions. [2021-03-26 04:22:23,559 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) [2021-03-26 04:22:23,559 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) [2021-03-26 04:22:23,559 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) [2021-03-26 04:22:23,560 INFO L185 Difference]: Start difference. First operand has 66 places, 72 transitions, 850 flow. Second operand 5 states and 77 transitions. [2021-03-26 04:22:23,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 79 transitions, 1156 flow [2021-03-26 04:22:23,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 79 transitions, 1100 flow, removed 20 selfloop flow, removed 6 redundant places. [2021-03-26 04:22:23,571 INFO L241 Difference]: Finished difference. Result has 65 places, 74 transitions, 880 flow [2021-03-26 04:22:23,571 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=880, PETRI_PLACES=65, PETRI_TRANSITIONS=74} [2021-03-26 04:22:23,571 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 50 predicate places. [2021-03-26 04:22:23,571 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:22:23,571 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 74 transitions, 880 flow [2021-03-26 04:22:23,572 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 74 transitions, 880 flow [2021-03-26 04:22:23,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 74 transitions, 880 flow [2021-03-26 04:22:23,587 INFO L129 PetriNetUnfolder]: 43/125 cut-off events. [2021-03-26 04:22:23,588 INFO L130 PetriNetUnfolder]: For 779/781 co-relation queries the response was YES. [2021-03-26 04:22:23,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 785 conditions, 125 events. 43/125 cut-off events. For 779/781 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 536 event pairs, 0 based on Foata normal form. 2/123 useless extension candidates. Maximal degree in co-relation 743. Up to 62 conditions per place. [2021-03-26 04:22:23,589 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 04:22:23,601 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:22:23,602 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:22:23,602 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 04:22:23,606 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 74 transitions, 880 flow [2021-03-26 04:22:23,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:23,606 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:22:23,606 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:22:23,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2021-03-26 04:22:23,829 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:22:23,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:22:23,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1577862082, now seen corresponding path program 1 times [2021-03-26 04:22:23,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:22:23,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856113588] [2021-03-26 04:22:23,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:22:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:23,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:22:23,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:23,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856113588] [2021-03-26 04:22:23,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464257248] [2021-03-26 04:22:23,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:23,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 04:22:23,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:22:23,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:23,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:23,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:23,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:23,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:23,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:23,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:23,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,885 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 04:22:23,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:23,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:22:23,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:22:23,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:23,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:22:23,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:22:23,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:23,891 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:22:23,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:23,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:23,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:23,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:22:23,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-26 04:22:23,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079299260] [2021-03-26 04:22:23,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 04:22:23,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:22:23,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 04:22:23,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:22:23,913 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 23 [2021-03-26 04:22:23,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 74 transitions, 880 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:23,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:22:23,914 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 23 [2021-03-26 04:22:23,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:22:23,977 INFO L129 PetriNetUnfolder]: 42/124 cut-off events. [2021-03-26 04:22:23,977 INFO L130 PetriNetUnfolder]: For 833/927 co-relation queries the response was YES. [2021-03-26 04:22:23,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 874 conditions, 124 events. 42/124 cut-off events. For 833/927 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 511 event pairs, 0 based on Foata normal form. 30/150 useless extension candidates. Maximal degree in co-relation 833. Up to 62 conditions per place. [2021-03-26 04:22:23,978 INFO L132 encePairwiseOnDemand]: 14/23 looper letters, 51 selfloop transitions, 22 changer transitions 1/79 dead transitions. [2021-03-26 04:22:23,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 79 transitions, 1150 flow [2021-03-26 04:22:23,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:22:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:22:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 101 transitions. [2021-03-26 04:22:23,979 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6273291925465838 [2021-03-26 04:22:23,979 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 101 transitions. [2021-03-26 04:22:23,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 101 transitions. [2021-03-26 04:22:23,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:22:23,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 101 transitions. [2021-03-26 04:22:23,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:23,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:23,980 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:23,980 INFO L185 Difference]: Start difference. First operand has 65 places, 74 transitions, 880 flow. Second operand 7 states and 101 transitions. [2021-03-26 04:22:23,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 79 transitions, 1150 flow [2021-03-26 04:22:23,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 79 transitions, 1111 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-26 04:22:23,988 INFO L241 Difference]: Finished difference. Result has 68 places, 74 transitions, 923 flow [2021-03-26 04:22:23,988 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=923, PETRI_PLACES=68, PETRI_TRANSITIONS=74} [2021-03-26 04:22:23,988 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 53 predicate places. [2021-03-26 04:22:23,988 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:22:23,988 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 74 transitions, 923 flow [2021-03-26 04:22:23,988 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 74 transitions, 923 flow [2021-03-26 04:22:23,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 74 transitions, 923 flow [2021-03-26 04:22:24,000 INFO L129 PetriNetUnfolder]: 43/120 cut-off events. [2021-03-26 04:22:24,000 INFO L130 PetriNetUnfolder]: For 806/806 co-relation queries the response was YES. [2021-03-26 04:22:24,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 120 events. 43/120 cut-off events. For 806/806 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 489 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 748. Up to 62 conditions per place. [2021-03-26 04:22:24,001 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 04:22:24,004 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:22:24,004 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:22:24,004 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 04:22:24,005 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 74 transitions, 923 flow [2021-03-26 04:22:24,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:24,005 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:22:24,005 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:22:24,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:24,220 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:22:24,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:22:24,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1511531172, now seen corresponding path program 3 times [2021-03-26 04:22:24,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:22:24,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836985391] [2021-03-26 04:22:24,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:22:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:24,252 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:22:24,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:22:24,596 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 2845 DAG size of output: 44 [2021-03-26 04:22:24,596 INFO L142 QuantifierPusher]: treesize reduction 1311746, result has 0.0 percent of original size [2021-03-26 04:22:24,597 INFO L147 QuantifierPusher]: treesize reduction 7, result has 95.0 percent of original size 134 [2021-03-26 04:22:24,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:22:24,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:24,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:24,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:24,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836985391] [2021-03-26 04:22:24,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979193911] [2021-03-26 04:22:24,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:24,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 04:22:24,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:22:24,689 WARN L261 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-26 04:22:24,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:22:24,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:24,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:24,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:24,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:24,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:24,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:24,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:24,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:24,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:22:24,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:22:24,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:22:24,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:22:24,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:22:24,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:22:24,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:22:24,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:22:24,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:24,717 INFO L147 QuantifierPusher]: treesize reduction 2, result has 99.6 percent of original size 444 [2021-03-26 04:22:24,717 INFO L142 QuantifierPusher]: treesize reduction 2, result has 99.6 percent of original size [2021-03-26 04:22:24,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-03-26 04:22:25,280 WARN L205 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 1384 DAG size of output: 46 [2021-03-26 04:22:25,281 INFO L142 QuantifierPusher]: treesize reduction 2781079, result has 0.0 percent of original size [2021-03-26 04:22:25,281 INFO L147 QuantifierPusher]: treesize reduction 6, result has 94.6 percent of original size 106 [2021-03-26 04:22:25,282 INFO L142 QuantifierPusher]: treesize reduction 6, result has 94.6 percent of original size [2021-03-26 04:22:25,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 04:22:25,318 INFO L142 QuantifierPusher]: treesize reduction 56, result has 53.3 percent of original size [2021-03-26 04:22:25,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:22:25,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:22:25,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:22:25,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,321 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:22:25,322 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:22:25,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:22:25,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:22:25,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:22:25,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:22:25,343 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-03-26 04:22:25,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,344 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:22:25,345 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,346 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:22:25,347 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,348 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-03-26 04:22:25,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,351 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-26 04:22:25,370 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 21 treesize of output 64 [2021-03-26 04:22:25,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,372 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:22:25,373 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,374 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.7 percent of original size [2021-03-26 04:22:25,374 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:22:25,376 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,377 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-26 04:22:25,377 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:22:25,377 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,378 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size [2021-03-26 04:22:25,378 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:22:25,379 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 04:22:25,382 INFO L147 QuantifierPusher]: treesize reduction 12, result has 74.5 percent of original size 35 [2021-03-26 04:22:25,383 INFO L147 QuantifierPusher]: treesize reduction 12, result has 74.5 percent of original size 35 [2021-03-26 04:22:25,383 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:22:25,384 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,384 INFO L142 QuantifierPusher]: treesize reduction 12, result has 81.5 percent of original size [2021-03-26 04:22:25,385 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:22:25,385 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,385 INFO L142 QuantifierPusher]: treesize reduction 13, result has 78.3 percent of original size [2021-03-26 04:22:25,386 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:22:25,386 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,387 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:22:25,387 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,388 INFO L142 QuantifierPusher]: treesize reduction 4, result has 88.9 percent of original size [2021-03-26 04:22:25,388 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:22:25,389 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:25,391 INFO L147 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size 13 [2021-03-26 04:22:25,391 INFO L147 QuantifierPusher]: treesize reduction 19, result has 48.6 percent of original size 18 [2021-03-26 04:22:25,392 INFO L147 QuantifierPusher]: treesize reduction 28, result has 42.9 percent of original size 21 [2021-03-26 04:22:25,392 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:22:25,393 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:22:25,395 INFO L147 QuantifierPusher]: treesize reduction 42, result has 32.3 percent of original size 20 [2021-03-26 04:22:25,395 INFO L147 QuantifierPusher]: treesize reduction 42, result has 32.3 percent of original size 20 [2021-03-26 04:22:25,396 INFO L142 QuantifierPusher]: treesize reduction 42, result has 32.3 percent of original size [2021-03-26 04:22:25,396 INFO L147 QuantifierPusher]: treesize reduction 8, result has 60.0 percent of original size 12 [2021-03-26 04:22:25,396 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 4 xjuncts. [2021-03-26 04:22:25,415 INFO L628 ElimStorePlain]: treesize reduction 26, result has 40.9 percent of original size [2021-03-26 04:22:25,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:22:25,416 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-03-26 04:22:25,416 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:59, output treesize:18 [2021-03-26 04:22:25,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:22:25,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:22:25,431 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 04:22:25,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:22:25,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:22:25,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:22:25,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,433 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:22:25,434 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:25,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:22:25,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 04:22:25,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892764357] [2021-03-26 04:22:25,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:22:25,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:22:25,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:22:25,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:22:25,443 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 23 [2021-03-26 04:22:25,443 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 74 transitions, 923 flow. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:25,443 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:22:25,443 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 23 [2021-03-26 04:22:25,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:22:25,635 INFO L129 PetriNetUnfolder]: 47/139 cut-off events. [2021-03-26 04:22:25,635 INFO L130 PetriNetUnfolder]: For 1105/1171 co-relation queries the response was YES. [2021-03-26 04:22:25,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 139 events. 47/139 cut-off events. For 1105/1171 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 610 event pairs, 0 based on Foata normal form. 27/162 useless extension candidates. Maximal degree in co-relation 991. Up to 79 conditions per place. [2021-03-26 04:22:25,637 INFO L132 encePairwiseOnDemand]: 13/23 looper letters, 32 selfloop transitions, 49 changer transitions 1/86 dead transitions. [2021-03-26 04:22:25,637 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 86 transitions, 1314 flow [2021-03-26 04:22:25,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 04:22:25,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 04:22:25,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 130 transitions. [2021-03-26 04:22:25,638 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5138339920948617 [2021-03-26 04:22:25,638 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 130 transitions. [2021-03-26 04:22:25,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 130 transitions. [2021-03-26 04:22:25,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:22:25,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 130 transitions. [2021-03-26 04:22:25,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 11.818181818181818) internal successors, (130), 11 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:25,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 23.0) internal successors, (276), 12 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:25,639 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 23.0) internal successors, (276), 12 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:25,639 INFO L185 Difference]: Start difference. First operand has 67 places, 74 transitions, 923 flow. Second operand 11 states and 130 transitions. [2021-03-26 04:22:25,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 86 transitions, 1314 flow [2021-03-26 04:22:25,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 86 transitions, 1266 flow, removed 16 selfloop flow, removed 4 redundant places. [2021-03-26 04:22:25,649 INFO L241 Difference]: Finished difference. Result has 77 places, 84 transitions, 1223 flow [2021-03-26 04:22:25,649 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1223, PETRI_PLACES=77, PETRI_TRANSITIONS=84} [2021-03-26 04:22:25,649 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 62 predicate places. [2021-03-26 04:22:25,649 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:22:25,649 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 84 transitions, 1223 flow [2021-03-26 04:22:25,649 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 84 transitions, 1223 flow [2021-03-26 04:22:25,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 84 transitions, 1223 flow [2021-03-26 04:22:25,662 INFO L129 PetriNetUnfolder]: 47/136 cut-off events. [2021-03-26 04:22:25,662 INFO L130 PetriNetUnfolder]: For 1030/1030 co-relation queries the response was YES. [2021-03-26 04:22:25,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 136 events. 47/136 cut-off events. For 1030/1030 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 600 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 919. Up to 71 conditions per place. [2021-03-26 04:22:25,663 INFO L142 LiptonReduction]: Number of co-enabled transitions 56 [2021-03-26 04:22:25,666 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:22:25,666 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:22:25,666 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-26 04:22:25,667 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 84 transitions, 1223 flow [2021-03-26 04:22:25,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:25,667 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:22:25,667 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:22:25,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2021-03-26 04:22:25,888 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:22:25,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:22:25,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1326792265, now seen corresponding path program 1 times [2021-03-26 04:22:25,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:22:25,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637951605] [2021-03-26 04:22:25,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:22:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:25,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:22:25,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:25,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:25,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:25,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637951605] [2021-03-26 04:22:25,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879530800] [2021-03-26 04:22:25,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:25,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 04:22:25,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:22:25,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:25,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:25,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:25,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:25,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:25,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:25,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:25,944 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-26 04:22:25,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:25,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:25,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:25,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:25,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:25,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:25,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:25,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:25,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:25,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:25,949 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:22:25,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:25,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:25,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:25,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:22:25,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-26 04:22:25,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38091976] [2021-03-26 04:22:25,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 04:22:25,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:22:25,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 04:22:25,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:22:25,959 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 23 [2021-03-26 04:22:25,959 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 84 transitions, 1223 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:25,959 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:22:25,959 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 23 [2021-03-26 04:22:25,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:22:26,038 INFO L129 PetriNetUnfolder]: 42/146 cut-off events. [2021-03-26 04:22:26,038 INFO L130 PetriNetUnfolder]: For 1433/1456 co-relation queries the response was YES. [2021-03-26 04:22:26,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1146 conditions, 146 events. 42/146 cut-off events. For 1433/1456 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 719 event pairs, 0 based on Foata normal form. 17/162 useless extension candidates. Maximal degree in co-relation 1061. Up to 68 conditions per place. [2021-03-26 04:22:26,039 INFO L132 encePairwiseOnDemand]: 14/23 looper letters, 32 selfloop transitions, 54 changer transitions 3/94 dead transitions. [2021-03-26 04:22:26,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 94 transitions, 1696 flow [2021-03-26 04:22:26,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 04:22:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 04:22:26,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 118 transitions. [2021-03-26 04:22:26,041 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6413043478260869 [2021-03-26 04:22:26,041 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 118 transitions. [2021-03-26 04:22:26,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 118 transitions. [2021-03-26 04:22:26,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:22:26,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 118 transitions. [2021-03-26 04:22:26,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 23.0) internal successors, (207), 9 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,044 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 23.0) internal successors, (207), 9 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,044 INFO L185 Difference]: Start difference. First operand has 76 places, 84 transitions, 1223 flow. Second operand 8 states and 118 transitions. [2021-03-26 04:22:26,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 94 transitions, 1696 flow [2021-03-26 04:22:26,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 94 transitions, 1536 flow, removed 57 selfloop flow, removed 6 redundant places. [2021-03-26 04:22:26,056 INFO L241 Difference]: Finished difference. Result has 82 places, 86 transitions, 1422 flow [2021-03-26 04:22:26,057 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1422, PETRI_PLACES=82, PETRI_TRANSITIONS=86} [2021-03-26 04:22:26,057 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 67 predicate places. [2021-03-26 04:22:26,057 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:22:26,057 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 86 transitions, 1422 flow [2021-03-26 04:22:26,057 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 86 transitions, 1422 flow [2021-03-26 04:22:26,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 86 transitions, 1422 flow [2021-03-26 04:22:26,070 INFO L129 PetriNetUnfolder]: 42/138 cut-off events. [2021-03-26 04:22:26,070 INFO L130 PetriNetUnfolder]: For 1367/1367 co-relation queries the response was YES. [2021-03-26 04:22:26,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 138 events. 42/138 cut-off events. For 1367/1367 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 656 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 955. Up to 68 conditions per place. [2021-03-26 04:22:26,072 INFO L142 LiptonReduction]: Number of co-enabled transitions 34 [2021-03-26 04:22:26,074 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:22:26,074 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:22:26,075 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 04:22:26,076 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 86 transitions, 1422 flow [2021-03-26 04:22:26,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,076 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:22:26,076 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:22:26,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:26,298 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:22:26,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:22:26,298 INFO L82 PathProgramCache]: Analyzing trace with hash -2101799017, now seen corresponding path program 2 times [2021-03-26 04:22:26,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:22:26,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442527437] [2021-03-26 04:22:26,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:22:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:26,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:22:26,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:26,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:26,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:26,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442527437] [2021-03-26 04:22:26,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731814680] [2021-03-26 04:22:26,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:26,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:22:26,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:22:26,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 04:22:26,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:22:26,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:26,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:26,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:26,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:26,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:26,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:26,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:26,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:26,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:26,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:22:26,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:22:26,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:26,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:22:26,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:22:26,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,372 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-26 04:22:26,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:26,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:22:26,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-26 04:22:26,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182732651] [2021-03-26 04:22:26,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 04:22:26,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:22:26,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 04:22:26,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:22:26,378 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 23 [2021-03-26 04:22:26,378 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 86 transitions, 1422 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:22:26,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 23 [2021-03-26 04:22:26,379 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:22:26,452 INFO L129 PetriNetUnfolder]: 41/131 cut-off events. [2021-03-26 04:22:26,452 INFO L130 PetriNetUnfolder]: For 1403/1413 co-relation queries the response was YES. [2021-03-26 04:22:26,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 131 events. 41/131 cut-off events. For 1403/1413 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 586 event pairs, 0 based on Foata normal form. 13/144 useless extension candidates. Maximal degree in co-relation 1020. Up to 67 conditions per place. [2021-03-26 04:22:26,454 INFO L132 encePairwiseOnDemand]: 14/23 looper letters, 42 selfloop transitions, 39 changer transitions 1/87 dead transitions. [2021-03-26 04:22:26,454 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 87 transitions, 1618 flow [2021-03-26 04:22:26,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:22:26,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:22:26,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2021-03-26 04:22:26,455 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6231884057971014 [2021-03-26 04:22:26,455 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 86 transitions. [2021-03-26 04:22:26,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 86 transitions. [2021-03-26 04:22:26,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:22:26,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 86 transitions. [2021-03-26 04:22:26,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,456 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,456 INFO L185 Difference]: Start difference. First operand has 82 places, 86 transitions, 1422 flow. Second operand 6 states and 86 transitions. [2021-03-26 04:22:26,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 87 transitions, 1618 flow [2021-03-26 04:22:26,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 87 transitions, 1467 flow, removed 63 selfloop flow, removed 4 redundant places. [2021-03-26 04:22:26,468 INFO L241 Difference]: Finished difference. Result has 84 places, 84 transitions, 1373 flow [2021-03-26 04:22:26,468 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=1213, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1373, PETRI_PLACES=84, PETRI_TRANSITIONS=84} [2021-03-26 04:22:26,468 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 69 predicate places. [2021-03-26 04:22:26,468 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:22:26,469 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 84 transitions, 1373 flow [2021-03-26 04:22:26,469 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 84 transitions, 1373 flow [2021-03-26 04:22:26,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 1373 flow [2021-03-26 04:22:26,482 INFO L129 PetriNetUnfolder]: 41/131 cut-off events. [2021-03-26 04:22:26,482 INFO L130 PetriNetUnfolder]: For 1234/1234 co-relation queries the response was YES. [2021-03-26 04:22:26,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 999 conditions, 131 events. 41/131 cut-off events. For 1234/1234 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 585 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 917. Up to 64 conditions per place. [2021-03-26 04:22:26,483 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-26 04:22:26,486 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:22:26,486 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:22:26,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-26 04:22:26,488 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 84 transitions, 1373 flow [2021-03-26 04:22:26,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,488 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:22:26,488 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:22:26,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:26,712 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:22:26,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:22:26,712 INFO L82 PathProgramCache]: Analyzing trace with hash 702184546, now seen corresponding path program 2 times [2021-03-26 04:22:26,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:22:26,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495893034] [2021-03-26 04:22:26,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:22:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:26,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:22:26,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:26,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:26,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495893034] [2021-03-26 04:22:26,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198553543] [2021-03-26 04:22:26,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:26,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:22:26,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:22:26,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 04:22:26,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:22:26,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:26,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:26,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:26,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:26,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:26,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:26,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:26,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:26,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:26,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:26,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:26,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:26,768 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 04:22:26,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:26,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:22:26,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:22:26,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:26,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:22:26,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:22:26,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:26,772 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-26 04:22:26,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:26,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:26,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:26,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:22:26,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-26 04:22:26,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548463412] [2021-03-26 04:22:26,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 04:22:26,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:22:26,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 04:22:26,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:22:26,780 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 23 [2021-03-26 04:22:26,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 84 transitions, 1373 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:22:26,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 23 [2021-03-26 04:22:26,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:22:26,853 INFO L129 PetriNetUnfolder]: 38/130 cut-off events. [2021-03-26 04:22:26,853 INFO L130 PetriNetUnfolder]: For 1455/1581 co-relation queries the response was YES. [2021-03-26 04:22:26,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1067 conditions, 130 events. 38/130 cut-off events. For 1455/1581 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 598 event pairs, 0 based on Foata normal form. 16/146 useless extension candidates. Maximal degree in co-relation 995. Up to 64 conditions per place. [2021-03-26 04:22:26,854 INFO L132 encePairwiseOnDemand]: 15/23 looper letters, 57 selfloop transitions, 22 changer transitions 2/86 dead transitions. [2021-03-26 04:22:26,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 86 transitions, 1584 flow [2021-03-26 04:22:26,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 04:22:26,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 04:22:26,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 113 transitions. [2021-03-26 04:22:26,855 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6141304347826086 [2021-03-26 04:22:26,856 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 113 transitions. [2021-03-26 04:22:26,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 113 transitions. [2021-03-26 04:22:26,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:22:26,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 113 transitions. [2021-03-26 04:22:26,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 23.0) internal successors, (207), 9 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,857 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 23.0) internal successors, (207), 9 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,857 INFO L185 Difference]: Start difference. First operand has 84 places, 84 transitions, 1373 flow. Second operand 8 states and 113 transitions. [2021-03-26 04:22:26,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 86 transitions, 1584 flow [2021-03-26 04:22:26,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 86 transitions, 1507 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-26 04:22:26,869 INFO L241 Difference]: Finished difference. Result has 85 places, 81 transitions, 1297 flow [2021-03-26 04:22:26,869 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=1280, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1297, PETRI_PLACES=85, PETRI_TRANSITIONS=81} [2021-03-26 04:22:26,869 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 70 predicate places. [2021-03-26 04:22:26,869 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:22:26,869 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 81 transitions, 1297 flow [2021-03-26 04:22:26,869 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 81 transitions, 1297 flow [2021-03-26 04:22:26,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 1297 flow [2021-03-26 04:22:26,881 INFO L129 PetriNetUnfolder]: 38/126 cut-off events. [2021-03-26 04:22:26,881 INFO L130 PetriNetUnfolder]: For 1045/1045 co-relation queries the response was YES. [2021-03-26 04:22:26,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 923 conditions, 126 events. 38/126 cut-off events. For 1045/1045 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 577 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 873. Up to 62 conditions per place. [2021-03-26 04:22:26,882 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-26 04:22:26,886 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:22:26,886 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:22:26,886 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-26 04:22:26,886 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 81 transitions, 1297 flow [2021-03-26 04:22:26,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:26,887 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:22:26,887 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:22:27,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:27,108 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:22:27,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:22:27,108 INFO L82 PathProgramCache]: Analyzing trace with hash -840332435, now seen corresponding path program 1 times [2021-03-26 04:22:27,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:22:27,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558191953] [2021-03-26 04:22:27,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:22:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:27,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:22:27,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:27,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:27,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:27,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558191953] [2021-03-26 04:22:27,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808024437] [2021-03-26 04:22:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:27,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 04:22:27,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:22:27,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:27,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:27,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:27,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:27,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:27,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:27,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:27,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:27,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:27,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:22:27,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:22:27,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:22:27,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:22:27,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:22:27,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:27,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:22:27,179 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-26 04:22:27,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:22:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:27,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:22:27,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-03-26 04:22:27,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181097978] [2021-03-26 04:22:27,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 04:22:27,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:22:27,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 04:22:27,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:22:27,187 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 23 [2021-03-26 04:22:27,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 81 transitions, 1297 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:27,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:22:27,187 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 23 [2021-03-26 04:22:27,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:22:27,260 INFO L129 PetriNetUnfolder]: 42/130 cut-off events. [2021-03-26 04:22:27,261 INFO L130 PetriNetUnfolder]: For 1496/1745 co-relation queries the response was YES. [2021-03-26 04:22:27,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1105 conditions, 130 events. 42/130 cut-off events. For 1496/1745 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 557 event pairs, 0 based on Foata normal form. 20/150 useless extension candidates. Maximal degree in co-relation 1056. Up to 83 conditions per place. [2021-03-26 04:22:27,262 INFO L132 encePairwiseOnDemand]: 14/23 looper letters, 65 selfloop transitions, 20 changer transitions 0/90 dead transitions. [2021-03-26 04:22:27,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 90 transitions, 1687 flow [2021-03-26 04:22:27,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:22:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:22:27,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 98 transitions. [2021-03-26 04:22:27,264 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2021-03-26 04:22:27,264 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 98 transitions. [2021-03-26 04:22:27,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 98 transitions. [2021-03-26 04:22:27,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:22:27,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 98 transitions. [2021-03-26 04:22:27,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:27,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:27,271 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:27,271 INFO L185 Difference]: Start difference. First operand has 84 places, 81 transitions, 1297 flow. Second operand 7 states and 98 transitions. [2021-03-26 04:22:27,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 90 transitions, 1687 flow [2021-03-26 04:22:27,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 90 transitions, 1615 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-03-26 04:22:27,283 INFO L241 Difference]: Finished difference. Result has 83 places, 86 transitions, 1420 flow [2021-03-26 04:22:27,283 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=1194, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1420, PETRI_PLACES=83, PETRI_TRANSITIONS=86} [2021-03-26 04:22:27,283 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 68 predicate places. [2021-03-26 04:22:27,283 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:22:27,283 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 86 transitions, 1420 flow [2021-03-26 04:22:27,283 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 86 transitions, 1420 flow [2021-03-26 04:22:27,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 86 transitions, 1420 flow [2021-03-26 04:22:27,295 INFO L129 PetriNetUnfolder]: 42/130 cut-off events. [2021-03-26 04:22:27,295 INFO L130 PetriNetUnfolder]: For 1165/1165 co-relation queries the response was YES. [2021-03-26 04:22:27,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 130 events. 42/130 cut-off events. For 1165/1165 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 581 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 939. Up to 71 conditions per place. [2021-03-26 04:22:27,296 INFO L142 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-26 04:22:27,299 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:22:27,299 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:22:27,299 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 04:22:27,299 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 86 transitions, 1420 flow [2021-03-26 04:22:27,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:22:27,300 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:22:27,300 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:22:27,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:27,524 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:22:27,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:22:27,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1071719667, now seen corresponding path program 1 times [2021-03-26 04:22:27,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:22:27,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229605070] [2021-03-26 04:22:27,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:22:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:27,548 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-26 04:22:27,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:22:27,556 INFO L142 QuantifierPusher]: treesize reduction 5, result has 81.5 percent of original size [2021-03-26 04:22:27,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:22:27,566 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-26 04:22:27,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:22:27,579 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-03-26 04:22:27,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:22:27,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:22:27,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:22:27,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229605070] [2021-03-26 04:22:27,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597184958] [2021-03-26 04:22:27,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-26 04:22:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:22:27,619 WARN L261 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-26 04:22:27,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:22:27,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:27,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:27,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:27,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:22:27,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:27,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:27,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:27,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:27,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:27,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:27,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:27,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:22:27,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 368 [2021-03-26 04:22:27,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:22:27,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 368 [2021-03-26 04:24:48,421 WARN L205 SmtUtils]: Spent 2.33 m on a formula simplification. DAG size of input: 112621 DAG size of output: 53 [2021-03-26 04:24:48,422 INFO L142 QuantifierPusher]: treesize reduction 700448615, result has 0.0 percent of original size [2021-03-26 04:24:48,423 INFO L147 QuantifierPusher]: treesize reduction 56, result has 61.6 percent of original size 90 [2021-03-26 04:24:48,432 INFO L142 QuantifierPusher]: treesize reduction 56, result has 61.6 percent of original size [2021-03-26 04:24:48,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-03-26 04:24:48,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-26 04:24:48,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-26 04:24:48,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-26 04:24:48,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-26 04:24:48,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,505 INFO L147 QuantifierPusher]: treesize reduction 42, result has 51.7 percent of original size 45 [2021-03-26 04:24:48,506 INFO L142 QuantifierPusher]: treesize reduction 42, result has 52.3 percent of original size [2021-03-26 04:24:48,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:24:48,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:24:48,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,507 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:24:48,508 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:24:48,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:24:48,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:24:48,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:24:48,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:24:48,528 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-03-26 04:24:48,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,530 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:24:48,530 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,531 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.9 percent of original size [2021-03-26 04:24:48,531 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:24:48,532 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-26 04:24:48,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:48,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,534 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:24:48,534 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:48,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:48,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:48,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:48,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,539 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-26 04:24:48,566 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 21 treesize of output 64 [2021-03-26 04:24:48,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,569 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:24:48,570 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,572 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.7 percent of original size [2021-03-26 04:24:48,572 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:24:48,573 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,574 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-26 04:24:48,574 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:24:48,575 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,576 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size [2021-03-26 04:24:48,576 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:24:48,577 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:48,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:48,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 04:24:48,580 INFO L147 QuantifierPusher]: treesize reduction 12, result has 74.5 percent of original size 35 [2021-03-26 04:24:48,581 INFO L147 QuantifierPusher]: treesize reduction 12, result has 74.5 percent of original size 35 [2021-03-26 04:24:48,581 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:24:48,582 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,583 INFO L142 QuantifierPusher]: treesize reduction 37, result has 65.1 percent of original size [2021-03-26 04:24:48,583 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:24:48,586 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,587 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size [2021-03-26 04:24:48,588 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:24:48,588 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,589 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:24:48,590 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:48,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:24:48,592 INFO L147 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size 12 [2021-03-26 04:24:48,593 INFO L147 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size 12 [2021-03-26 04:24:48,594 INFO L147 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size 12 [2021-03-26 04:24:48,594 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-03-26 04:24:48,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:24:48,594 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 3 xjuncts. [2021-03-26 04:24:48,612 INFO L628 ElimStorePlain]: treesize reduction 18, result has 50.0 percent of original size [2021-03-26 04:24:48,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:24:48,613 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-03-26 04:24:48,613 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:59, output treesize:18 [2021-03-26 04:24:48,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:24:48,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:24:48,628 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 04:24:48,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:24:48,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:24:48,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:24:48,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,633 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:24:48,634 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:48,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:48,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:48,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:24:48,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:24:48,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 04:24:48,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112125514] [2021-03-26 04:24:48,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:24:48,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:24:48,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:24:48,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:24:48,650 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 23 [2021-03-26 04:24:48,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 86 transitions, 1420 flow. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:24:48,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:24:48,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 23 [2021-03-26 04:24:48,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:24:48,889 INFO L129 PetriNetUnfolder]: 44/138 cut-off events. [2021-03-26 04:24:48,889 INFO L130 PetriNetUnfolder]: For 1399/1529 co-relation queries the response was YES. [2021-03-26 04:24:48,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 138 events. 44/138 cut-off events. For 1399/1529 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 613 event pairs, 0 based on Foata normal form. 16/154 useless extension candidates. Maximal degree in co-relation 1105. Up to 106 conditions per place. [2021-03-26 04:24:48,891 INFO L132 encePairwiseOnDemand]: 13/23 looper letters, 67 selfloop transitions, 20 changer transitions 1/92 dead transitions. [2021-03-26 04:24:48,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 92 transitions, 1728 flow [2021-03-26 04:24:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 04:24:48,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 04:24:48,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 104 transitions. [2021-03-26 04:24:48,893 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5024154589371981 [2021-03-26 04:24:48,893 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 104 transitions. [2021-03-26 04:24:48,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 104 transitions. [2021-03-26 04:24:48,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:24:48,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 104 transitions. [2021-03-26 04:24:48,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:24:48,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:24:48,894 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:24:48,894 INFO L185 Difference]: Start difference. First operand has 83 places, 86 transitions, 1420 flow. Second operand 9 states and 104 transitions. [2021-03-26 04:24:48,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 92 transitions, 1728 flow [2021-03-26 04:24:48,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 92 transitions, 1679 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-03-26 04:24:48,905 INFO L241 Difference]: Finished difference. Result has 91 places, 91 transitions, 1543 flow [2021-03-26 04:24:48,905 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=1373, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1543, PETRI_PLACES=91, PETRI_TRANSITIONS=91} [2021-03-26 04:24:48,905 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 76 predicate places. [2021-03-26 04:24:48,905 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:24:48,906 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions, 1543 flow [2021-03-26 04:24:48,906 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 91 transitions, 1543 flow [2021-03-26 04:24:48,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 91 transitions, 1543 flow [2021-03-26 04:24:48,918 INFO L129 PetriNetUnfolder]: 44/135 cut-off events. [2021-03-26 04:24:48,919 INFO L130 PetriNetUnfolder]: For 1289/1289 co-relation queries the response was YES. [2021-03-26 04:24:48,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 135 events. 44/135 cut-off events. For 1289/1289 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 611 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 1042. Up to 74 conditions per place. [2021-03-26 04:24:48,920 INFO L142 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-26 04:24:49,173 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:24:49,173 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 04:24:49,173 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 268 [2021-03-26 04:24:49,174 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 89 transitions, 1540 flow [2021-03-26 04:24:49,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:24:49,174 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:24:49,174 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:24:49,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable143 [2021-03-26 04:24:49,395 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:24:49,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:24:49,395 INFO L82 PathProgramCache]: Analyzing trace with hash 384366905, now seen corresponding path program 1 times [2021-03-26 04:24:49,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:24:49,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791341685] [2021-03-26 04:24:49,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:24:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:24:49,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:24:49,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:24:49,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791341685] [2021-03-26 04:24:49,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298084471] [2021-03-26 04:24:49,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-26 04:24:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:24:49,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-26 04:24:49,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:24:49,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:24:49,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:49,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:24:49,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:24:49,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:49,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:24:49,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:24:49,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:49,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:24:49,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:24:49,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:49,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:24:49,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:24:49,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:49,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:24:49,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:24:49,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:49,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:24:49,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:24:49,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:24:49,490 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-26 04:24:49,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:49,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:49,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:49,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:49,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:49,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:49,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:49,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:49,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:49,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:24:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:24:49,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:24:49,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-26 04:24:49,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341465613] [2021-03-26 04:24:49,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 04:24:49,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:24:49,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 04:24:49,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 04:24:49,498 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 28 [2021-03-26 04:24:49,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 1540 flow. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:24:49,498 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:24:49,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 28 [2021-03-26 04:24:49,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:24:49,611 INFO L129 PetriNetUnfolder]: 51/147 cut-off events. [2021-03-26 04:24:49,611 INFO L130 PetriNetUnfolder]: For 1888/2029 co-relation queries the response was YES. [2021-03-26 04:24:49,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 147 events. 51/147 cut-off events. For 1888/2029 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 632 event pairs, 0 based on Foata normal form. 38/184 useless extension candidates. Maximal degree in co-relation 1347. Up to 89 conditions per place. [2021-03-26 04:24:49,612 INFO L132 encePairwiseOnDemand]: 16/28 looper letters, 45 selfloop transitions, 55 changer transitions 0/105 dead transitions. [2021-03-26 04:24:49,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 105 transitions, 2117 flow [2021-03-26 04:24:49,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 04:24:49,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 04:24:49,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2021-03-26 04:24:49,614 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5223214285714286 [2021-03-26 04:24:49,614 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 117 transitions. [2021-03-26 04:24:49,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 117 transitions. [2021-03-26 04:24:49,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:24:49,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 117 transitions. [2021-03-26 04:24:49,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:24:49,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:24:49,615 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:24:49,615 INFO L185 Difference]: Start difference. First operand has 88 places, 89 transitions, 1540 flow. Second operand 8 states and 117 transitions. [2021-03-26 04:24:49,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 105 transitions, 2117 flow [2021-03-26 04:24:49,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 105 transitions, 1961 flow, removed 45 selfloop flow, removed 10 redundant places. [2021-03-26 04:24:49,628 INFO L241 Difference]: Finished difference. Result has 87 places, 99 transitions, 1847 flow [2021-03-26 04:24:49,628 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1360, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1847, PETRI_PLACES=87, PETRI_TRANSITIONS=99} [2021-03-26 04:24:49,628 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 72 predicate places. [2021-03-26 04:24:49,628 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:24:49,628 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 99 transitions, 1847 flow [2021-03-26 04:24:49,629 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 99 transitions, 1847 flow [2021-03-26 04:24:49,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 99 transitions, 1847 flow [2021-03-26 04:24:49,642 INFO L129 PetriNetUnfolder]: 51/147 cut-off events. [2021-03-26 04:24:49,643 INFO L130 PetriNetUnfolder]: For 1749/1749 co-relation queries the response was YES. [2021-03-26 04:24:49,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1324 conditions, 147 events. 51/147 cut-off events. For 1749/1749 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 669 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 1255. Up to 89 conditions per place. [2021-03-26 04:24:49,647 INFO L142 LiptonReduction]: Number of co-enabled transitions 28 [2021-03-26 04:24:49,651 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:24:49,651 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:24:49,651 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 04:24:49,652 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 99 transitions, 1847 flow [2021-03-26 04:24:49,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:24:49,652 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:24:49,652 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:24:49,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable157 [2021-03-26 04:24:49,865 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:24:49,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:24:49,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1135524583, now seen corresponding path program 1 times [2021-03-26 04:24:49,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:24:49,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077007290] [2021-03-26 04:24:49,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:24:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:24:49,887 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 04:24:49,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:24:49,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:24:49,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:24:49,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:24:49,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077007290] [2021-03-26 04:24:49,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737664423] [2021-03-26 04:24:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:24:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:24:49,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-26 04:24:49,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:24:49,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 04:24:49,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:49,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-03-26 04:24:49,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 373 [2021-03-26 04:24:49,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:24:49,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:24:49,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-03-26 04:24:49,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 373 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown