/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 11:52:43,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 11:52:43,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 11:52:43,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 11:52:43,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 11:52:43,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 11:52:43,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 11:52:43,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 11:52:43,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 11:52:43,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 11:52:43,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 11:52:43,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 11:52:43,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 11:52:43,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 11:52:43,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 11:52:43,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 11:52:43,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 11:52:43,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 11:52:43,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 11:52:43,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 11:52:43,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 11:52:43,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 11:52:43,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 11:52:43,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 11:52:43,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 11:52:43,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 11:52:43,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 11:52:43,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 11:52:43,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 11:52:43,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 11:52:43,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 11:52:43,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 11:52:43,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 11:52:43,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 11:52:43,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 11:52:43,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 11:52:43,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 11:52:43,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 11:52:43,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 11:52:43,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 11:52:43,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 11:52:43,321 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-RepeatedVariableLbe.epf [2021-03-25 11:52:43,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 11:52:43,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 11:52:43,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 11:52:43,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 11:52:43,352 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 11:52:43,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 11:52:43,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 11:52:43,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 11:52:43,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 11:52:43,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 11:52:43,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 11:52:43,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 11:52:43,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 11:52:43,354 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 11:52:43,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 11:52:43,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 11:52:43,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 11:52:43,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 11:52:43,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 11:52:43,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 11:52:43,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 11:52:43,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 11:52:43,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 11:52:43,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 11:52:43,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 11:52:43,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 11:52:43,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 11:52:43,355 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 11:52:43,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 11:52:43,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 11:52:43,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 11:52:43,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 11:52:43,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 11:52:43,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 11:52:43,656 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 11:52:43,657 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 11:52:43,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl [2021-03-25 11:52:43,681 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl' [2021-03-25 11:52:43,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 11:52:43,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 11:52:43,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 11:52:43,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 11:52:43,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 11:52:43,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 11:52:43" (1/1) ... [2021-03-25 11:52:43,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 11:52:43" (1/1) ... [2021-03-25 11:52:43,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 11:52:43,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 11:52:43,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 11:52:43,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 11:52:43,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 11:52:43" (1/1) ... [2021-03-25 11:52:43,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 11:52:43" (1/1) ... [2021-03-25 11:52:43,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 11:52:43" (1/1) ... [2021-03-25 11:52:43,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 11:52:43" (1/1) ... [2021-03-25 11:52:43,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 11:52:43" (1/1) ... [2021-03-25 11:52:43,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 11:52:43" (1/1) ... [2021-03-25 11:52:43,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 11:52:43" (1/1) ... [2021-03-25 11:52:43,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 11:52:43,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 11:52:43,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 11:52:43,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 11:52:43,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 11:52:43" (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 [2021-03-25 11:52:43,869 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-25 11:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-25 11:52:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-25 11:52:43,881 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-25 11:52:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-25 11:52:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-25 11:52:43,881 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 11:52:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 11:52:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 11:52:43,882 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 11:52:44,146 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 11:52:44,146 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 11:52:44,147 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 11:52:44 BoogieIcfgContainer [2021-03-25 11:52:44,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 11:52:44,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 11:52:44,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 11:52:44,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 11:52:44,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 11:52:43" (1/2) ... [2021-03-25 11:52:44,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e3ac99 and model type nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 11:52:44, skipping insertion in model container [2021-03-25 11:52:44,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 11:52:44" (2/2) ... [2021-03-25 11:52:44,152 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-counter-alt2.wvr.bpl [2021-03-25 11:52:44,155 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 11:52:44,182 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 11:52:44,183 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 11:52:44,203 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-25 11:52:44,215 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 11:52:44,228 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 11:52:44,229 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 11:52:44,229 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 11:52:44,229 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 11:52:44,229 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 11:52:44,229 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 11:52:44,229 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 11:52:44,229 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 11:52:44,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 62 flow [2021-03-25 11:52:44,271 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-25 11:52:44,272 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 11:52:44,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 12. Up to 2 conditions per place. [2021-03-25 11:52:44,274 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 23 transitions, 62 flow [2021-03-25 11:52:44,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 19 transitions, 50 flow [2021-03-25 11:52:44,277 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:44,283 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 19 transitions, 50 flow [2021-03-25 11:52:44,285 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 19 transitions, 50 flow [2021-03-25 11:52:44,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 50 flow [2021-03-25 11:52:44,307 INFO L129 PetriNetUnfolder]: 2/19 cut-off events. [2021-03-25 11:52:44,307 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 11:52:44,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 19 events. 2/19 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 12. Up to 2 conditions per place. [2021-03-25 11:52:44,320 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-25 11:52:44,578 INFO L154 LiptonReduction]: Checked pairs total: 20 [2021-03-25 11:52:44,578 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-25 11:52:44,580 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 304 [2021-03-25 11:52:44,589 INFO L129 PetriNetUnfolder]: 2/9 cut-off events. [2021-03-25 11:52:44,589 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 11:52:44,589 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:44,590 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:44,590 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:44,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:44,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1518710376, now seen corresponding path program 1 times [2021-03-25 11:52:44,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:44,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222462981] [2021-03-25 11:52:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:44,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:44,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:44,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222462981] [2021-03-25 11:52:44,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 11:52:44,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 11:52:44,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027915705] [2021-03-25 11:52:44,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 11:52:44,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:44,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 11:52:44,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 11:52:44,729 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 32 [2021-03-25 11:52:44,730 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 10 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-03-25 11:52:44,730 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:44,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 32 [2021-03-25 11:52:44,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:44,759 INFO L129 PetriNetUnfolder]: 2/11 cut-off events. [2021-03-25 11:52:44,759 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 11:52:44,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 11 events. 2/11 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. 0/9 useless extension candidates. Maximal degree in co-relation 11. Up to 4 conditions per place. [2021-03-25 11:52:44,760 INFO L132 encePairwiseOnDemand]: 29/32 looper letters, 2 selfloop transitions, 2 changer transitions 0/11 dead transitions. [2021-03-25 11:52:44,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 11 transitions, 42 flow [2021-03-25 11:52:44,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 11:52:44,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 11:52:44,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2021-03-25 11:52:44,768 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2021-03-25 11:52:44,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 62 transitions. [2021-03-25 11:52:44,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 62 transitions. [2021-03-25 11:52:44,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:44,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 62 transitions. [2021-03-25 11:52:44,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-03-25 11:52:44,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2021-03-25 11:52:44,774 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2021-03-25 11:52:44,775 INFO L185 Difference]: Start difference. First operand has 15 places, 10 transitions, 32 flow. Second operand 3 states and 62 transitions. [2021-03-25 11:52:44,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 11 transitions, 42 flow [2021-03-25 11:52:44,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 11 transitions, 34 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 11:52:44,778 INFO L241 Difference]: Finished difference. Result has 14 places, 11 transitions, 36 flow [2021-03-25 11:52:44,779 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=14, PETRI_TRANSITIONS=11} [2021-03-25 11:52:44,779 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, -1 predicate places. [2021-03-25 11:52:44,779 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:44,779 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 11 transitions, 36 flow [2021-03-25 11:52:44,780 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 11 transitions, 36 flow [2021-03-25 11:52:44,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 11 transitions, 36 flow [2021-03-25 11:52:44,782 INFO L129 PetriNetUnfolder]: 2/11 cut-off events. [2021-03-25 11:52:44,782 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 11:52:44,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 11 events. 2/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 9. Up to 4 conditions per place. [2021-03-25 11:52:44,782 INFO L142 LiptonReduction]: Number of co-enabled transitions 22 [2021-03-25 11:52:44,783 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:44,783 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 11:52:44,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-25 11:52:44,784 INFO L480 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 36 flow [2021-03-25 11:52:44,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-03-25 11:52:44,784 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:44,784 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:44,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 11:52:44,784 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:44,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:44,785 INFO L82 PathProgramCache]: Analyzing trace with hash 221041738, now seen corresponding path program 1 times [2021-03-25 11:52:44,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:44,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752586491] [2021-03-25 11:52:44,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:44,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:44,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-25 11:52:44,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752586491] [2021-03-25 11:52:44,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 11:52:44,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 11:52:44,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356319221] [2021-03-25 11:52:44,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 11:52:44,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:44,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 11:52:44,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 11:52:44,808 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 32 [2021-03-25 11:52:44,808 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 11 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-03-25 11:52:44,808 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:44,808 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 32 [2021-03-25 11:52:44,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:44,813 INFO L129 PetriNetUnfolder]: 2/12 cut-off events. [2021-03-25 11:52:44,814 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 11:52:44,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 12 events. 2/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 13. Up to 4 conditions per place. [2021-03-25 11:52:44,814 INFO L132 encePairwiseOnDemand]: 29/32 looper letters, 2 selfloop transitions, 2 changer transitions 0/12 dead transitions. [2021-03-25 11:52:44,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 12 transitions, 46 flow [2021-03-25 11:52:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 11:52:44,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 11:52:44,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2021-03-25 11:52:44,815 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6770833333333334 [2021-03-25 11:52:44,815 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 65 transitions. [2021-03-25 11:52:44,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 65 transitions. [2021-03-25 11:52:44,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:44,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 65 transitions. [2021-03-25 11:52:44,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-03-25 11:52:44,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2021-03-25 11:52:44,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2021-03-25 11:52:44,817 INFO L185 Difference]: Start difference. First operand has 14 places, 11 transitions, 36 flow. Second operand 3 states and 65 transitions. [2021-03-25 11:52:44,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 12 transitions, 46 flow [2021-03-25 11:52:44,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 12 transitions, 44 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 11:52:44,818 INFO L241 Difference]: Finished difference. Result has 16 places, 12 transitions, 46 flow [2021-03-25 11:52:44,818 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=16, PETRI_TRANSITIONS=12} [2021-03-25 11:52:44,818 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 1 predicate places. [2021-03-25 11:52:44,819 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:44,819 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 16 places, 12 transitions, 46 flow [2021-03-25 11:52:44,819 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 16 places, 12 transitions, 46 flow [2021-03-25 11:52:44,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 16 places, 12 transitions, 46 flow [2021-03-25 11:52:44,821 INFO L129 PetriNetUnfolder]: 2/12 cut-off events. [2021-03-25 11:52:44,821 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 11:52:44,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 12 events. 2/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 15. Up to 4 conditions per place. [2021-03-25 11:52:44,822 INFO L142 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-25 11:52:44,823 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:44,823 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 11:52:44,823 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-25 11:52:44,823 INFO L480 AbstractCegarLoop]: Abstraction has has 16 places, 12 transitions, 46 flow [2021-03-25 11:52:44,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-03-25 11:52:44,824 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:44,824 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:44,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 11:52:44,824 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:44,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:44,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1734781794, now seen corresponding path program 1 times [2021-03-25 11:52:44,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:44,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796314223] [2021-03-25 11:52:44,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:44,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:44,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:44,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-25 11:52:44,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796314223] [2021-03-25 11:52:44,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568136594] [2021-03-25 11:52:44,856 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 [2021-03-25 11:52:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:44,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-25 11:52:44,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:44,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:44,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:44,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:44,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:44,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:44,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:44,920 INFO L142 QuantifierPusher]: treesize reduction 15, result has 50.0 percent of original size [2021-03-25 11:52:44,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:44,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:44,933 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.9 percent of original size [2021-03-25 11:52:44,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:44,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:44,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:52:44,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:44,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-25 11:52:44,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:44,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-03-25 11:52:44,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724508689] [2021-03-25 11:52:44,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 11:52:44,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:44,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 11:52:44,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-03-25 11:52:44,949 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2021-03-25 11:52:44,950 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 46 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2021-03-25 11:52:44,950 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:44,950 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2021-03-25 11:52:44,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:44,966 INFO L129 PetriNetUnfolder]: 7/21 cut-off events. [2021-03-25 11:52:44,966 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2021-03-25 11:52:44,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 21 events. 7/21 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 42. Up to 9 conditions per place. [2021-03-25 11:52:44,967 INFO L132 encePairwiseOnDemand]: 28/32 looper letters, 7 selfloop transitions, 4 changer transitions 0/16 dead transitions. [2021-03-25 11:52:44,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 16 transitions, 84 flow [2021-03-25 11:52:44,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 11:52:44,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 11:52:44,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2021-03-25 11:52:44,968 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5234375 [2021-03-25 11:52:44,968 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 67 transitions. [2021-03-25 11:52:44,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 67 transitions. [2021-03-25 11:52:44,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:44,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 67 transitions. [2021-03-25 11:52:44,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2021-03-25 11:52:44,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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) [2021-03-25 11:52:44,969 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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) [2021-03-25 11:52:44,969 INFO L185 Difference]: Start difference. First operand has 16 places, 12 transitions, 46 flow. Second operand 4 states and 67 transitions. [2021-03-25 11:52:44,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 16 transitions, 84 flow [2021-03-25 11:52:44,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 16 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 11:52:44,970 INFO L241 Difference]: Finished difference. Result has 20 places, 14 transitions, 73 flow [2021-03-25 11:52:44,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2021-03-25 11:52:44,971 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 5 predicate places. [2021-03-25 11:52:44,971 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:44,971 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 14 transitions, 73 flow [2021-03-25 11:52:44,971 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 14 transitions, 73 flow [2021-03-25 11:52:44,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 14 transitions, 73 flow [2021-03-25 11:52:44,974 INFO L129 PetriNetUnfolder]: 5/19 cut-off events. [2021-03-25 11:52:44,974 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-25 11:52:44,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 19 events. 5/19 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 37. Up to 7 conditions per place. [2021-03-25 11:52:44,974 INFO L142 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-25 11:52:44,975 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:44,975 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 11:52:44,975 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-25 11:52:44,975 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 73 flow [2021-03-25 11:52:44,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2021-03-25 11:52:44,975 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:44,975 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:45,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-03-25 11:52:45,190 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:45,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:45,191 INFO L82 PathProgramCache]: Analyzing trace with hash 896055412, now seen corresponding path program 2 times [2021-03-25 11:52:45,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:45,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376165243] [2021-03-25 11:52:45,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:45,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:45,280 INFO L142 QuantifierPusher]: treesize reduction 25, result has 49.0 percent of original size [2021-03-25 11:52:45,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 11:52:45,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:45,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:45,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376165243] [2021-03-25 11:52:45,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635329187] [2021-03-25 11:52:45,309 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 [2021-03-25 11:52:45,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 11:52:45,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 11:52:45,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 11:52:45,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:45,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,393 INFO L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-03-25 11:52:45,394 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 11:52:45,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:45,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 11:52:45,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:45,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 11:52:45,437 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.3 percent of original size [2021-03-25 11:52:45,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,444 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:45,454 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:45,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:45,462 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:45,466 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,467 INFO L142 QuantifierPusher]: treesize reduction 24, result has 48.9 percent of original size [2021-03-25 11:52:45,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:45,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:45,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:45,483 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-25 11:52:45,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:45,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:45,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 11:52:45,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,492 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:45,494 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,496 INFO L142 QuantifierPusher]: treesize reduction 12, result has 47.8 percent of original size [2021-03-25 11:52:45,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:45,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:45,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:45,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:45,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:45,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:45,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:45,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:45,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:45,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-25 11:52:45,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661614394] [2021-03-25 11:52:45,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 11:52:45,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:45,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 11:52:45,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-03-25 11:52:45,512 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2021-03-25 11:52:45,512 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 73 flow. Second operand has 9 states, 9 states have (on average 15.0) internal successors, (135), 9 states have internal predecessors, (135), 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) [2021-03-25 11:52:45,512 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:45,512 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2021-03-25 11:52:45,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:45,573 INFO L129 PetriNetUnfolder]: 13/42 cut-off events. [2021-03-25 11:52:45,573 INFO L130 PetriNetUnfolder]: For 30/34 co-relation queries the response was YES. [2021-03-25 11:52:45,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 42 events. 13/42 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 109 event pairs, 0 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 108. Up to 19 conditions per place. [2021-03-25 11:52:45,574 INFO L132 encePairwiseOnDemand]: 27/32 looper letters, 9 selfloop transitions, 11 changer transitions 0/25 dead transitions. [2021-03-25 11:52:45,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 25 transitions, 177 flow [2021-03-25 11:52:45,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 11:52:45,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 11:52:45,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 114 transitions. [2021-03-25 11:52:45,578 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5089285714285714 [2021-03-25 11:52:45,578 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 114 transitions. [2021-03-25 11:52:45,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 114 transitions. [2021-03-25 11:52:45,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:45,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 114 transitions. [2021-03-25 11:52:45,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 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) [2021-03-25 11:52:45,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 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) [2021-03-25 11:52:45,583 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 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) [2021-03-25 11:52:45,583 INFO L185 Difference]: Start difference. First operand has 20 places, 14 transitions, 73 flow. Second operand 7 states and 114 transitions. [2021-03-25 11:52:45,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 25 transitions, 177 flow [2021-03-25 11:52:45,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 11:52:45,585 INFO L241 Difference]: Finished difference. Result has 26 places, 23 transitions, 154 flow [2021-03-25 11:52:45,586 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=154, PETRI_PLACES=26, PETRI_TRANSITIONS=23} [2021-03-25 11:52:45,586 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 11 predicate places. [2021-03-25 11:52:45,586 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:45,586 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 23 transitions, 154 flow [2021-03-25 11:52:45,586 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 23 transitions, 154 flow [2021-03-25 11:52:45,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 23 transitions, 154 flow [2021-03-25 11:52:45,594 INFO L129 PetriNetUnfolder]: 12/41 cut-off events. [2021-03-25 11:52:45,594 INFO L130 PetriNetUnfolder]: For 30/33 co-relation queries the response was YES. [2021-03-25 11:52:45,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 41 events. 12/41 cut-off events. For 30/33 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 105 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 103. Up to 18 conditions per place. [2021-03-25 11:52:45,596 INFO L142 LiptonReduction]: Number of co-enabled transitions 52 [2021-03-25 11:52:45,640 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 11:52:45,640 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 11:52:45,640 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-25 11:52:45,643 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 23 transitions, 157 flow [2021-03-25 11:52:45,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 9 states have internal predecessors, (135), 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) [2021-03-25 11:52:45,643 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:45,643 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:45,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:45,858 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:45,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:45,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1240891254, now seen corresponding path program 3 times [2021-03-25 11:52:45,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:45,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996691253] [2021-03-25 11:52:45,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:45,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:45,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:45,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:45,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:45,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:45,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:45,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996691253] [2021-03-25 11:52:45,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295673468] [2021-03-25 11:52:45,892 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:45,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-25 11:52:45,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 11:52:45,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 11:52:45,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:45,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:45,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:45,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:45,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:45,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:45,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:45,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:45,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:45,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:45,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:45,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:45,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:45,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:45,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:45,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:45,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:45,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:45,968 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-25 11:52:45,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,971 INFO L147 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size 5 [2021-03-25 11:52:45,971 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:45,977 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,979 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-03-25 11:52:45,980 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 11:52:45,980 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 11:52:45,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:45,990 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.9 percent of original size [2021-03-25 11:52:45,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:45,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:45,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:45,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:52:46,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:46,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:46,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:46,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:46,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:46,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:46,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:46,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:46,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:46,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:46,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:46,006 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:46,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:46,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 11:52:46,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647069455] [2021-03-25 11:52:46,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 11:52:46,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:46,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 11:52:46,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-25 11:52:46,007 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2021-03-25 11:52:46,007 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 157 flow. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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) [2021-03-25 11:52:46,007 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:46,007 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2021-03-25 11:52:46,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:46,129 INFO L129 PetriNetUnfolder]: 43/113 cut-off events. [2021-03-25 11:52:46,129 INFO L130 PetriNetUnfolder]: For 233/243 co-relation queries the response was YES. [2021-03-25 11:52:46,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 113 events. 43/113 cut-off events. For 233/243 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 418 event pairs, 0 based on Foata normal form. 18/129 useless extension candidates. Maximal degree in co-relation 374. Up to 47 conditions per place. [2021-03-25 11:52:46,130 INFO L132 encePairwiseOnDemand]: 27/33 looper letters, 25 selfloop transitions, 23 changer transitions 1/54 dead transitions. [2021-03-25 11:52:46,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 54 transitions, 441 flow [2021-03-25 11:52:46,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 11:52:46,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 11:52:46,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 198 transitions. [2021-03-25 11:52:46,131 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-25 11:52:46,132 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 198 transitions. [2021-03-25 11:52:46,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 198 transitions. [2021-03-25 11:52:46,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:46,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 198 transitions. [2021-03-25 11:52:46,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 16.5) internal successors, (198), 12 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) [2021-03-25 11:52:46,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 33.0) internal successors, (429), 13 states have internal predecessors, (429), 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) [2021-03-25 11:52:46,133 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 33.0) internal successors, (429), 13 states have internal predecessors, (429), 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) [2021-03-25 11:52:46,134 INFO L185 Difference]: Start difference. First operand has 26 places, 23 transitions, 157 flow. Second operand 12 states and 198 transitions. [2021-03-25 11:52:46,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 54 transitions, 441 flow [2021-03-25 11:52:46,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 54 transitions, 432 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 11:52:46,137 INFO L241 Difference]: Finished difference. Result has 44 places, 44 transitions, 396 flow [2021-03-25 11:52:46,137 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=396, PETRI_PLACES=44, PETRI_TRANSITIONS=44} [2021-03-25 11:52:46,137 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 29 predicate places. [2021-03-25 11:52:46,137 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:46,137 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 44 transitions, 396 flow [2021-03-25 11:52:46,138 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 44 transitions, 396 flow [2021-03-25 11:52:46,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 44 transitions, 396 flow [2021-03-25 11:52:46,147 INFO L129 PetriNetUnfolder]: 32/99 cut-off events. [2021-03-25 11:52:46,147 INFO L130 PetriNetUnfolder]: For 289/295 co-relation queries the response was YES. [2021-03-25 11:52:46,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 99 events. 32/99 cut-off events. For 289/295 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 398 event pairs, 1 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 370. Up to 40 conditions per place. [2021-03-25 11:52:46,148 INFO L142 LiptonReduction]: Number of co-enabled transitions 64 [2021-03-25 11:52:46,151 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:46,151 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 11:52:46,151 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 11:52:46,151 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 44 transitions, 396 flow [2021-03-25 11:52:46,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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) [2021-03-25 11:52:46,151 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:46,151 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:46,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:46,366 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:46,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:46,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1746134755, now seen corresponding path program 1 times [2021-03-25 11:52:46,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:46,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280122950] [2021-03-25 11:52:46,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:46,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:46,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 11:52:46,423 INFO L142 QuantifierPusher]: treesize reduction 25, result has 52.8 percent of original size [2021-03-25 11:52:46,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 11:52:46,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:46,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:46,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280122950] [2021-03-25 11:52:46,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491213371] [2021-03-25 11:52:46,453 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 [2021-03-25 11:52:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:46,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 11:52:46,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:46,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:46,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:46,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:46,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:46,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:46,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:46,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:46,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:46,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:46,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:46,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:46,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:46,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:46,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:46,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:46,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:46,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:46,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:46,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:46,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:46,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:46,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:46,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 11:52:46,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 11:52:46,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 11:52:46,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 11:52:46,514 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-03-25 11:52:46,514 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:46,515 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:46,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 11:52:46,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 11:52:46,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 11:52:46,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 11:52:46,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 11:52:46,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 11:52:46,565 INFO L142 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-03-25 11:52:46,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,569 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 1] term [2021-03-25 11:52:46,569 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:46,570 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,572 INFO L147 QuantifierPusher]: treesize reduction 40, result has 57.0 percent of original size 53 [2021-03-25 11:52:46,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,573 INFO L142 QuantifierPusher]: treesize reduction 40, result has 63.0 percent of original size [2021-03-25 11:52:46,574 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:46,574 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,576 INFO L142 QuantifierPusher]: treesize reduction 20, result has 75.3 percent of original size [2021-03-25 11:52:46,578 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:46,579 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,580 INFO L142 QuantifierPusher]: treesize reduction 26, result has 57.4 percent of original size [2021-03-25 11:52:46,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:46,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 11:52:46,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 11:52:46,584 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:46,585 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,602 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:46,603 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 11:52:46,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 11:52:46,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 11:52:46,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 11:52:46,640 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-03-25 11:52:46,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:46,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:46,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 11:52:46,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,657 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:46,658 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:46,658 INFO L142 QuantifierPusher]: treesize reduction 21, result has 34.4 percent of original size [2021-03-25 11:52:46,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:46,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:46,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:46,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:46,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 11:52:46,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753835701] [2021-03-25 11:52:46,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 11:52:46,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:46,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 11:52:46,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-25 11:52:46,665 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2021-03-25 11:52:46,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 44 transitions, 396 flow. Second operand has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 11:52:46,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:46,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2021-03-25 11:52:46,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:46,842 INFO L129 PetriNetUnfolder]: 66/178 cut-off events. [2021-03-25 11:52:46,843 INFO L130 PetriNetUnfolder]: For 704/704 co-relation queries the response was YES. [2021-03-25 11:52:46,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 892 conditions, 178 events. 66/178 cut-off events. For 704/704 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 854 event pairs, 0 based on Foata normal form. 6/182 useless extension candidates. Maximal degree in co-relation 821. Up to 95 conditions per place. [2021-03-25 11:52:46,844 INFO L132 encePairwiseOnDemand]: 26/33 looper letters, 35 selfloop transitions, 32 changer transitions 8/79 dead transitions. [2021-03-25 11:52:46,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 79 transitions, 873 flow [2021-03-25 11:52:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 11:52:46,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 11:52:46,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 144 transitions. [2021-03-25 11:52:46,845 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39669421487603307 [2021-03-25 11:52:46,845 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 144 transitions. [2021-03-25 11:52:46,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 144 transitions. [2021-03-25 11:52:46,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:46,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 144 transitions. [2021-03-25 11:52:46,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 11 states have internal predecessors, (144), 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) [2021-03-25 11:52:46,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 33.0) internal successors, (396), 12 states have internal predecessors, (396), 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) [2021-03-25 11:52:46,847 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 33.0) internal successors, (396), 12 states have internal predecessors, (396), 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) [2021-03-25 11:52:46,847 INFO L185 Difference]: Start difference. First operand has 44 places, 44 transitions, 396 flow. Second operand 11 states and 144 transitions. [2021-03-25 11:52:46,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 79 transitions, 873 flow [2021-03-25 11:52:46,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 79 transitions, 774 flow, removed 46 selfloop flow, removed 1 redundant places. [2021-03-25 11:52:46,854 INFO L241 Difference]: Finished difference. Result has 58 places, 66 transitions, 653 flow [2021-03-25 11:52:46,854 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=653, PETRI_PLACES=58, PETRI_TRANSITIONS=66} [2021-03-25 11:52:46,854 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 43 predicate places. [2021-03-25 11:52:46,854 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:46,854 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 66 transitions, 653 flow [2021-03-25 11:52:46,854 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 66 transitions, 653 flow [2021-03-25 11:52:46,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 66 transitions, 653 flow [2021-03-25 11:52:46,866 INFO L129 PetriNetUnfolder]: 49/150 cut-off events. [2021-03-25 11:52:46,866 INFO L130 PetriNetUnfolder]: For 751/759 co-relation queries the response was YES. [2021-03-25 11:52:46,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 150 events. 49/150 cut-off events. For 751/759 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 736 event pairs, 4 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 656. Up to 55 conditions per place. [2021-03-25 11:52:46,868 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-25 11:52:46,951 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 11:52:46,951 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 11:52:46,951 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-03-25 11:52:46,951 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 66 transitions, 653 flow [2021-03-25 11:52:46,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 11 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 11:52:46,951 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:46,951 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:47,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:47,169 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:47,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:47,169 INFO L82 PathProgramCache]: Analyzing trace with hash -466674820, now seen corresponding path program 4 times [2021-03-25 11:52:47,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:47,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167215377] [2021-03-25 11:52:47,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:47,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:47,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:47,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:47,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167215377] [2021-03-25 11:52:47,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137272300] [2021-03-25 11:52:47,190 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 [2021-03-25 11:52:47,209 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-25 11:52:47,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 11:52:47,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-25 11:52:47,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:47,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:47,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:47,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:47,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:47,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:47,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:47,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:47,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:47,246 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-03-25 11:52:47,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,248 INFO L147 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size 5 [2021-03-25 11:52:47,249 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:47,250 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,254 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-03-25 11:52:47,255 INFO L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-03-25 11:52:47,255 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 11:52:47,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,263 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-03-25 11:52:47,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:47,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:47,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:47,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:47,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:47,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:47,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:47,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-03-25 11:52:47,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983786022] [2021-03-25 11:52:47,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 11:52:47,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:47,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 11:52:47,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-03-25 11:52:47,296 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2021-03-25 11:52:47,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 66 transitions, 653 flow. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 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) [2021-03-25 11:52:47,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:47,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2021-03-25 11:52:47,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:47,416 INFO L129 PetriNetUnfolder]: 67/194 cut-off events. [2021-03-25 11:52:47,417 INFO L130 PetriNetUnfolder]: For 1135/1137 co-relation queries the response was YES. [2021-03-25 11:52:47,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 194 events. 67/194 cut-off events. For 1135/1137 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1000 event pairs, 0 based on Foata normal form. 4/197 useless extension candidates. Maximal degree in co-relation 1008. Up to 60 conditions per place. [2021-03-25 11:52:47,418 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 43 selfloop transitions, 55 changer transitions 18/121 dead transitions. [2021-03-25 11:52:47,418 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 121 transitions, 1491 flow [2021-03-25 11:52:47,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 11:52:47,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 11:52:47,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 236 transitions. [2021-03-25 11:52:47,419 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44952380952380955 [2021-03-25 11:52:47,419 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 236 transitions. [2021-03-25 11:52:47,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 236 transitions. [2021-03-25 11:52:47,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:47,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 236 transitions. [2021-03-25 11:52:47,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 15.733333333333333) internal successors, (236), 15 states have internal predecessors, (236), 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) [2021-03-25 11:52:47,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 35.0) internal successors, (560), 16 states have internal predecessors, (560), 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) [2021-03-25 11:52:47,421 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 35.0) internal successors, (560), 16 states have internal predecessors, (560), 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) [2021-03-25 11:52:47,421 INFO L185 Difference]: Start difference. First operand has 57 places, 66 transitions, 653 flow. Second operand 15 states and 236 transitions. [2021-03-25 11:52:47,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 121 transitions, 1491 flow [2021-03-25 11:52:47,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 121 transitions, 1337 flow, removed 67 selfloop flow, removed 4 redundant places. [2021-03-25 11:52:47,428 INFO L241 Difference]: Finished difference. Result has 71 places, 96 transitions, 1008 flow [2021-03-25 11:52:47,428 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1008, PETRI_PLACES=71, PETRI_TRANSITIONS=96} [2021-03-25 11:52:47,428 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 56 predicate places. [2021-03-25 11:52:47,428 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:47,428 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 96 transitions, 1008 flow [2021-03-25 11:52:47,428 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 96 transitions, 1008 flow [2021-03-25 11:52:47,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 96 transitions, 1008 flow [2021-03-25 11:52:47,439 INFO L129 PetriNetUnfolder]: 58/178 cut-off events. [2021-03-25 11:52:47,439 INFO L130 PetriNetUnfolder]: For 892/896 co-relation queries the response was YES. [2021-03-25 11:52:47,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 880 conditions, 178 events. 58/178 cut-off events. For 892/896 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 929 event pairs, 1 based on Foata normal form. 1/178 useless extension candidates. Maximal degree in co-relation 808. Up to 56 conditions per place. [2021-03-25 11:52:47,441 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 11:52:47,448 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:47,448 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 11:52:47,448 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-25 11:52:47,449 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 96 transitions, 1008 flow [2021-03-25 11:52:47,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 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) [2021-03-25 11:52:47,449 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:47,449 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:47,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-03-25 11:52:47,663 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:47,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:47,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1682017489, now seen corresponding path program 1 times [2021-03-25 11:52:47,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:47,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939303175] [2021-03-25 11:52:47,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:47,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:47,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:47,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:47,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:47,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,693 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:47,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939303175] [2021-03-25 11:52:47,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924945985] [2021-03-25 11:52:47,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 11:52:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:47,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 11:52:47,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:47,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:47,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:47,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:47,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:47,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:47,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:47,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:47,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:47,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:47,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:47,762 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-25 11:52:47,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,764 INFO L147 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size 5 [2021-03-25 11:52:47,765 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:47,766 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,767 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-03-25 11:52:47,768 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 11:52:47,768 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 11:52:47,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:47,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:47,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:47,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:47,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:47,779 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-03-25 11:52:47,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,781 INFO L147 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size 5 [2021-03-25 11:52:47,783 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:47,784 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:47,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 11:52:47,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 11:52:47,798 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.9 percent of original size [2021-03-25 11:52:47,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:47,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:47,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:52:47,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:47,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:47,803 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:47,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:47,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 11:52:47,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914961457] [2021-03-25 11:52:47,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 11:52:47,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:47,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 11:52:47,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-25 11:52:47,805 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2021-03-25 11:52:47,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 96 transitions, 1008 flow. Second operand has 12 states, 12 states have (on average 14.166666666666666) internal successors, (170), 12 states have internal predecessors, (170), 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) [2021-03-25 11:52:47,806 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:47,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2021-03-25 11:52:47,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:47,916 INFO L129 PetriNetUnfolder]: 72/211 cut-off events. [2021-03-25 11:52:47,916 INFO L130 PetriNetUnfolder]: For 1314/1327 co-relation queries the response was YES. [2021-03-25 11:52:47,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1195 conditions, 211 events. 72/211 cut-off events. For 1314/1327 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1102 event pairs, 3 based on Foata normal form. 8/217 useless extension candidates. Maximal degree in co-relation 1117. Up to 112 conditions per place. [2021-03-25 11:52:47,917 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 72 selfloop transitions, 45 changer transitions 3/125 dead transitions. [2021-03-25 11:52:47,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 125 transitions, 1520 flow [2021-03-25 11:52:47,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 11:52:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 11:52:47,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 161 transitions. [2021-03-25 11:52:47,918 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46 [2021-03-25 11:52:47,918 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 161 transitions. [2021-03-25 11:52:47,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 161 transitions. [2021-03-25 11:52:47,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:47,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 161 transitions. [2021-03-25 11:52:47,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2021-03-25 11:52:47,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 35.0) internal successors, (385), 11 states have internal predecessors, (385), 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) [2021-03-25 11:52:47,920 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 35.0) internal successors, (385), 11 states have internal predecessors, (385), 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) [2021-03-25 11:52:47,920 INFO L185 Difference]: Start difference. First operand has 70 places, 96 transitions, 1008 flow. Second operand 10 states and 161 transitions. [2021-03-25 11:52:47,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 125 transitions, 1520 flow [2021-03-25 11:52:47,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 125 transitions, 1369 flow, removed 69 selfloop flow, removed 2 redundant places. [2021-03-25 11:52:47,927 INFO L241 Difference]: Finished difference. Result has 81 places, 115 transitions, 1235 flow [2021-03-25 11:52:47,927 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1235, PETRI_PLACES=81, PETRI_TRANSITIONS=115} [2021-03-25 11:52:47,927 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 66 predicate places. [2021-03-25 11:52:47,927 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:47,927 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 115 transitions, 1235 flow [2021-03-25 11:52:47,928 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 115 transitions, 1235 flow [2021-03-25 11:52:47,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 115 transitions, 1235 flow [2021-03-25 11:52:47,949 INFO L129 PetriNetUnfolder]: 70/206 cut-off events. [2021-03-25 11:52:47,949 INFO L130 PetriNetUnfolder]: For 1110/1113 co-relation queries the response was YES. [2021-03-25 11:52:47,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1037 conditions, 206 events. 70/206 cut-off events. For 1110/1113 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1093 event pairs, 1 based on Foata normal form. 1/207 useless extension candidates. Maximal degree in co-relation 963. Up to 60 conditions per place. [2021-03-25 11:52:47,951 INFO L142 LiptonReduction]: Number of co-enabled transitions 90 [2021-03-25 11:52:48,051 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 11:52:48,051 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 11:52:48,051 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 124 [2021-03-25 11:52:48,052 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 115 transitions, 1245 flow [2021-03-25 11:52:48,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 14.166666666666666) internal successors, (170), 12 states have internal predecessors, (170), 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) [2021-03-25 11:52:48,052 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:48,052 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:48,267 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:48,267 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:48,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:48,268 INFO L82 PathProgramCache]: Analyzing trace with hash -776748388, now seen corresponding path program 5 times [2021-03-25 11:52:48,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:48,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907811513] [2021-03-25 11:52:48,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:48,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:48,296 INFO L142 QuantifierPusher]: treesize reduction 21, result has 51.2 percent of original size [2021-03-25 11:52:48,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:48,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 11:52:48,316 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-03-25 11:52:48,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:48,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:48,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907811513] [2021-03-25 11:52:48,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473213611] [2021-03-25 11:52:48,337 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 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 [2021-03-25 11:52:48,355 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-25 11:52:48,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 11:52:48,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 11:52:48,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:48,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:48,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 11:52:48,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:48,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 11:52:48,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:48,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:48,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 11:52:48,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:48,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 11:52:48,394 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.7 percent of original size [2021-03-25 11:52:48,395 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:48,395 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:48,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 11:52:48,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 11:52:48,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:48,436 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.0 percent of original size 40 [2021-03-25 11:52:48,437 INFO L142 QuantifierPusher]: treesize reduction 6, result has 87.2 percent of original size [2021-03-25 11:52:48,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:48,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 11:52:48,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 11:52:48,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 11:52:48,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 11:52:48,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-25 11:52:48,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 11:52:48,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-25 11:52:48,474 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.7 percent of original size [2021-03-25 11:52:48,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,481 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 1] term [2021-03-25 11:52:48,481 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:48,481 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,484 INFO L147 QuantifierPusher]: treesize reduction 30, result has 66.3 percent of original size 59 [2021-03-25 11:52:48,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,486 INFO L142 QuantifierPusher]: treesize reduction 30, result has 70.6 percent of original size [2021-03-25 11:52:48,486 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:48,488 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,490 INFO L142 QuantifierPusher]: treesize reduction 51, result has 61.4 percent of original size [2021-03-25 11:52:48,491 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:48,491 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,492 INFO L142 QuantifierPusher]: treesize reduction 34, result has 52.1 percent of original size [2021-03-25 11:52:48,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 11:52:48,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 11:52:48,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 11:52:48,496 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:48,499 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,501 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-03-25 11:52:48,502 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 11:52:48,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 11:52:48,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 11:52:48,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 11:52:48,553 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-03-25 11:52:48,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 11:52:48,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 11:52:48,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 11:52:48,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,559 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:48,560 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:48,561 INFO L142 QuantifierPusher]: treesize reduction 19, result has 36.7 percent of original size [2021-03-25 11:52:48,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:48,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:48,568 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:48,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:48,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 11:52:48,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322597428] [2021-03-25 11:52:48,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 11:52:48,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:48,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 11:52:48,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-03-25 11:52:48,571 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2021-03-25 11:52:48,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 115 transitions, 1245 flow. Second operand has 13 states, 13 states have (on average 11.076923076923077) internal successors, (144), 13 states have internal predecessors, (144), 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) [2021-03-25 11:52:48,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:48,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2021-03-25 11:52:48,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:48,988 INFO L129 PetriNetUnfolder]: 117/350 cut-off events. [2021-03-25 11:52:48,988 INFO L130 PetriNetUnfolder]: For 2940/2986 co-relation queries the response was YES. [2021-03-25 11:52:48,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2084 conditions, 350 events. 117/350 cut-off events. For 2940/2986 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2130 event pairs, 3 based on Foata normal form. 24/373 useless extension candidates. Maximal degree in co-relation 1944. Up to 148 conditions per place. [2021-03-25 11:52:48,991 INFO L132 encePairwiseOnDemand]: 27/37 looper letters, 96 selfloop transitions, 95 changer transitions 19/214 dead transitions. [2021-03-25 11:52:48,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 214 transitions, 2812 flow [2021-03-25 11:52:48,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 11:52:48,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 11:52:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 217 transitions. [2021-03-25 11:52:48,992 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36655405405405406 [2021-03-25 11:52:48,992 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 217 transitions. [2021-03-25 11:52:48,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 217 transitions. [2021-03-25 11:52:48,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:48,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 217 transitions. [2021-03-25 11:52:48,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 13.5625) internal successors, (217), 16 states have internal predecessors, (217), 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) [2021-03-25 11:52:48,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 37.0) internal successors, (629), 17 states have internal predecessors, (629), 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) [2021-03-25 11:52:48,994 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 37.0) internal successors, (629), 17 states have internal predecessors, (629), 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) [2021-03-25 11:52:48,994 INFO L185 Difference]: Start difference. First operand has 81 places, 115 transitions, 1245 flow. Second operand 16 states and 217 transitions. [2021-03-25 11:52:48,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 214 transitions, 2812 flow [2021-03-25 11:52:49,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 214 transitions, 2745 flow, removed 21 selfloop flow, removed 2 redundant places. [2021-03-25 11:52:49,011 INFO L241 Difference]: Finished difference. Result has 103 places, 177 transitions, 2317 flow [2021-03-25 11:52:49,012 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2317, PETRI_PLACES=103, PETRI_TRANSITIONS=177} [2021-03-25 11:52:49,012 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 88 predicate places. [2021-03-25 11:52:49,012 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:49,012 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 177 transitions, 2317 flow [2021-03-25 11:52:49,012 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 177 transitions, 2317 flow [2021-03-25 11:52:49,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 177 transitions, 2317 flow [2021-03-25 11:52:49,037 INFO L129 PetriNetUnfolder]: 111/337 cut-off events. [2021-03-25 11:52:49,037 INFO L130 PetriNetUnfolder]: For 3542/3543 co-relation queries the response was YES. [2021-03-25 11:52:49,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 337 events. 111/337 cut-off events. For 3542/3543 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2087 event pairs, 5 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 1973. Up to 103 conditions per place. [2021-03-25 11:52:49,039 INFO L142 LiptonReduction]: Number of co-enabled transitions 132 [2021-03-25 11:52:49,115 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:49,115 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 11:52:49,115 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 103 [2021-03-25 11:52:49,115 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 176 transitions, 2309 flow [2021-03-25 11:52:49,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.076923076923077) internal successors, (144), 13 states have internal predecessors, (144), 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) [2021-03-25 11:52:49,116 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:49,116 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:49,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:49,330 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:49,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:49,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1250898011, now seen corresponding path program 2 times [2021-03-25 11:52:49,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:49,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601698620] [2021-03-25 11:52:49,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:49,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:49,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:49,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:49,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:49,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:49,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:49,374 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:49,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601698620] [2021-03-25 11:52:49,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159906822] [2021-03-25 11:52:49,374 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 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 [2021-03-25 11:52:49,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 11:52:49,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 11:52:49,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 11:52:49,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:49,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:49,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:49,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:49,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:49,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:49,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:49,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:49,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:49,420 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-03-25 11:52:49,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,422 INFO L147 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size 5 [2021-03-25 11:52:49,422 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:49,425 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,426 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-03-25 11:52:49,426 INFO L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-03-25 11:52:49,427 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 11:52:49,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:49,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:49,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:49,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:49,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:49,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:49,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:49,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:49,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:49,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:49,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:49,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:49,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:49,452 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-03-25 11:52:49,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,455 INFO L147 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size 5 [2021-03-25 11:52:49,456 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:49,458 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:49,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 11:52:49,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 11:52:49,472 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.9 percent of original size [2021-03-25 11:52:49,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:49,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:49,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:52:49,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:49,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:49,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:49,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:49,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:49,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:49,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:49,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:49,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:49,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:49,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 11:52:49,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217839852] [2021-03-25 11:52:49,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 11:52:49,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:49,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 11:52:49,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-03-25 11:52:49,479 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2021-03-25 11:52:49,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 176 transitions, 2309 flow. Second operand has 12 states, 12 states have (on average 14.166666666666666) internal successors, (170), 12 states have internal predecessors, (170), 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) [2021-03-25 11:52:49,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:49,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2021-03-25 11:52:49,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:49,691 INFO L129 PetriNetUnfolder]: 139/413 cut-off events. [2021-03-25 11:52:49,691 INFO L130 PetriNetUnfolder]: For 5688/5730 co-relation queries the response was YES. [2021-03-25 11:52:49,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2840 conditions, 413 events. 139/413 cut-off events. For 5688/5730 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2640 event pairs, 7 based on Foata normal form. 17/430 useless extension candidates. Maximal degree in co-relation 2730. Up to 129 conditions per place. [2021-03-25 11:52:49,694 INFO L132 encePairwiseOnDemand]: 30/38 looper letters, 102 selfloop transitions, 118 changer transitions 5/230 dead transitions. [2021-03-25 11:52:49,694 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 230 transitions, 3434 flow [2021-03-25 11:52:49,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 11:52:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 11:52:49,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 245 transitions. [2021-03-25 11:52:49,695 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4298245614035088 [2021-03-25 11:52:49,695 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 245 transitions. [2021-03-25 11:52:49,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 245 transitions. [2021-03-25 11:52:49,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:49,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 245 transitions. [2021-03-25 11:52:49,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 16.333333333333332) internal successors, (245), 15 states have internal predecessors, (245), 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) [2021-03-25 11:52:49,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 38.0) internal successors, (608), 16 states have internal predecessors, (608), 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) [2021-03-25 11:52:49,697 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 38.0) internal successors, (608), 16 states have internal predecessors, (608), 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) [2021-03-25 11:52:49,697 INFO L185 Difference]: Start difference. First operand has 101 places, 176 transitions, 2309 flow. Second operand 15 states and 245 transitions. [2021-03-25 11:52:49,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 230 transitions, 3434 flow [2021-03-25 11:52:49,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 230 transitions, 3214 flow, removed 101 selfloop flow, removed 5 redundant places. [2021-03-25 11:52:49,720 INFO L241 Difference]: Finished difference. Result has 115 places, 211 transitions, 2914 flow [2021-03-25 11:52:49,720 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2119, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2914, PETRI_PLACES=115, PETRI_TRANSITIONS=211} [2021-03-25 11:52:49,720 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 100 predicate places. [2021-03-25 11:52:49,720 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:49,721 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 211 transitions, 2914 flow [2021-03-25 11:52:49,721 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 211 transitions, 2914 flow [2021-03-25 11:52:49,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 115 places, 211 transitions, 2914 flow [2021-03-25 11:52:49,751 INFO L129 PetriNetUnfolder]: 138/414 cut-off events. [2021-03-25 11:52:49,752 INFO L130 PetriNetUnfolder]: For 4818/4819 co-relation queries the response was YES. [2021-03-25 11:52:49,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2605 conditions, 414 events. 138/414 cut-off events. For 4818/4819 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2728 event pairs, 5 based on Foata normal form. 1/415 useless extension candidates. Maximal degree in co-relation 2448. Up to 113 conditions per place. [2021-03-25 11:52:49,755 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 11:52:49,813 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:49,813 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 11:52:49,813 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 93 [2021-03-25 11:52:49,814 INFO L480 AbstractCegarLoop]: Abstraction has has 115 places, 211 transitions, 2926 flow [2021-03-25 11:52:49,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 14.166666666666666) internal successors, (170), 12 states have internal predecessors, (170), 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) [2021-03-25 11:52:49,814 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:49,814 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:50,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-03-25 11:52:50,028 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:50,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:50,029 INFO L82 PathProgramCache]: Analyzing trace with hash 545619308, now seen corresponding path program 1 times [2021-03-25 11:52:50,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:50,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081119747] [2021-03-25 11:52:50,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:50,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:50,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:50,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:50,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:50,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:50,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081119747] [2021-03-25 11:52:50,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953147863] [2021-03-25 11:52:50,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 11:52:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:50,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 11:52:50,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:50,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:50,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:50,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:50,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:50,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:50,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:50,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:50,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:50,121 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-25 11:52:50,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,122 INFO L147 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size 5 [2021-03-25 11:52:50,123 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:50,123 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,124 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-03-25 11:52:50,125 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 11:52:50,125 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 11:52:50,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 11:52:50,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:50,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 11:52:50,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:50,134 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.6 percent of original size [2021-03-25 11:52:50,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,135 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 11:52:50,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,136 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:50,137 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:50,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:50,138 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:50,139 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,139 INFO L142 QuantifierPusher]: treesize reduction 24, result has 45.5 percent of original size [2021-03-25 11:52:50,140 INFO L147 QuantifierPusher]: treesize reduction 8, result has 27.3 percent of original size 3 [2021-03-25 11:52:50,140 INFO L147 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size 7 [2021-03-25 11:52:50,141 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 11:52:50,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:50,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:50,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:50,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:50,167 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-03-25 11:52:50,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,168 INFO L147 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size 5 [2021-03-25 11:52:50,169 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:50,169 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:50,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 11:52:50,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 11:52:50,184 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.9 percent of original size [2021-03-25 11:52:50,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:52:50,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:50,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:50,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 11:52:50,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161790704] [2021-03-25 11:52:50,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 11:52:50,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:50,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 11:52:50,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-03-25 11:52:50,190 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39 [2021-03-25 11:52:50,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 211 transitions, 2926 flow. Second operand has 12 states, 12 states have (on average 14.166666666666666) internal successors, (170), 12 states have internal predecessors, (170), 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) [2021-03-25 11:52:50,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:50,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39 [2021-03-25 11:52:50,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:50,377 INFO L129 PetriNetUnfolder]: 173/508 cut-off events. [2021-03-25 11:52:50,377 INFO L130 PetriNetUnfolder]: For 6842/6901 co-relation queries the response was YES. [2021-03-25 11:52:50,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3558 conditions, 508 events. 173/508 cut-off events. For 6842/6901 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3462 event pairs, 7 based on Foata normal form. 15/523 useless extension candidates. Maximal degree in co-relation 3377. Up to 273 conditions per place. [2021-03-25 11:52:50,381 INFO L132 encePairwiseOnDemand]: 31/39 looper letters, 173 selfloop transitions, 107 changer transitions 2/287 dead transitions. [2021-03-25 11:52:50,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 287 transitions, 4455 flow [2021-03-25 11:52:50,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 11:52:50,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 11:52:50,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 252 transitions. [2021-03-25 11:52:50,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40384615384615385 [2021-03-25 11:52:50,382 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 252 transitions. [2021-03-25 11:52:50,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 252 transitions. [2021-03-25 11:52:50,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:50,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 252 transitions. [2021-03-25 11:52:50,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 15.75) internal successors, (252), 16 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) [2021-03-25 11:52:50,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 39.0) internal successors, (663), 17 states have internal predecessors, (663), 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) [2021-03-25 11:52:50,384 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 39.0) internal successors, (663), 17 states have internal predecessors, (663), 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) [2021-03-25 11:52:50,384 INFO L185 Difference]: Start difference. First operand has 115 places, 211 transitions, 2926 flow. Second operand 16 states and 252 transitions. [2021-03-25 11:52:50,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 287 transitions, 4455 flow [2021-03-25 11:52:50,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 287 transitions, 4170 flow, removed 109 selfloop flow, removed 6 redundant places. [2021-03-25 11:52:50,410 INFO L241 Difference]: Finished difference. Result has 127 places, 262 transitions, 3688 flow [2021-03-25 11:52:50,410 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=2745, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3688, PETRI_PLACES=127, PETRI_TRANSITIONS=262} [2021-03-25 11:52:50,410 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 112 predicate places. [2021-03-25 11:52:50,410 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:50,410 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 262 transitions, 3688 flow [2021-03-25 11:52:50,410 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 262 transitions, 3688 flow [2021-03-25 11:52:50,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 262 transitions, 3688 flow [2021-03-25 11:52:50,447 INFO L129 PetriNetUnfolder]: 172/510 cut-off events. [2021-03-25 11:52:50,447 INFO L130 PetriNetUnfolder]: For 5938/5939 co-relation queries the response was YES. [2021-03-25 11:52:50,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3276 conditions, 510 events. 172/510 cut-off events. For 5938/5939 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3536 event pairs, 4 based on Foata normal form. 1/511 useless extension candidates. Maximal degree in co-relation 3113. Up to 143 conditions per place. [2021-03-25 11:52:50,451 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-25 11:52:50,464 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:50,464 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 11:52:50,464 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-25 11:52:50,464 INFO L480 AbstractCegarLoop]: Abstraction has has 127 places, 262 transitions, 3688 flow [2021-03-25 11:52:50,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 14.166666666666666) internal successors, (170), 12 states have internal predecessors, (170), 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) [2021-03-25 11:52:50,465 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:50,465 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:50,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:50,680 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:50,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:50,680 INFO L82 PathProgramCache]: Analyzing trace with hash 2033600718, now seen corresponding path program 1 times [2021-03-25 11:52:50,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:50,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794661989] [2021-03-25 11:52:50,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:50,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:50,716 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-25 11:52:50,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,717 INFO L142 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size [2021-03-25 11:52:50,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:50,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:50,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794661989] [2021-03-25 11:52:50,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871512252] [2021-03-25 11:52:50,720 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) [2021-03-25 11:52:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:50,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-25 11:52:50,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:50,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:50,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:50,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:50,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:50,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:50,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 11:52:50,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 11:52:50,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 11:52:50,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 11:52:50,795 INFO L142 QuantifierPusher]: treesize reduction 192, result has 23.8 percent of original size [2021-03-25 11:52:50,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,798 INFO L147 QuantifierPusher]: treesize reduction 6, result has 73.9 percent of original size 17 [2021-03-25 11:52:50,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,798 INFO L142 QuantifierPusher]: treesize reduction 6, result has 85.7 percent of original size [2021-03-25 11:52:50,798 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:50,799 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,800 INFO L142 QuantifierPusher]: treesize reduction 26, result has 50.9 percent of original size [2021-03-25 11:52:50,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:50,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:50,801 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:50,801 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:50,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 11:52:50,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 11:52:50,819 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.7 percent of original size [2021-03-25 11:52:50,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 11:52:50,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:50,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 11:52:50,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:50,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:50,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:50,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:50,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:50,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:50,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:50,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:50,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-03-25 11:52:50,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12279998] [2021-03-25 11:52:50,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 11:52:50,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:50,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 11:52:50,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 11:52:50,837 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39 [2021-03-25 11:52:50,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 262 transitions, 3688 flow. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 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) [2021-03-25 11:52:50,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:50,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39 [2021-03-25 11:52:50,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:51,000 INFO L129 PetriNetUnfolder]: 176/534 cut-off events. [2021-03-25 11:52:51,001 INFO L130 PetriNetUnfolder]: For 6378/6381 co-relation queries the response was YES. [2021-03-25 11:52:51,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3841 conditions, 534 events. 176/534 cut-off events. For 6378/6381 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3663 event pairs, 0 based on Foata normal form. 4/538 useless extension candidates. Maximal degree in co-relation 3646. Up to 167 conditions per place. [2021-03-25 11:52:51,005 INFO L132 encePairwiseOnDemand]: 30/39 looper letters, 157 selfloop transitions, 123 changer transitions 15/300 dead transitions. [2021-03-25 11:52:51,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 300 transitions, 4962 flow [2021-03-25 11:52:51,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 11:52:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 11:52:51,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 173 transitions. [2021-03-25 11:52:51,006 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40326340326340326 [2021-03-25 11:52:51,006 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 173 transitions. [2021-03-25 11:52:51,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 173 transitions. [2021-03-25 11:52:51,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:51,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 173 transitions. [2021-03-25 11:52:51,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 15.727272727272727) internal successors, (173), 11 states have internal predecessors, (173), 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) [2021-03-25 11:52:51,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 39.0) internal successors, (468), 12 states have internal predecessors, (468), 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) [2021-03-25 11:52:51,008 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 39.0) internal successors, (468), 12 states have internal predecessors, (468), 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) [2021-03-25 11:52:51,008 INFO L185 Difference]: Start difference. First operand has 127 places, 262 transitions, 3688 flow. Second operand 11 states and 173 transitions. [2021-03-25 11:52:51,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 300 transitions, 4962 flow [2021-03-25 11:52:51,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 300 transitions, 4764 flow, removed 71 selfloop flow, removed 5 redundant places. [2021-03-25 11:52:51,039 INFO L241 Difference]: Finished difference. Result has 135 places, 271 transitions, 4055 flow [2021-03-25 11:52:51,039 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3509, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4055, PETRI_PLACES=135, PETRI_TRANSITIONS=271} [2021-03-25 11:52:51,039 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 120 predicate places. [2021-03-25 11:52:51,040 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:51,040 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 271 transitions, 4055 flow [2021-03-25 11:52:51,040 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 271 transitions, 4055 flow [2021-03-25 11:52:51,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 271 transitions, 4055 flow [2021-03-25 11:52:51,082 INFO L129 PetriNetUnfolder]: 174/524 cut-off events. [2021-03-25 11:52:51,082 INFO L130 PetriNetUnfolder]: For 7041/7042 co-relation queries the response was YES. [2021-03-25 11:52:51,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3573 conditions, 524 events. 174/524 cut-off events. For 7041/7042 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3665 event pairs, 4 based on Foata normal form. 1/525 useless extension candidates. Maximal degree in co-relation 3397. Up to 138 conditions per place. [2021-03-25 11:52:51,089 INFO L142 LiptonReduction]: Number of co-enabled transitions 222 [2021-03-25 11:52:51,103 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:51,103 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 11:52:51,103 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-03-25 11:52:51,103 INFO L480 AbstractCegarLoop]: Abstraction has has 133 places, 271 transitions, 4055 flow [2021-03-25 11:52:51,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 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) [2021-03-25 11:52:51,104 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:51,104 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:51,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-03-25 11:52:51,320 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:51,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:51,321 INFO L82 PathProgramCache]: Analyzing trace with hash 2082222176, now seen corresponding path program 1 times [2021-03-25 11:52:51,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:51,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583960818] [2021-03-25 11:52:51,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:51,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:51,343 INFO L142 QuantifierPusher]: treesize reduction 62, result has 60.8 percent of original size [2021-03-25 11:52:51,344 INFO L147 QuantifierPusher]: treesize reduction 13, result has 86.5 percent of original size 83 [2021-03-25 11:52:51,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:51,385 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-25 11:52:51,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:52:51,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:51,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:51,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:51,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583960818] [2021-03-25 11:52:51,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144201620] [2021-03-25 11:52:51,402 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 [2021-03-25 11:52:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:51,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 11:52:51,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:51,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:51,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:51,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:51,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:51,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:51,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:51,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:51,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:51,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:51,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:51,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:51,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:51,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:51,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:51,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:51,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:51,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:51,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 11:52:51,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-03-25 11:52:51,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 11:52:51,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-03-25 11:52:51,449 INFO L142 QuantifierPusher]: treesize reduction 110, result has 42.1 percent of original size [2021-03-25 11:52:51,449 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:51,449 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,450 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:51,451 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:51,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:51,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 11:52:51,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 11:52:51,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:51,496 INFO L147 QuantifierPusher]: treesize reduction 8, result has 85.2 percent of original size 46 [2021-03-25 11:52:51,497 INFO L142 QuantifierPusher]: treesize reduction 8, result has 85.5 percent of original size [2021-03-25 11:52:51,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:51,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 11:52:51,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 11:52:51,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 11:52:51,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 11:52:51,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 11:52:51,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 11:52:51,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 11:52:51,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 11:52:51,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 11:52:51,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 11:52:51,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 11:52:51,547 INFO L142 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-03-25 11:52:51,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,548 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 1] term [2021-03-25 11:52:51,549 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:51,549 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,550 INFO L147 QuantifierPusher]: treesize reduction 4, result has 95.7 percent of original size 89 [2021-03-25 11:52:51,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,551 INFO L142 QuantifierPusher]: treesize reduction 4, result has 96.3 percent of original size [2021-03-25 11:52:51,551 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:51,552 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,553 INFO L142 QuantifierPusher]: treesize reduction 57, result has 70.6 percent of original size [2021-03-25 11:52:51,553 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:51,553 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,554 INFO L142 QuantifierPusher]: treesize reduction 26, result has 57.4 percent of original size [2021-03-25 11:52:51,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:51,555 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:51,556 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,556 INFO L142 QuantifierPusher]: treesize reduction 34, result has 55.8 percent of original size [2021-03-25 11:52:51,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 11:52:51,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-25 11:52:51,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-25 11:52:51,559 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:51,559 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,561 INFO L725 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2021-03-25 11:52:51,561 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 11:52:51,563 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:51,564 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 11:52:51,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-03-25 11:52:51,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 11:52:51,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 11:52:51,604 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-03-25 11:52:51,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:51,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:51,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 11:52:51,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,607 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:51,608 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:51,608 INFO L142 QuantifierPusher]: treesize reduction 21, result has 34.4 percent of original size [2021-03-25 11:52:51,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:51,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:51,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:51,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:51,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:51,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:51,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:51,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:51,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:51,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:51,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:51,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:51,615 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:51,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:51,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2021-03-25 11:52:51,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210669408] [2021-03-25 11:52:51,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 11:52:51,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:51,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 11:52:51,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-03-25 11:52:51,615 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2021-03-25 11:52:51,616 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 271 transitions, 4055 flow. Second operand has 12 states, 12 states have (on average 11.25) internal successors, (135), 12 states have internal predecessors, (135), 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) [2021-03-25 11:52:51,616 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:51,616 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2021-03-25 11:52:51,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:51,940 INFO L129 PetriNetUnfolder]: 207/638 cut-off events. [2021-03-25 11:52:51,940 INFO L130 PetriNetUnfolder]: For 12333/12336 co-relation queries the response was YES. [2021-03-25 11:52:51,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5148 conditions, 638 events. 207/638 cut-off events. For 12333/12336 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4701 event pairs, 6 based on Foata normal form. 13/651 useless extension candidates. Maximal degree in co-relation 4898. Up to 381 conditions per place. [2021-03-25 11:52:51,945 INFO L132 encePairwiseOnDemand]: 28/39 looper letters, 249 selfloop transitions, 62 changer transitions 18/333 dead transitions. [2021-03-25 11:52:51,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 333 transitions, 5949 flow [2021-03-25 11:52:51,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 11:52:51,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 11:52:51,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 194 transitions. [2021-03-25 11:52:51,947 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3553113553113553 [2021-03-25 11:52:51,947 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 194 transitions. [2021-03-25 11:52:51,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 194 transitions. [2021-03-25 11:52:51,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:51,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 194 transitions. [2021-03-25 11:52:51,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 13.857142857142858) internal successors, (194), 14 states have internal predecessors, (194), 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) [2021-03-25 11:52:51,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 39.0) internal successors, (585), 15 states have internal predecessors, (585), 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) [2021-03-25 11:52:51,951 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 39.0) internal successors, (585), 15 states have internal predecessors, (585), 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) [2021-03-25 11:52:51,951 INFO L185 Difference]: Start difference. First operand has 133 places, 271 transitions, 4055 flow. Second operand 14 states and 194 transitions. [2021-03-25 11:52:51,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 333 transitions, 5949 flow [2021-03-25 11:52:51,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 333 transitions, 5801 flow, removed 51 selfloop flow, removed 3 redundant places. [2021-03-25 11:52:52,003 INFO L241 Difference]: Finished difference. Result has 149 places, 299 transitions, 4725 flow [2021-03-25 11:52:52,003 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3959, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4725, PETRI_PLACES=149, PETRI_TRANSITIONS=299} [2021-03-25 11:52:52,003 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 134 predicate places. [2021-03-25 11:52:52,003 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:52,003 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 299 transitions, 4725 flow [2021-03-25 11:52:52,004 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 299 transitions, 4725 flow [2021-03-25 11:52:52,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 299 transitions, 4725 flow [2021-03-25 11:52:52,058 INFO L129 PetriNetUnfolder]: 202/631 cut-off events. [2021-03-25 11:52:52,059 INFO L130 PetriNetUnfolder]: For 12178/12179 co-relation queries the response was YES. [2021-03-25 11:52:52,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4682 conditions, 631 events. 202/631 cut-off events. For 12178/12179 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4722 event pairs, 9 based on Foata normal form. 0/631 useless extension candidates. Maximal degree in co-relation 4517. Up to 174 conditions per place. [2021-03-25 11:52:52,065 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-25 11:52:52,131 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:52,131 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 11:52:52,131 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 128 [2021-03-25 11:52:52,132 INFO L480 AbstractCegarLoop]: Abstraction has has 148 places, 298 transitions, 4715 flow [2021-03-25 11:52:52,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 12 states have internal predecessors, (135), 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) [2021-03-25 11:52:52,132 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:52,132 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:52,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-03-25 11:52:52,347 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:52,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:52,347 INFO L82 PathProgramCache]: Analyzing trace with hash 280462496, now seen corresponding path program 2 times [2021-03-25 11:52:52,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:52,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833657031] [2021-03-25 11:52:52,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:52,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:52,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:52,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:52,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:52,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,382 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-25 11:52:52,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833657031] [2021-03-25 11:52:52,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527294651] [2021-03-25 11:52:52,382 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 [2021-03-25 11:52:52,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 11:52:52,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 11:52:52,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-25 11:52:52,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:52,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:52,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:52,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:52,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:52,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:52,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:52,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:52,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:52,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:52:52,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:52,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 11:52:52,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:52:52,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:52,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 11:52:52,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:52,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:52,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:52,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:52,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:52,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:52,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-25 11:52:52,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 11:52:52,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-25 11:52:52,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 11:52:52,433 INFO L142 QuantifierPusher]: treesize reduction 244, result has 30.1 percent of original size [2021-03-25 11:52:52,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,435 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:52,435 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,436 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:52,437 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:52,440 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:52,441 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:52,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 11:52:52,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 11:52:52,445 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:52,445 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,446 INFO L142 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-03-25 11:52:52,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,448 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:52,448 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,449 INFO L142 QuantifierPusher]: treesize reduction 30, result has 56.5 percent of original size [2021-03-25 11:52:52,450 INFO L147 QuantifierPusher]: treesize reduction -4, result has 110.8 percent of original size 41 [2021-03-25 11:52:52,452 INFO L147 QuantifierPusher]: treesize reduction -4, result has 110.8 percent of original size 41 [2021-03-25 11:52:52,453 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:52,453 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,455 INFO L142 QuantifierPusher]: treesize reduction -4, result has 108.9 percent of original size [2021-03-25 11:52:52,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,474 INFO L142 QuantifierPusher]: treesize reduction 3, result has 96.0 percent of original size [2021-03-25 11:52:52,477 INFO L147 QuantifierPusher]: treesize reduction 21, result has 84.2 percent of original size 112 [2021-03-25 11:52:52,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,478 INFO L142 QuantifierPusher]: treesize reduction 11, result has 89.4 percent of original size [2021-03-25 11:52:52,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,524 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.9 percent of original size 35 [2021-03-25 11:52:52,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,525 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.1 percent of original size [2021-03-25 11:52:52,526 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.5 percent of original size 41 [2021-03-25 11:52:52,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,528 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size [2021-03-25 11:52:52,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,530 INFO L147 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size 32 [2021-03-25 11:52:52,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,532 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:52,532 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,533 INFO L142 QuantifierPusher]: treesize reduction 24, result has 57.9 percent of original size [2021-03-25 11:52:52,534 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size 22 [2021-03-25 11:52:52,534 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size 22 [2021-03-25 11:52:52,535 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:52,535 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,536 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.4 percent of original size [2021-03-25 11:52:52,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:52,539 INFO L147 QuantifierPusher]: treesize reduction 18, result has 68.4 percent of original size 39 [2021-03-25 11:52:52,539 INFO L147 QuantifierPusher]: treesize reduction 18, result has 71.9 percent of original size 46 [2021-03-25 11:52:52,540 INFO L142 QuantifierPusher]: treesize reduction 18, result has 71.9 percent of original size [2021-03-25 11:52:52,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 11:52:52,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 11:52:52,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 11:52:52,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 11:52:52,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 11:52:52,564 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-25 11:52:52,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,565 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:52,566 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,568 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.6 percent of original size 19 [2021-03-25 11:52:52,568 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.6 percent of original size 19 [2021-03-25 11:52:52,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,569 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.8 percent of original size [2021-03-25 11:52:52,569 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:52,569 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:52,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:52,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:52,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:52,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:52,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:52,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:52,590 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-25 11:52:52,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:52,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-03-25 11:52:52,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304565434] [2021-03-25 11:52:52,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 11:52:52,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:52,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 11:52:52,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-25 11:52:52,591 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2021-03-25 11:52:52,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 298 transitions, 4715 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2021-03-25 11:52:52,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:52,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2021-03-25 11:52:52,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:52,803 INFO L129 PetriNetUnfolder]: 202/610 cut-off events. [2021-03-25 11:52:52,803 INFO L130 PetriNetUnfolder]: For 12765/12780 co-relation queries the response was YES. [2021-03-25 11:52:52,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5053 conditions, 610 events. 202/610 cut-off events. For 12765/12780 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4408 event pairs, 11 based on Foata normal form. 13/623 useless extension candidates. Maximal degree in co-relation 4902. Up to 405 conditions per place. [2021-03-25 11:52:52,810 INFO L132 encePairwiseOnDemand]: 31/40 looper letters, 246 selfloop transitions, 55 changer transitions 11/316 dead transitions. [2021-03-25 11:52:52,810 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 316 transitions, 5694 flow [2021-03-25 11:52:52,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 11:52:52,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 11:52:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 137 transitions. [2021-03-25 11:52:52,811 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3425 [2021-03-25 11:52:52,811 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 137 transitions. [2021-03-25 11:52:52,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 137 transitions. [2021-03-25 11:52:52,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:52,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 137 transitions. [2021-03-25 11:52:52,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 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) [2021-03-25 11:52:52,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 40.0) internal successors, (440), 11 states have internal predecessors, (440), 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) [2021-03-25 11:52:52,814 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 40.0) internal successors, (440), 11 states have internal predecessors, (440), 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) [2021-03-25 11:52:52,814 INFO L185 Difference]: Start difference. First operand has 148 places, 298 transitions, 4715 flow. Second operand 10 states and 137 transitions. [2021-03-25 11:52:52,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 316 transitions, 5694 flow [2021-03-25 11:52:52,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 316 transitions, 5475 flow, removed 88 selfloop flow, removed 5 redundant places. [2021-03-25 11:52:52,874 INFO L241 Difference]: Finished difference. Result has 152 places, 297 transitions, 4621 flow [2021-03-25 11:52:52,874 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=4419, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4621, PETRI_PLACES=152, PETRI_TRANSITIONS=297} [2021-03-25 11:52:52,874 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 137 predicate places. [2021-03-25 11:52:52,874 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:52,874 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 297 transitions, 4621 flow [2021-03-25 11:52:52,875 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 297 transitions, 4621 flow [2021-03-25 11:52:52,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 297 transitions, 4621 flow [2021-03-25 11:52:52,928 INFO L129 PetriNetUnfolder]: 201/610 cut-off events. [2021-03-25 11:52:52,928 INFO L130 PetriNetUnfolder]: For 9402/9404 co-relation queries the response was YES. [2021-03-25 11:52:52,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4412 conditions, 610 events. 201/610 cut-off events. For 9402/9404 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4461 event pairs, 9 based on Foata normal form. 0/610 useless extension candidates. Maximal degree in co-relation 4178. Up to 170 conditions per place. [2021-03-25 11:52:52,935 INFO L142 LiptonReduction]: Number of co-enabled transitions 232 [2021-03-25 11:52:52,948 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:52,949 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 11:52:52,949 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-25 11:52:52,950 INFO L480 AbstractCegarLoop]: Abstraction has has 152 places, 297 transitions, 4621 flow [2021-03-25 11:52:52,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2021-03-25 11:52:52,950 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:52,950 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:53,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:53,164 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:53,164 INFO L82 PathProgramCache]: Analyzing trace with hash 92414398, now seen corresponding path program 1 times [2021-03-25 11:52:53,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:53,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840869045] [2021-03-25 11:52:53,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:53,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:53,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:53,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:53,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:53,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:53,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,195 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:53,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840869045] [2021-03-25 11:52:53,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372034750] [2021-03-25 11:52:53,195 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 [2021-03-25 11:52:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:53,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-25 11:52:53,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:53,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:53,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:53,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:53,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:53,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:53,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:53,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:53,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:53,307 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-03-25 11:52:53,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,309 INFO L147 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size 5 [2021-03-25 11:52:53,309 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:53,309 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,310 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-03-25 11:52:53,310 INFO L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-03-25 11:52:53,311 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 11:52:53,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:53,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:53,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 11:52:53,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:53,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 11:52:53,321 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-03-25 11:52:53,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,323 INFO L147 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size 5 [2021-03-25 11:52:53,323 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:53,324 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:53,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 11:52:53,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 11:52:53,342 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.7 percent of original size [2021-03-25 11:52:53,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 11:52:53,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:53,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 11:52:53,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:53,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:53,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:53,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:53,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:53,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:53,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:53,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:53,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:53,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:53,359 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:53,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:53,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2021-03-25 11:52:53,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154198831] [2021-03-25 11:52:53,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 11:52:53,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:53,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 11:52:53,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-25 11:52:53,363 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2021-03-25 11:52:53,364 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 297 transitions, 4621 flow. Second operand has 11 states, 11 states have (on average 14.181818181818182) internal successors, (156), 11 states have internal predecessors, (156), 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) [2021-03-25 11:52:53,364 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:53,364 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2021-03-25 11:52:53,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:53,797 INFO L129 PetriNetUnfolder]: 283/862 cut-off events. [2021-03-25 11:52:53,797 INFO L130 PetriNetUnfolder]: For 16258/16273 co-relation queries the response was YES. [2021-03-25 11:52:53,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7085 conditions, 862 events. 283/862 cut-off events. For 16258/16273 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6746 event pairs, 0 based on Foata normal form. 5/867 useless extension candidates. Maximal degree in co-relation 6710. Up to 251 conditions per place. [2021-03-25 11:52:53,805 INFO L132 encePairwiseOnDemand]: 30/40 looper letters, 126 selfloop transitions, 323 changer transitions 31/485 dead transitions. [2021-03-25 11:52:53,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 485 transitions, 9105 flow [2021-03-25 11:52:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-25 11:52:53,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-03-25 11:52:53,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 400 transitions. [2021-03-25 11:52:53,807 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4 [2021-03-25 11:52:53,807 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 400 transitions. [2021-03-25 11:52:53,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 400 transitions. [2021-03-25 11:52:53,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:53,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 400 transitions. [2021-03-25 11:52:53,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 16.0) internal successors, (400), 25 states have internal predecessors, (400), 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) [2021-03-25 11:52:53,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 40.0) internal successors, (1040), 26 states have internal predecessors, (1040), 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) [2021-03-25 11:52:53,809 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 40.0) internal successors, (1040), 26 states have internal predecessors, (1040), 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) [2021-03-25 11:52:53,809 INFO L185 Difference]: Start difference. First operand has 152 places, 297 transitions, 4621 flow. Second operand 25 states and 400 transitions. [2021-03-25 11:52:53,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 485 transitions, 9105 flow [2021-03-25 11:52:53,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 485 transitions, 9001 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-03-25 11:52:53,875 INFO L241 Difference]: Finished difference. Result has 180 places, 425 transitions, 8138 flow [2021-03-25 11:52:53,875 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=4537, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=213, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=8138, PETRI_PLACES=180, PETRI_TRANSITIONS=425} [2021-03-25 11:52:53,875 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 165 predicate places. [2021-03-25 11:52:53,875 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:53,875 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 425 transitions, 8138 flow [2021-03-25 11:52:53,876 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 425 transitions, 8138 flow [2021-03-25 11:52:53,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 178 places, 425 transitions, 8138 flow [2021-03-25 11:52:53,964 INFO L129 PetriNetUnfolder]: 274/829 cut-off events. [2021-03-25 11:52:53,965 INFO L130 PetriNetUnfolder]: For 19522/19627 co-relation queries the response was YES. [2021-03-25 11:52:53,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7028 conditions, 829 events. 274/829 cut-off events. For 19522/19627 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 6440 event pairs, 6 based on Foata normal form. 0/829 useless extension candidates. Maximal degree in co-relation 6905. Up to 244 conditions per place. [2021-03-25 11:52:53,973 INFO L142 LiptonReduction]: Number of co-enabled transitions 284 [2021-03-25 11:52:53,999 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:53,999 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 11:52:53,999 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 124 [2021-03-25 11:52:54,003 INFO L480 AbstractCegarLoop]: Abstraction has has 178 places, 425 transitions, 8138 flow [2021-03-25 11:52:54,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 14.181818181818182) internal successors, (156), 11 states have internal predecessors, (156), 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) [2021-03-25 11:52:54,003 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:54,003 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:54,217 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-03-25 11:52:54,218 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:54,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:54,219 INFO L82 PathProgramCache]: Analyzing trace with hash -395908273, now seen corresponding path program 1 times [2021-03-25 11:52:54,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:54,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814666470] [2021-03-25 11:52:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:54,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:54,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 11:52:54,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 11:52:54,263 INFO L142 QuantifierPusher]: treesize reduction 25, result has 52.8 percent of original size [2021-03-25 11:52:54,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 11:52:54,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:54,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:54,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814666470] [2021-03-25 11:52:54,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134505567] [2021-03-25 11:52:54,289 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 [2021-03-25 11:52:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:54,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-25 11:52:54,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:54,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:54,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:54,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:54,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:54,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:54,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:54,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:54,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:54,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:54,319 INFO L147 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size 27 [2021-03-25 11:52:54,320 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.3 percent of original size [2021-03-25 11:52:54,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:54,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 11:52:54,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:54,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:54,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:54,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:54,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:54,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:54,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:54,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:54,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:54,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:54,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 11:52:54,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 11:52:54,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 11:52:54,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 11:52:54,336 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-03-25 11:52:54,336 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:54,337 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:54,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 11:52:54,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 11:52:54,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-25 11:52:54,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 11:52:54,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-25 11:52:54,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 11:52:54,375 INFO L142 QuantifierPusher]: treesize reduction 4, result has 95.0 percent of original size [2021-03-25 11:52:54,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,377 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 1] term [2021-03-25 11:52:54,377 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:54,377 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,378 INFO L147 QuantifierPusher]: treesize reduction 42, result has 60.0 percent of original size 63 [2021-03-25 11:52:54,378 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:54,379 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,380 INFO L142 QuantifierPusher]: treesize reduction 105, result has 53.5 percent of original size [2021-03-25 11:52:54,380 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:54,381 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,382 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:54,382 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:54,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 11:52:54,384 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:54,384 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:54,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-25 11:52:54,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-25 11:52:54,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-25 11:52:54,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 11:52:54,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 11:52:54,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 11:52:54,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 11:52:54,448 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.6 percent of original size [2021-03-25 11:52:54,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,449 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:54,449 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,451 INFO L147 QuantifierPusher]: treesize reduction 2, result has 96.8 percent of original size 60 [2021-03-25 11:52:54,451 INFO L147 QuantifierPusher]: treesize reduction 2, result has 96.8 percent of original size 60 [2021-03-25 11:52:54,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,452 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.5 percent of original size [2021-03-25 11:52:54,452 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:54,453 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,454 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:54,455 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,456 INFO L142 QuantifierPusher]: treesize reduction 26, result has 57.4 percent of original size [2021-03-25 11:52:54,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:54,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,466 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.2 percent of original size [2021-03-25 11:52:54,467 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:54,470 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,471 INFO L142 QuantifierPusher]: treesize reduction 60, result has 49.6 percent of original size [2021-03-25 11:52:54,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 11:52:54,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 11:52:54,472 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:54,473 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 11:52:54,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-25 11:52:54,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-25 11:52:54,476 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:54,476 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,477 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:54,477 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 11:52:54,480 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:54,480 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 11:52:54,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-25 11:52:54,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 11:52:54,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 11:52:54,519 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-03-25 11:52:54,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 11:52:54,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 11:52:54,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 11:52:54,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,523 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:54,523 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:54,524 INFO L142 QuantifierPusher]: treesize reduction 19, result has 36.7 percent of original size [2021-03-25 11:52:54,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:54,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:54,528 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:54,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:54,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 11:52:54,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181783932] [2021-03-25 11:52:54,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 11:52:54,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:54,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 11:52:54,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-03-25 11:52:54,530 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2021-03-25 11:52:54,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 425 transitions, 8138 flow. Second operand has 13 states, 13 states have (on average 11.153846153846153) internal successors, (145), 13 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 11:52:54,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:54,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2021-03-25 11:52:54,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:54,900 INFO L129 PetriNetUnfolder]: 296/902 cut-off events. [2021-03-25 11:52:54,900 INFO L130 PetriNetUnfolder]: For 24454/24457 co-relation queries the response was YES. [2021-03-25 11:52:54,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8565 conditions, 902 events. 296/902 cut-off events. For 24454/24457 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7149 event pairs, 7 based on Foata normal form. 9/911 useless extension candidates. Maximal degree in co-relation 8434. Up to 615 conditions per place. [2021-03-25 11:52:54,908 INFO L132 encePairwiseOnDemand]: 29/40 looper letters, 376 selfloop transitions, 92 changer transitions 19/491 dead transitions. [2021-03-25 11:52:54,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 491 transitions, 10543 flow [2021-03-25 11:52:54,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 11:52:54,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 11:52:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 201 transitions. [2021-03-25 11:52:54,909 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.335 [2021-03-25 11:52:54,909 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 201 transitions. [2021-03-25 11:52:54,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 201 transitions. [2021-03-25 11:52:54,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:54,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 201 transitions. [2021-03-25 11:52:54,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 13.4) internal successors, (201), 15 states have internal predecessors, (201), 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) [2021-03-25 11:52:54,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 40.0) internal successors, (640), 16 states have internal predecessors, (640), 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) [2021-03-25 11:52:54,911 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 40.0) internal successors, (640), 16 states have internal predecessors, (640), 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) [2021-03-25 11:52:54,911 INFO L185 Difference]: Start difference. First operand has 178 places, 425 transitions, 8138 flow. Second operand 15 states and 201 transitions. [2021-03-25 11:52:54,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 491 transitions, 10543 flow [2021-03-25 11:52:55,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 491 transitions, 9279 flow, removed 513 selfloop flow, removed 12 redundant places. [2021-03-25 11:52:55,021 INFO L241 Difference]: Finished difference. Result has 187 places, 454 transitions, 7929 flow [2021-03-25 11:52:55,022 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=7041, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7929, PETRI_PLACES=187, PETRI_TRANSITIONS=454} [2021-03-25 11:52:55,022 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 172 predicate places. [2021-03-25 11:52:55,022 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:55,022 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 187 places, 454 transitions, 7929 flow [2021-03-25 11:52:55,022 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 187 places, 454 transitions, 7929 flow [2021-03-25 11:52:55,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 186 places, 454 transitions, 7929 flow [2021-03-25 11:52:55,117 INFO L129 PetriNetUnfolder]: 292/892 cut-off events. [2021-03-25 11:52:55,117 INFO L130 PetriNetUnfolder]: For 22300/22338 co-relation queries the response was YES. [2021-03-25 11:52:55,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7200 conditions, 892 events. 292/892 cut-off events. For 22300/22338 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7111 event pairs, 5 based on Foata normal form. 0/892 useless extension candidates. Maximal degree in co-relation 6899. Up to 209 conditions per place. [2021-03-25 11:52:55,126 INFO L142 LiptonReduction]: Number of co-enabled transitions 302 [2021-03-25 11:52:55,297 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 11:52:55,297 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 11:52:55,297 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 275 [2021-03-25 11:52:55,297 INFO L480 AbstractCegarLoop]: Abstraction has has 186 places, 454 transitions, 7955 flow [2021-03-25 11:52:55,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.153846153846153) internal successors, (145), 13 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 11:52:55,297 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:55,297 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:55,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:55,512 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:55,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:55,513 INFO L82 PathProgramCache]: Analyzing trace with hash -2146612133, now seen corresponding path program 3 times [2021-03-25 11:52:55,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:55,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854759975] [2021-03-25 11:52:55,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:55,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 11:52:55,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:55,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 11:52:55,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 11:52:55,565 INFO L142 QuantifierPusher]: treesize reduction 25, result has 52.8 percent of original size [2021-03-25 11:52:55,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 11:52:55,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:55,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,594 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:55,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854759975] [2021-03-25 11:52:55,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116950236] [2021-03-25 11:52:55,594 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 [2021-03-25 11:52:55,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-25 11:52:55,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 11:52:55,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-25 11:52:55,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:55,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:55,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:55,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:55,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:55,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:55,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:55,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:55,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:55,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:55,626 INFO L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-03-25 11:52:55,627 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-03-25 11:52:55,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:55,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 11:52:55,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:55,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:55,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:55,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:55,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:55,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:55,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 11:52:55,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 11:52:55,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 11:52:55,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 11:52:55,643 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-03-25 11:52:55,643 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:55,644 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 11:52:55,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 11:52:55,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 11:52:55,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:55,684 INFO L147 QuantifierPusher]: treesize reduction 6, result has 88.9 percent of original size 48 [2021-03-25 11:52:55,684 INFO L142 QuantifierPusher]: treesize reduction 6, result has 89.1 percent of original size [2021-03-25 11:52:55,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:55,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 11:52:55,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 11:52:55,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 11:52:55,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 11:52:55,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 11:52:55,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 11:52:55,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 11:52:55,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-25 11:52:55,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 11:52:55,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-25 11:52:55,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 11:52:55,715 INFO L142 QuantifierPusher]: treesize reduction 4, result has 95.0 percent of original size [2021-03-25 11:52:55,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,716 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 1] term [2021-03-25 11:52:55,716 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:55,717 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,717 INFO L147 QuantifierPusher]: treesize reduction 36, result has 63.6 percent of original size 63 [2021-03-25 11:52:55,718 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:55,718 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,719 INFO L142 QuantifierPusher]: treesize reduction 108, result has 49.5 percent of original size [2021-03-25 11:52:55,720 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:55,720 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 11:52:55,722 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:55,723 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 11:52:55,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 11:52:55,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-25 11:52:55,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-25 11:52:55,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 11:52:55,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 11:52:55,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 11:52:55,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 11:52:55,798 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.4 percent of original size [2021-03-25 11:52:55,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,799 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:55,799 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,800 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.0 percent of original size [2021-03-25 11:52:55,801 INFO L147 QuantifierPusher]: treesize reduction 2, result has 95.2 percent of original size 40 [2021-03-25 11:52:55,801 INFO L147 QuantifierPusher]: treesize reduction 2, result has 95.2 percent of original size 40 [2021-03-25 11:52:55,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,802 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.7 percent of original size [2021-03-25 11:52:55,802 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:55,803 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,803 INFO L142 QuantifierPusher]: treesize reduction 44, result has 55.6 percent of original size [2021-03-25 11:52:55,804 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 11:52:55,804 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:55,804 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 11:52:55,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 11:52:55,806 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:55,807 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,807 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:55,808 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:55,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 11:52:55,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 11:52:55,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 11:52:55,853 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.4 percent of original size [2021-03-25 11:52:55,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 11:52:55,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 11:52:55,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 11:52:55,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,856 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:55,856 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:55,857 INFO L142 QuantifierPusher]: treesize reduction 17, result has 39.3 percent of original size [2021-03-25 11:52:55,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:55,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:55,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:55,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 11:52:55,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469610266] [2021-03-25 11:52:55,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-25 11:52:55,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:55,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-25 11:52:55,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-03-25 11:52:55,862 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2021-03-25 11:52:55,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 454 transitions, 7955 flow. Second operand has 15 states, 15 states have (on average 11.133333333333333) internal successors, (167), 15 states have internal predecessors, (167), 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) [2021-03-25 11:52:55,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:55,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2021-03-25 11:52:55,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:56,729 INFO L129 PetriNetUnfolder]: 391/1187 cut-off events. [2021-03-25 11:52:56,729 INFO L130 PetriNetUnfolder]: For 43751/43753 co-relation queries the response was YES. [2021-03-25 11:52:56,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11157 conditions, 1187 events. 391/1187 cut-off events. For 43751/43753 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 9859 event pairs, 5 based on Foata normal form. 55/1242 useless extension candidates. Maximal degree in co-relation 10766. Up to 643 conditions per place. [2021-03-25 11:52:56,742 INFO L132 encePairwiseOnDemand]: 29/43 looper letters, 380 selfloop transitions, 251 changer transitions 34/669 dead transitions. [2021-03-25 11:52:56,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 669 transitions, 13797 flow [2021-03-25 11:52:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-25 11:52:56,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-25 11:52:56,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 276 transitions. [2021-03-25 11:52:56,744 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3209302325581395 [2021-03-25 11:52:56,744 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 276 transitions. [2021-03-25 11:52:56,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 276 transitions. [2021-03-25 11:52:56,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:56,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 276 transitions. [2021-03-25 11:52:56,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 13.8) internal successors, (276), 20 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) [2021-03-25 11:52:56,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 43.0) internal successors, (903), 21 states have internal predecessors, (903), 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) [2021-03-25 11:52:56,748 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 43.0) internal successors, (903), 21 states have internal predecessors, (903), 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) [2021-03-25 11:52:56,748 INFO L185 Difference]: Start difference. First operand has 186 places, 454 transitions, 7955 flow. Second operand 20 states and 276 transitions. [2021-03-25 11:52:56,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 669 transitions, 13797 flow [2021-03-25 11:52:56,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 669 transitions, 13590 flow, removed 97 selfloop flow, removed 4 redundant places. [2021-03-25 11:52:56,950 INFO L241 Difference]: Finished difference. Result has 212 places, 606 transitions, 12065 flow [2021-03-25 11:52:56,950 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=7657, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=12065, PETRI_PLACES=212, PETRI_TRANSITIONS=606} [2021-03-25 11:52:56,950 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 197 predicate places. [2021-03-25 11:52:56,950 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:56,950 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 606 transitions, 12065 flow [2021-03-25 11:52:56,951 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 606 transitions, 12065 flow [2021-03-25 11:52:56,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 211 places, 606 transitions, 12065 flow [2021-03-25 11:52:57,110 INFO L129 PetriNetUnfolder]: 382/1167 cut-off events. [2021-03-25 11:52:57,110 INFO L130 PetriNetUnfolder]: For 38730/38736 co-relation queries the response was YES. [2021-03-25 11:52:57,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10807 conditions, 1167 events. 382/1167 cut-off events. For 38730/38736 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 9842 event pairs, 5 based on Foata normal form. 0/1167 useless extension candidates. Maximal degree in co-relation 10406. Up to 301 conditions per place. [2021-03-25 11:52:57,124 INFO L142 LiptonReduction]: Number of co-enabled transitions 410 [2021-03-25 11:52:57,291 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:57,292 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 11:52:57,292 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 342 [2021-03-25 11:52:57,292 INFO L480 AbstractCegarLoop]: Abstraction has has 210 places, 605 transitions, 12047 flow [2021-03-25 11:52:57,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.133333333333333) internal successors, (167), 15 states have internal predecessors, (167), 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) [2021-03-25 11:52:57,292 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:57,292 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:57,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:57,507 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:57,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:57,508 INFO L82 PathProgramCache]: Analyzing trace with hash 486821530, now seen corresponding path program 1 times [2021-03-25 11:52:57,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:57,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159613457] [2021-03-25 11:52:57,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:57,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:57,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:57,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:57,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:57,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:52:57,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:57,533 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:57,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159613457] [2021-03-25 11:52:57,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115662766] [2021-03-25 11:52:57,533 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 [2021-03-25 11:52:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:57,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 18 conjunts are in the unsatisfiable core [2021-03-25 11:52:57,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:57,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:57,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:57,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:57,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:57,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:57,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:57,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:57,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:57,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:52:57,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:57,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 11:52:57,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:52:57,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:57,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 11:52:57,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:57,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:57,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:57,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:57,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:57,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:57,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-25 11:52:57,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 11:52:57,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-25 11:52:57,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 11:52:57,619 INFO L142 QuantifierPusher]: treesize reduction 200, result has 31.7 percent of original size [2021-03-25 11:52:57,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,620 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 2, 1] term [2021-03-25 11:52:57,620 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:57,621 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,622 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 2, 2, 2, 1] term [2021-03-25 11:52:57,622 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 11:52:57,623 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,624 INFO L147 QuantifierPusher]: treesize reduction 124, result has 34.4 percent of original size 65 [2021-03-25 11:52:57,625 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 11:52:57,625 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,626 INFO L142 QuantifierPusher]: treesize reduction 124, result has 38.3 percent of original size [2021-03-25 11:52:57,627 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:57,627 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:57,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 11:52:57,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 11:52:57,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 11:52:57,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:57,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 11:52:57,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:57,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 11:52:57,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:57,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:57,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:57,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:57,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:57,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 11:52:57,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 11:52:57,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 11:52:57,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 11:52:57,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 11:52:57,713 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.6 percent of original size [2021-03-25 11:52:57,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,715 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:57,715 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,716 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:57,717 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 11:52:57,718 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:57,719 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 11:52:57,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 11:52:57,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 11:52:57,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,722 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:57,722 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,723 INFO L142 QuantifierPusher]: treesize reduction 74, result has 50.3 percent of original size [2021-03-25 11:52:57,724 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 11:52:57,724 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:57,724 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,725 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:57,725 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,728 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.8 percent of original size 37 [2021-03-25 11:52:57,728 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.4 percent of original size 75 [2021-03-25 11:52:57,729 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.4 percent of original size 75 [2021-03-25 11:52:57,729 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:57,729 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,730 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.2 percent of original size [2021-03-25 11:52:57,730 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:57,730 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 11:52:57,735 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:57,735 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 11:52:57,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 11:52:57,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-25 11:52:57,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-25 11:52:57,768 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-03-25 11:52:57,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 11:52:57,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 11:52:57,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 11:52:57,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,771 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:57,772 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:57,772 INFO L142 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size [2021-03-25 11:52:57,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:57,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:57,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:57,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:57,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:57,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:57,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:57,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:57,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:57,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:57,775 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:57,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:57,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 11:52:57,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731028347] [2021-03-25 11:52:57,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 11:52:57,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:57,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 11:52:57,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-03-25 11:52:57,776 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2021-03-25 11:52:57,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 605 transitions, 12047 flow. Second operand has 12 states, 12 states have (on average 11.25) internal successors, (135), 12 states have internal predecessors, (135), 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) [2021-03-25 11:52:57,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:57,776 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2021-03-25 11:52:57,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:58,336 INFO L129 PetriNetUnfolder]: 418/1270 cut-off events. [2021-03-25 11:52:58,336 INFO L130 PetriNetUnfolder]: For 46338/46375 co-relation queries the response was YES. [2021-03-25 11:52:58,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12898 conditions, 1270 events. 418/1270 cut-off events. For 46338/46375 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 10852 event pairs, 8 based on Foata normal form. 17/1287 useless extension candidates. Maximal degree in co-relation 12419. Up to 644 conditions per place. [2021-03-25 11:52:58,350 INFO L132 encePairwiseOnDemand]: 33/45 looper letters, 400 selfloop transitions, 283 changer transitions 6/693 dead transitions. [2021-03-25 11:52:58,350 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 693 transitions, 15366 flow [2021-03-25 11:52:58,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 11:52:58,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 11:52:58,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 197 transitions. [2021-03-25 11:52:58,351 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3126984126984127 [2021-03-25 11:52:58,351 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 197 transitions. [2021-03-25 11:52:58,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 197 transitions. [2021-03-25 11:52:58,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:58,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 197 transitions. [2021-03-25 11:52:58,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 14.071428571428571) internal successors, (197), 14 states have internal predecessors, (197), 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) [2021-03-25 11:52:58,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 45.0) internal successors, (675), 15 states have internal predecessors, (675), 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) [2021-03-25 11:52:58,352 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 45.0) internal successors, (675), 15 states have internal predecessors, (675), 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) [2021-03-25 11:52:58,352 INFO L185 Difference]: Start difference. First operand has 210 places, 605 transitions, 12047 flow. Second operand 14 states and 197 transitions. [2021-03-25 11:52:58,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 693 transitions, 15366 flow [2021-03-25 11:52:58,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 693 transitions, 14225 flow, removed 534 selfloop flow, removed 5 redundant places. [2021-03-25 11:52:58,601 INFO L241 Difference]: Finished difference. Result has 224 places, 657 transitions, 13120 flow [2021-03-25 11:52:58,602 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=10912, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13120, PETRI_PLACES=224, PETRI_TRANSITIONS=657} [2021-03-25 11:52:58,602 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 209 predicate places. [2021-03-25 11:52:58,602 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:52:58,602 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 657 transitions, 13120 flow [2021-03-25 11:52:58,602 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 657 transitions, 13120 flow [2021-03-25 11:52:58,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 224 places, 657 transitions, 13120 flow [2021-03-25 11:52:58,803 INFO L129 PetriNetUnfolder]: 417/1276 cut-off events. [2021-03-25 11:52:58,803 INFO L130 PetriNetUnfolder]: For 40297/40372 co-relation queries the response was YES. [2021-03-25 11:52:58,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11777 conditions, 1276 events. 417/1276 cut-off events. For 40297/40372 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 11044 event pairs, 6 based on Foata normal form. 0/1276 useless extension candidates. Maximal degree in co-relation 11490. Up to 322 conditions per place. [2021-03-25 11:52:58,817 INFO L142 LiptonReduction]: Number of co-enabled transitions 452 [2021-03-25 11:52:58,960 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:52:58,960 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 11:52:58,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 358 [2021-03-25 11:52:58,960 INFO L480 AbstractCegarLoop]: Abstraction has has 224 places, 657 transitions, 13141 flow [2021-03-25 11:52:58,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 12 states have internal predecessors, (135), 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) [2021-03-25 11:52:58,961 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:52:58,961 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:52:59,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:52:59,175 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:52:59,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:52:59,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1320189702, now seen corresponding path program 2 times [2021-03-25 11:52:59,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:52:59,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737772110] [2021-03-25 11:52:59,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:52:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:52:59,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:59,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:59,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 11:52:59,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:59,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:52:59,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:59,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737772110] [2021-03-25 11:52:59,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128614517] [2021-03-25 11:52:59,207 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 [2021-03-25 11:52:59,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 11:52:59,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 11:52:59,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-25 11:52:59,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:52:59,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:59,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:59,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 11:52:59,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:59,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-25 11:52:59,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-03-25 11:52:59,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-25 11:52:59,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-03-25 11:52:59,251 INFO L142 QuantifierPusher]: treesize reduction 256, result has 25.6 percent of original size [2021-03-25 11:52:59,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,252 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:59,253 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,253 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:59,254 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:59,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 11:52:59,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 11:52:59,256 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:59,256 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,257 INFO L142 QuantifierPusher]: treesize reduction 24, result has 76.2 percent of original size [2021-03-25 11:52:59,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,257 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:59,258 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:59,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:59,259 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:59,260 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,260 INFO L142 QuantifierPusher]: treesize reduction 24, result has 48.9 percent of original size [2021-03-25 11:52:59,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:59,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,261 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:59,262 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,263 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 11:52:59,263 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-03-25 11:52:59,264 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:52:59,264 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,264 INFO L142 QuantifierPusher]: treesize reduction 24, result has 45.5 percent of original size [2021-03-25 11:52:59,265 INFO L147 QuantifierPusher]: treesize reduction 8, result has 27.3 percent of original size 3 [2021-03-25 11:52:59,265 INFO L147 QuantifierPusher]: treesize reduction 15, result has 16.7 percent of original size 3 [2021-03-25 11:52:59,266 INFO L147 QuantifierPusher]: treesize reduction 15, result has 40.0 percent of original size 10 [2021-03-25 11:52:59,266 INFO L142 QuantifierPusher]: treesize reduction 15, result has 40.0 percent of original size [2021-03-25 11:52:59,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 11:52:59,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:59,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 11:52:59,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:59,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 11:52:59,277 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-03-25 11:52:59,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,278 INFO L147 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size 5 [2021-03-25 11:52:59,278 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:52:59,279 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 11:52:59,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 11:52:59,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 11:52:59,297 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.7 percent of original size [2021-03-25 11:52:59,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 11:52:59,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 11:52:59,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 11:52:59,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:59,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:59,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:59,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:59,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:52:59,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:52:59,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:52:59,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 11:52:59,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:52:59,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:52:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 11:52:59,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 11:52:59,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2021-03-25 11:52:59,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374202213] [2021-03-25 11:52:59,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 11:52:59,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 11:52:59,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 11:52:59,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-25 11:52:59,314 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 46 [2021-03-25 11:52:59,314 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 657 transitions, 13141 flow. Second operand has 11 states, 11 states have (on average 14.181818181818182) internal successors, (156), 11 states have internal predecessors, (156), 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) [2021-03-25 11:52:59,314 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 11:52:59,314 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 46 [2021-03-25 11:52:59,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 11:52:59,924 INFO L129 PetriNetUnfolder]: 423/1278 cut-off events. [2021-03-25 11:52:59,924 INFO L130 PetriNetUnfolder]: For 40977/41129 co-relation queries the response was YES. [2021-03-25 11:52:59,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12882 conditions, 1278 events. 423/1278 cut-off events. For 40977/41129 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 10871 event pairs, 0 based on Foata normal form. 17/1295 useless extension candidates. Maximal degree in co-relation 12577. Up to 331 conditions per place. [2021-03-25 11:52:59,950 INFO L132 encePairwiseOnDemand]: 33/46 looper letters, 340 selfloop transitions, 353 changer transitions 22/720 dead transitions. [2021-03-25 11:52:59,951 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 720 transitions, 16370 flow [2021-03-25 11:52:59,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-25 11:52:59,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-25 11:52:59,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 332 transitions. [2021-03-25 11:52:59,952 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34368530020703936 [2021-03-25 11:52:59,952 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 332 transitions. [2021-03-25 11:52:59,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 332 transitions. [2021-03-25 11:52:59,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 11:52:59,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 332 transitions. [2021-03-25 11:52:59,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 15.80952380952381) internal successors, (332), 21 states have internal predecessors, (332), 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) [2021-03-25 11:52:59,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 46.0) internal successors, (1012), 22 states have internal predecessors, (1012), 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) [2021-03-25 11:52:59,954 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 46.0) internal successors, (1012), 22 states have internal predecessors, (1012), 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) [2021-03-25 11:52:59,954 INFO L185 Difference]: Start difference. First operand has 224 places, 657 transitions, 13141 flow. Second operand 21 states and 332 transitions. [2021-03-25 11:52:59,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 720 transitions, 16370 flow [2021-03-25 11:53:00,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 720 transitions, 16101 flow, removed 117 selfloop flow, removed 7 redundant places. [2021-03-25 11:53:00,212 INFO L241 Difference]: Finished difference. Result has 242 places, 683 transitions, 14679 flow [2021-03-25 11:53:00,213 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=12884, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=327, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=14679, PETRI_PLACES=242, PETRI_TRANSITIONS=683} [2021-03-25 11:53:00,213 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 227 predicate places. [2021-03-25 11:53:00,213 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 11:53:00,213 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 683 transitions, 14679 flow [2021-03-25 11:53:00,213 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 683 transitions, 14679 flow [2021-03-25 11:53:00,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 683 transitions, 14679 flow [2021-03-25 11:53:00,395 INFO L129 PetriNetUnfolder]: 421/1268 cut-off events. [2021-03-25 11:53:00,395 INFO L130 PetriNetUnfolder]: For 42638/42639 co-relation queries the response was YES. [2021-03-25 11:53:00,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12486 conditions, 1268 events. 421/1268 cut-off events. For 42638/42639 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 10892 event pairs, 5 based on Foata normal form. 1/1269 useless extension candidates. Maximal degree in co-relation 12185. Up to 330 conditions per place. [2021-03-25 11:53:00,410 INFO L142 LiptonReduction]: Number of co-enabled transitions 466 [2021-03-25 11:53:00,459 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 11:53:00,459 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 11:53:00,460 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 247 [2021-03-25 11:53:00,460 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 683 transitions, 14679 flow [2021-03-25 11:53:00,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 14.181818181818182) internal successors, (156), 11 states have internal predecessors, (156), 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) [2021-03-25 11:53:00,460 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 11:53:00,460 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 11:53:00,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 11:53:00,675 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 11:53:00,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 11:53:00,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1190821067, now seen corresponding path program 1 times [2021-03-25 11:53:00,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 11:53:00,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023931751] [2021-03-25 11:53:00,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 11:53:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:53:00,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 11:53:00,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:53:00,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:53:00,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:53:00,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 11:53:00,713 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-25 11:53:00,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023931751] [2021-03-25 11:53:00,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330606865] [2021-03-25 11:53:00,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-25 11:53:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 11:53:00,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 11:53:00,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 11:53:00,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:53:00,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:53:00,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:53:00,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:53:00,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:53:00,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:53:00,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:53:00,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 11:53:00,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:53:00,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:53:00,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 11:53:00,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 11:53:00,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:53:00,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:53:00,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:53:00,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:53:00,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:53:00,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 11:53:00,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-25 11:53:00,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-25 11:53:00,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-25 11:53:00,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-25 11:53:00,746 INFO L142 QuantifierPusher]: treesize reduction 67, result has 47.2 percent of original size [2021-03-25 11:53:00,747 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:53:00,747 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,749 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 11:53:00,749 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,750 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 11:53:00,750 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,752 INFO L147 QuantifierPusher]: treesize reduction -10, result has 115.2 percent of original size 76 [2021-03-25 11:53:00,752 INFO L147 QuantifierPusher]: treesize reduction -11, result has 114.1 percent of original size 89 [2021-03-25 11:53:00,753 INFO L147 QuantifierPusher]: treesize reduction -11, result has 114.1 percent of original size 89 [2021-03-25 11:53:00,753 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 11:53:00,753 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,754 INFO L142 QuantifierPusher]: treesize reduction -11, result has 112.2 percent of original size [2021-03-25 11:53:00,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:00,771 INFO L147 QuantifierPusher]: treesize reduction -10, result has 103.6 percent of original size 285 [2021-03-25 11:53:00,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,772 INFO L142 QuantifierPusher]: treesize reduction -2, result has 101.4 percent of original size [2021-03-25 11:53:00,775 INFO L147 QuantifierPusher]: treesize reduction 301, result has 45.2 percent of original size 248 [2021-03-25 11:53:00,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,776 INFO L142 QuantifierPusher]: treesize reduction 121, result has 59.3 percent of original size [2021-03-25 11:53:00,780 INFO L147 QuantifierPusher]: treesize reduction -29, result has 102.8 percent of original size 1052 [2021-03-25 11:53:00,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:00,783 INFO L142 QuantifierPusher]: treesize reduction 71, result has 91.4 percent of original size [2021-03-25 11:53:00,894 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 11:53:01,941 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-03-25 11:53:02,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:02,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 11:53:02,960 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 1421 DAG size of output: 1408 [2021-03-25 11:53:02,984 INFO L147 QuantifierPusher]: treesize reduction -2167, result has 107.8 percent of original size 30073 [2021-03-25 11:53:03,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:03,045 INFO L142 QuantifierPusher]: treesize reduction -98, result has 104.6 percent of original size [2021-03-25 11:53:07,811 WARN L205 SmtUtils]: Spent 4.69 s on a formula simplification. DAG size of input: 4887 DAG size of output: 4770 [2021-03-25 11:53:07,874 INFO L147 QuantifierPusher]: treesize reduction -729, result has 100.6 percent of original size 122623 [2021-03-25 11:53:07,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:08,038 INFO L142 QuantifierPusher]: treesize reduction 1170, result has 83.9 percent of original size [2021-03-25 11:53:57,682 WARN L205 SmtUtils]: Spent 49.47 s on a formula simplification. DAG size of input: 14835 DAG size of output: 10845 [2021-03-25 11:53:57,855 INFO L147 QuantifierPusher]: treesize reduction 131633, result has 72.6 percent of original size 348780 [2021-03-25 11:53:58,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:53:58,278 INFO L142 QuantifierPusher]: treesize reduction 3742, result has 77.0 percent of original size [2021-03-25 11:57:52,406 WARN L205 SmtUtils]: Spent 3.89 m on a formula simplification. DAG size of input: 30085 DAG size of output: 22823 [2021-03-25 11:57:52,809 INFO L147 QuantifierPusher]: treesize reduction 269656, result has 74.9 percent of original size 805724 [2021-03-25 11:57:53,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 11:57:53,898 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 2552 DAG size of output: 2032 [2021-03-25 11:57:53,915 INFO L142 QuantifierPusher]: treesize reduction 5834, result has 81.3 percent of original size Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown