/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 19:46:01,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 19:46:01,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 19:46:01,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 19:46:01,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 19:46:01,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 19:46:01,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 19:46:01,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 19:46:01,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 19:46:01,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 19:46:01,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 19:46:01,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 19:46:01,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 19:46:01,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 19:46:01,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 19:46:01,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 19:46:01,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 19:46:01,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 19:46:01,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 19:46:01,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 19:46:01,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 19:46:01,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 19:46:01,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 19:46:01,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 19:46:01,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 19:46:02,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 19:46:02,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 19:46:02,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 19:46:02,012 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-03-25 19:46:02,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 19:46:02,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 19:46:02,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 19:46:02,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 19:46:02,051 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 19:46:02,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 19:46:02,051 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 19:46:02,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 19:46:02,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 19:46:02,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 19:46:02,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 19:46:02,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 19:46:02,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 19:46:02,053 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 19:46:02,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 19:46:02,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 19:46:02,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 19:46:02,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 19:46:02,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 19:46:02,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 19:46:02,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 19:46:02,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 19:46:02,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 19:46:02,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 19:46:02,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 19:46:02,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 19:46:02,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 19:46:02,055 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 19:46:02,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 19:46:02,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 19:46:02,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 19:46:02,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 19:46:02,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 19:46:02,401 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 19:46:02,402 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 19:46:02,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-3.wvr.bpl [2021-03-25 19:46:02,403 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-3.wvr.bpl' [2021-03-25 19:46:02,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 19:46:02,720 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 19:46:02,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 19:46:02,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 19:46:02,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 19:46:02,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:46:02" (1/1) ... [2021-03-25 19:46:02,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:46:02" (1/1) ... [2021-03-25 19:46:02,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 19:46:02,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 19:46:02,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 19:46:02,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 19:46:02,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:46:02" (1/1) ... [2021-03-25 19:46:02,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:46:02" (1/1) ... [2021-03-25 19:46:02,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:46:02" (1/1) ... [2021-03-25 19:46:02,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:46:02" (1/1) ... [2021-03-25 19:46:02,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:46:02" (1/1) ... [2021-03-25 19:46:02,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:46:02" (1/1) ... [2021-03-25 19:46:02,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:46:02" (1/1) ... [2021-03-25 19:46:02,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 19:46:02,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 19:46:02,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 19:46:02,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 19:46:02,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:46:02" (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 19:46:02,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-25 19:46:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-25 19:46:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-25 19:46:02,836 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-25 19:46:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-25 19:46:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-25 19:46:02,836 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 19:46:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 19:46:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 19:46:02,836 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-25 19:46:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-25 19:46:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-25 19:46:02,837 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 19:46:03,019 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 19:46:03,019 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 19:46:03,020 INFO L202 PluginConnector]: Adding new model ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:46:03 BoogieIcfgContainer [2021-03-25 19:46:03,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 19:46:03,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 19:46:03,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 19:46:03,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 19:46:03,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:46:02" (1/2) ... [2021-03-25 19:46:03,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4465740f and model type ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 07:46:03, skipping insertion in model container [2021-03-25 19:46:03,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:46:03" (2/2) ... [2021-03-25 19:46:03,026 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-3.wvr.bpl [2021-03-25 19:46:03,030 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 19:46:03,033 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 19:46:03,033 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 19:46:03,078 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-25 19:46:03,092 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 19:46:03,108 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 19:46:03,108 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 19:46:03,108 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 19:46:03,108 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 19:46:03,109 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 19:46:03,109 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 19:46:03,109 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 19:46:03,109 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 19:46:03,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 30 transitions, 84 flow [2021-03-25 19:46:03,138 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-03-25 19:46:03,138 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 19:46:03,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 27 events. 0/27 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 19:46:03,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 30 transitions, 84 flow [2021-03-25 19:46:03,143 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 25 transitions, 68 flow [2021-03-25 19:46:03,144 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:03,155 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 25 transitions, 68 flow [2021-03-25 19:46:03,157 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 25 transitions, 68 flow [2021-03-25 19:46:03,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 68 flow [2021-03-25 19:46:03,171 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-25 19:46:03,171 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 19:46:03,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 0/25 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 19:46:03,174 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-25 19:46:03,782 INFO L154 LiptonReduction]: Checked pairs total: 375 [2021-03-25 19:46:03,783 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-25 19:46:03,786 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 642 [2021-03-25 19:46:03,810 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-25 19:46:03,810 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 19:46:03,811 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:03,811 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:03,811 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:03,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:03,822 INFO L82 PathProgramCache]: Analyzing trace with hash 576604323, now seen corresponding path program 1 times [2021-03-25 19:46:03,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:03,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568278577] [2021-03-25 19:46:03,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:03,961 INFO L142 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-03-25 19:46:03,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 19:46:03,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:03,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:03,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:03,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:03,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:03,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 19:46:03,990 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 19:46:03,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568278577] [2021-03-25 19:46:03,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:03,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 19:46:03,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50022177] [2021-03-25 19:46:03,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 19:46:03,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:04,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 19:46:04,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 19:46:04,011 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 39 [2021-03-25 19:46:04,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 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 19:46:04,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:04,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 39 [2021-03-25 19:46:04,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:04,063 INFO L129 PetriNetUnfolder]: 43/113 cut-off events. [2021-03-25 19:46:04,063 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-03-25 19:46:04,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 113 events. 43/113 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 457 event pairs, 12 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 206. Up to 54 conditions per place. [2021-03-25 19:46:04,067 INFO L132 encePairwiseOnDemand]: 30/39 looper letters, 13 selfloop transitions, 7 changer transitions 1/28 dead transitions. [2021-03-25 19:46:04,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 28 transitions, 116 flow [2021-03-25 19:46:04,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 19:46:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 19:46:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2021-03-25 19:46:04,076 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.676923076923077 [2021-03-25 19:46:04,077 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 132 transitions. [2021-03-25 19:46:04,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 132 transitions. [2021-03-25 19:46:04,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:04,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 132 transitions. [2021-03-25 19:46:04,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:04,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 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 19:46:04,085 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 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 19:46:04,087 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 5 states and 132 transitions. [2021-03-25 19:46:04,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 28 transitions, 116 flow [2021-03-25 19:46:04,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 28 transitions, 104 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-25 19:46:04,092 INFO L241 Difference]: Finished difference. Result has 27 places, 21 transitions, 87 flow [2021-03-25 19:46:04,093 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=87, PETRI_PLACES=27, PETRI_TRANSITIONS=21} [2021-03-25 19:46:04,094 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 1 predicate places. [2021-03-25 19:46:04,094 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:04,094 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 21 transitions, 87 flow [2021-03-25 19:46:04,095 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 21 transitions, 87 flow [2021-03-25 19:46:04,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 21 transitions, 87 flow [2021-03-25 19:46:04,110 INFO L129 PetriNetUnfolder]: 12/55 cut-off events. [2021-03-25 19:46:04,110 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 19:46:04,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 55 events. 12/55 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 161 event pairs, 5 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 95. Up to 24 conditions per place. [2021-03-25 19:46:04,111 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-25 19:46:04,205 INFO L154 LiptonReduction]: Checked pairs total: 8 [2021-03-25 19:46:04,206 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:46:04,206 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-03-25 19:46:04,208 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 21 transitions, 87 flow [2021-03-25 19:46:04,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 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 19:46:04,208 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:04,209 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:04,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 19:46:04,209 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:04,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:04,210 INFO L82 PathProgramCache]: Analyzing trace with hash 572180383, now seen corresponding path program 2 times [2021-03-25 19:46:04,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:04,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331081102] [2021-03-25 19:46:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:04,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:04,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:04,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:04,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:46:04,283 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 19:46:04,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331081102] [2021-03-25 19:46:04,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:04,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 19:46:04,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246381295] [2021-03-25 19:46:04,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 19:46:04,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:04,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 19:46:04,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 19:46:04,292 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 40 [2021-03-25 19:46:04,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 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 19:46:04,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:04,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 40 [2021-03-25 19:46:04,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:04,403 INFO L129 PetriNetUnfolder]: 49/119 cut-off events. [2021-03-25 19:46:04,406 INFO L130 PetriNetUnfolder]: For 74/80 co-relation queries the response was YES. [2021-03-25 19:46:04,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 119 events. 49/119 cut-off events. For 74/80 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 438 event pairs, 7 based on Foata normal form. 10/128 useless extension candidates. Maximal degree in co-relation 324. Up to 62 conditions per place. [2021-03-25 19:46:04,407 INFO L132 encePairwiseOnDemand]: 33/40 looper letters, 18 selfloop transitions, 11 changer transitions 0/36 dead transitions. [2021-03-25 19:46:04,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 208 flow [2021-03-25 19:46:04,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 19:46:04,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 19:46:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2021-03-25 19:46:04,411 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.64 [2021-03-25 19:46:04,411 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 128 transitions. [2021-03-25 19:46:04,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 128 transitions. [2021-03-25 19:46:04,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:04,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 128 transitions. [2021-03-25 19:46:04,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 25.6) internal successors, (128), 5 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 19:46:04,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:04,414 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:04,414 INFO L185 Difference]: Start difference. First operand has 27 places, 21 transitions, 87 flow. Second operand 5 states and 128 transitions. [2021-03-25 19:46:04,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 208 flow [2021-03-25 19:46:04,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 36 transitions, 188 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-25 19:46:04,416 INFO L241 Difference]: Finished difference. Result has 30 places, 28 transitions, 149 flow [2021-03-25 19:46:04,416 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=149, PETRI_PLACES=30, PETRI_TRANSITIONS=28} [2021-03-25 19:46:04,417 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2021-03-25 19:46:04,417 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:04,417 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 28 transitions, 149 flow [2021-03-25 19:46:04,417 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 28 transitions, 149 flow [2021-03-25 19:46:04,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions, 149 flow [2021-03-25 19:46:04,430 INFO L129 PetriNetUnfolder]: 17/63 cut-off events. [2021-03-25 19:46:04,430 INFO L130 PetriNetUnfolder]: For 43/58 co-relation queries the response was YES. [2021-03-25 19:46:04,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 63 events. 17/63 cut-off events. For 43/58 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 209 event pairs, 3 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 149. Up to 26 conditions per place. [2021-03-25 19:46:04,432 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-25 19:46:04,573 INFO L154 LiptonReduction]: Checked pairs total: 16 [2021-03-25 19:46:04,573 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 19:46:04,573 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 156 [2021-03-25 19:46:04,574 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 149 flow [2021-03-25 19:46:04,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 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 19:46:04,575 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:04,575 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:04,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 19:46:04,575 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:04,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:04,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1234370936, now seen corresponding path program 1 times [2021-03-25 19:46:04,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:04,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131520519] [2021-03-25 19:46:04,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:04,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:04,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:04,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:04,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:46:04,680 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 19:46:04,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131520519] [2021-03-25 19:46:04,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:04,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 19:46:04,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245740428] [2021-03-25 19:46:04,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 19:46:04,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:04,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 19:46:04,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 19:46:04,682 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2021-03-25 19:46:04,682 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 149 flow. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:04,682 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:04,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2021-03-25 19:46:04,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:04,760 INFO L129 PetriNetUnfolder]: 41/113 cut-off events. [2021-03-25 19:46:04,761 INFO L130 PetriNetUnfolder]: For 130/136 co-relation queries the response was YES. [2021-03-25 19:46:04,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 113 events. 41/113 cut-off events. For 130/136 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 414 event pairs, 15 based on Foata normal form. 15/127 useless extension candidates. Maximal degree in co-relation 347. Up to 56 conditions per place. [2021-03-25 19:46:04,762 INFO L132 encePairwiseOnDemand]: 33/42 looper letters, 15 selfloop transitions, 12 changer transitions 3/37 dead transitions. [2021-03-25 19:46:04,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 37 transitions, 253 flow [2021-03-25 19:46:04,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 19:46:04,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 19:46:04,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2021-03-25 19:46:04,767 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2021-03-25 19:46:04,767 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 129 transitions. [2021-03-25 19:46:04,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 129 transitions. [2021-03-25 19:46:04,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:04,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 129 transitions. [2021-03-25 19:46:04,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 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 19:46:04,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 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 19:46:04,773 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 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 19:46:04,773 INFO L185 Difference]: Start difference. First operand has 30 places, 28 transitions, 149 flow. Second operand 5 states and 129 transitions. [2021-03-25 19:46:04,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 37 transitions, 253 flow [2021-03-25 19:46:04,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 249 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 19:46:04,778 INFO L241 Difference]: Finished difference. Result has 35 places, 30 transitions, 197 flow [2021-03-25 19:46:04,779 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=197, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2021-03-25 19:46:04,779 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2021-03-25 19:46:04,779 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:04,780 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 30 transitions, 197 flow [2021-03-25 19:46:04,780 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 30 transitions, 197 flow [2021-03-25 19:46:04,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 197 flow [2021-03-25 19:46:04,787 INFO L129 PetriNetUnfolder]: 15/68 cut-off events. [2021-03-25 19:46:04,787 INFO L130 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2021-03-25 19:46:04,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 68 events. 15/68 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 257 event pairs, 3 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 172. Up to 24 conditions per place. [2021-03-25 19:46:04,789 INFO L142 LiptonReduction]: Number of co-enabled transitions 60 [2021-03-25 19:46:04,864 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-25 19:46:04,864 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:46:04,864 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 85 [2021-03-25 19:46:04,868 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 195 flow [2021-03-25 19:46:04,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:04,869 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:04,869 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:04,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 19:46:04,869 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:04,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:04,869 INFO L82 PathProgramCache]: Analyzing trace with hash 805034811, now seen corresponding path program 1 times [2021-03-25 19:46:04,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:04,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802910383] [2021-03-25 19:46:04,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:04,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:04,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:04,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:04,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:04,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:46:04,919 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 19:46:04,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802910383] [2021-03-25 19:46:04,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:04,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 19:46:04,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014042878] [2021-03-25 19:46:04,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 19:46:04,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:04,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 19:46:04,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 19:46:04,925 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2021-03-25 19:46:04,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 195 flow. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:04,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:04,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2021-03-25 19:46:04,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:04,983 INFO L129 PetriNetUnfolder]: 16/49 cut-off events. [2021-03-25 19:46:04,983 INFO L130 PetriNetUnfolder]: For 95/99 co-relation queries the response was YES. [2021-03-25 19:46:04,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 49 events. 16/49 cut-off events. For 95/99 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 109 event pairs, 3 based on Foata normal form. 8/57 useless extension candidates. Maximal degree in co-relation 184. Up to 32 conditions per place. [2021-03-25 19:46:04,985 INFO L132 encePairwiseOnDemand]: 35/43 looper letters, 11 selfloop transitions, 12 changer transitions 2/32 dead transitions. [2021-03-25 19:46:04,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 267 flow [2021-03-25 19:46:04,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 19:46:04,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 19:46:04,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 123 transitions. [2021-03-25 19:46:04,987 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5720930232558139 [2021-03-25 19:46:04,987 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 123 transitions. [2021-03-25 19:46:04,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 123 transitions. [2021-03-25 19:46:04,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:04,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 123 transitions. [2021-03-25 19:46:04,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.6) internal successors, (123), 5 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 19:46:04,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 0 states have call successors, (0), 0 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 19:46:04,989 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 0 states have call successors, (0), 0 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 19:46:04,989 INFO L185 Difference]: Start difference. First operand has 34 places, 29 transitions, 195 flow. Second operand 5 states and 123 transitions. [2021-03-25 19:46:04,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 267 flow [2021-03-25 19:46:04,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 211 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-03-25 19:46:04,993 INFO L241 Difference]: Finished difference. Result has 34 places, 28 transitions, 174 flow [2021-03-25 19:46:04,993 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=174, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2021-03-25 19:46:04,993 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2021-03-25 19:46:04,994 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:04,994 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 28 transitions, 174 flow [2021-03-25 19:46:04,994 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 28 transitions, 174 flow [2021-03-25 19:46:04,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 28 transitions, 174 flow [2021-03-25 19:46:04,998 INFO L129 PetriNetUnfolder]: 11/40 cut-off events. [2021-03-25 19:46:04,998 INFO L130 PetriNetUnfolder]: For 64/66 co-relation queries the response was YES. [2021-03-25 19:46:04,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 40 events. 11/40 cut-off events. For 64/66 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 91 event pairs, 2 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 112. Up to 19 conditions per place. [2021-03-25 19:46:04,998 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 19:46:05,025 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 19:46:05,025 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:46:05,025 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-25 19:46:05,026 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 178 flow [2021-03-25 19:46:05,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,026 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:05,026 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:05,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 19:46:05,027 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:05,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:05,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1899744680, now seen corresponding path program 2 times [2021-03-25 19:46:05,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:05,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066648794] [2021-03-25 19:46:05,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:05,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:05,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:46:05,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:46:05,060 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 19:46:05,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066648794] [2021-03-25 19:46:05,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:05,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:46:05,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822362422] [2021-03-25 19:46:05,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 19:46:05,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:05,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 19:46:05,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 19:46:05,062 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-03-25 19:46:05,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 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 19:46:05,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:05,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-03-25 19:46:05,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:05,136 INFO L129 PetriNetUnfolder]: 11/50 cut-off events. [2021-03-25 19:46:05,136 INFO L130 PetriNetUnfolder]: For 124/128 co-relation queries the response was YES. [2021-03-25 19:46:05,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 50 events. 11/50 cut-off events. For 124/128 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 151 event pairs, 0 based on Foata normal form. 6/56 useless extension candidates. Maximal degree in co-relation 167. Up to 23 conditions per place. [2021-03-25 19:46:05,137 INFO L132 encePairwiseOnDemand]: 34/44 looper letters, 9 selfloop transitions, 20 changer transitions 0/36 dead transitions. [2021-03-25 19:46:05,137 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 281 flow [2021-03-25 19:46:05,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 19:46:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 19:46:05,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions. [2021-03-25 19:46:05,139 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5492424242424242 [2021-03-25 19:46:05,139 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 145 transitions. [2021-03-25 19:46:05,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 145 transitions. [2021-03-25 19:46:05,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:05,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 145 transitions. [2021-03-25 19:46:05,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 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 19:46:05,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 19:46:05,141 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 19:46:05,141 INFO L185 Difference]: Start difference. First operand has 34 places, 28 transitions, 178 flow. Second operand 6 states and 145 transitions. [2021-03-25 19:46:05,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 281 flow [2021-03-25 19:46:05,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 254 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-25 19:46:05,143 INFO L241 Difference]: Finished difference. Result has 36 places, 33 transitions, 238 flow [2021-03-25 19:46:05,143 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=238, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2021-03-25 19:46:05,143 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2021-03-25 19:46:05,144 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:05,144 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 33 transitions, 238 flow [2021-03-25 19:46:05,144 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 33 transitions, 238 flow [2021-03-25 19:46:05,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 238 flow [2021-03-25 19:46:05,149 INFO L129 PetriNetUnfolder]: 9/48 cut-off events. [2021-03-25 19:46:05,149 INFO L130 PetriNetUnfolder]: For 123/127 co-relation queries the response was YES. [2021-03-25 19:46:05,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 48 events. 9/48 cut-off events. For 123/127 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 144 event pairs, 2 based on Foata normal form. 2/50 useless extension candidates. Maximal degree in co-relation 104. Up to 21 conditions per place. [2021-03-25 19:46:05,149 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 19:46:05,151 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 19:46:05,152 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:46:05,152 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 19:46:05,152 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 238 flow [2021-03-25 19:46:05,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 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 19:46:05,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:05,153 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:05,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 19:46:05,153 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:05,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:05,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1777653356, now seen corresponding path program 1 times [2021-03-25 19:46:05,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:05,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10230928] [2021-03-25 19:46:05,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:05,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:05,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:46:05,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:46:05,188 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 19:46:05,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10230928] [2021-03-25 19:46:05,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:05,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:46:05,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270049868] [2021-03-25 19:46:05,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 19:46:05,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:05,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 19:46:05,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 19:46:05,190 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-03-25 19:46:05,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:05,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-03-25 19:46:05,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:05,258 INFO L129 PetriNetUnfolder]: 10/50 cut-off events. [2021-03-25 19:46:05,258 INFO L130 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2021-03-25 19:46:05,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 50 events. 10/50 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 150 event pairs, 1 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 127. Up to 23 conditions per place. [2021-03-25 19:46:05,258 INFO L132 encePairwiseOnDemand]: 35/44 looper letters, 7 selfloop transitions, 19 changer transitions 2/35 dead transitions. [2021-03-25 19:46:05,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 35 transitions, 310 flow [2021-03-25 19:46:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 19:46:05,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 19:46:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2021-03-25 19:46:05,260 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5378787878787878 [2021-03-25 19:46:05,260 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 142 transitions. [2021-03-25 19:46:05,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 142 transitions. [2021-03-25 19:46:05,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:05,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 142 transitions. [2021-03-25 19:46:05,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 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 19:46:05,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 19:46:05,261 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 19:46:05,261 INFO L185 Difference]: Start difference. First operand has 36 places, 33 transitions, 238 flow. Second operand 6 states and 142 transitions. [2021-03-25 19:46:05,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 35 transitions, 310 flow [2021-03-25 19:46:05,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 35 transitions, 275 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-25 19:46:05,263 INFO L241 Difference]: Finished difference. Result has 37 places, 31 transitions, 226 flow [2021-03-25 19:46:05,263 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=226, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2021-03-25 19:46:05,264 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2021-03-25 19:46:05,264 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:05,264 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 31 transitions, 226 flow [2021-03-25 19:46:05,264 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 31 transitions, 226 flow [2021-03-25 19:46:05,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 226 flow [2021-03-25 19:46:05,268 INFO L129 PetriNetUnfolder]: 8/44 cut-off events. [2021-03-25 19:46:05,268 INFO L130 PetriNetUnfolder]: For 118/120 co-relation queries the response was YES. [2021-03-25 19:46:05,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 44 events. 8/44 cut-off events. For 118/120 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 122 event pairs, 2 based on Foata normal form. 2/46 useless extension candidates. Maximal degree in co-relation 92. Up to 12 conditions per place. [2021-03-25 19:46:05,268 INFO L142 LiptonReduction]: Number of co-enabled transitions 12 [2021-03-25 19:46:05,270 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 19:46:05,270 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:46:05,270 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-25 19:46:05,271 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 226 flow [2021-03-25 19:46:05,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,271 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:05,271 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:05,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 19:46:05,272 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:05,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:05,272 INFO L82 PathProgramCache]: Analyzing trace with hash 552165740, now seen corresponding path program 2 times [2021-03-25 19:46:05,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:05,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622922899] [2021-03-25 19:46:05,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:05,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:05,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:46:05,304 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 19:46:05,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622922899] [2021-03-25 19:46:05,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:05,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 19:46:05,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297622200] [2021-03-25 19:46:05,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 19:46:05,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:05,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 19:46:05,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 19:46:05,308 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-03-25 19:46:05,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 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 19:46:05,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:05,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-03-25 19:46:05,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:05,356 INFO L129 PetriNetUnfolder]: 8/46 cut-off events. [2021-03-25 19:46:05,356 INFO L130 PetriNetUnfolder]: For 137/139 co-relation queries the response was YES. [2021-03-25 19:46:05,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 46 events. 8/46 cut-off events. For 137/139 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 124 event pairs, 0 based on Foata normal form. 4/50 useless extension candidates. Maximal degree in co-relation 113. Up to 14 conditions per place. [2021-03-25 19:46:05,357 INFO L132 encePairwiseOnDemand]: 34/44 looper letters, 10 selfloop transitions, 18 changer transitions 3/38 dead transitions. [2021-03-25 19:46:05,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 38 transitions, 343 flow [2021-03-25 19:46:05,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 19:46:05,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 19:46:05,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2021-03-25 19:46:05,358 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5636363636363636 [2021-03-25 19:46:05,358 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 124 transitions. [2021-03-25 19:46:05,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 124 transitions. [2021-03-25 19:46:05,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:05,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 124 transitions. [2021-03-25 19:46:05,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 0 states have call successors, (0), 0 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 19:46:05,359 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 0 states have call successors, (0), 0 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 19:46:05,360 INFO L185 Difference]: Start difference. First operand has 37 places, 31 transitions, 226 flow. Second operand 5 states and 124 transitions. [2021-03-25 19:46:05,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 38 transitions, 343 flow [2021-03-25 19:46:05,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 38 transitions, 304 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-25 19:46:05,362 INFO L241 Difference]: Finished difference. Result has 38 places, 34 transitions, 290 flow [2021-03-25 19:46:05,362 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=290, PETRI_PLACES=38, PETRI_TRANSITIONS=34} [2021-03-25 19:46:05,362 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2021-03-25 19:46:05,362 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:05,362 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 34 transitions, 290 flow [2021-03-25 19:46:05,363 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 34 transitions, 290 flow [2021-03-25 19:46:05,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 290 flow [2021-03-25 19:46:05,366 INFO L129 PetriNetUnfolder]: 6/39 cut-off events. [2021-03-25 19:46:05,366 INFO L130 PetriNetUnfolder]: For 103/105 co-relation queries the response was YES. [2021-03-25 19:46:05,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 39 events. 6/39 cut-off events. For 103/105 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 95 event pairs, 0 based on Foata normal form. 2/41 useless extension candidates. Maximal degree in co-relation 97. Up to 17 conditions per place. [2021-03-25 19:46:05,367 INFO L142 LiptonReduction]: Number of co-enabled transitions 12 [2021-03-25 19:46:05,368 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 19:46:05,369 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:46:05,369 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 19:46:05,369 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 34 transitions, 290 flow [2021-03-25 19:46:05,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 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 19:46:05,370 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:05,370 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:05,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 19:46:05,370 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:05,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:05,370 INFO L82 PathProgramCache]: Analyzing trace with hash 382284786, now seen corresponding path program 1 times [2021-03-25 19:46:05,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:05,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572673163] [2021-03-25 19:46:05,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:05,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:05,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 19:46:05,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:46:05,401 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 19:46:05,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572673163] [2021-03-25 19:46:05,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:05,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:46:05,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374796747] [2021-03-25 19:46:05,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 19:46:05,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:05,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 19:46:05,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 19:46:05,403 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-03-25 19:46:05,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:05,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-03-25 19:46:05,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:05,455 INFO L129 PetriNetUnfolder]: 7/41 cut-off events. [2021-03-25 19:46:05,455 INFO L130 PetriNetUnfolder]: For 144/148 co-relation queries the response was YES. [2021-03-25 19:46:05,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 41 events. 7/41 cut-off events. For 144/148 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 97 event pairs, 0 based on Foata normal form. 5/46 useless extension candidates. Maximal degree in co-relation 115. Up to 18 conditions per place. [2021-03-25 19:46:05,459 INFO L132 encePairwiseOnDemand]: 35/44 looper letters, 8 selfloop transitions, 16 changer transitions 3/34 dead transitions. [2021-03-25 19:46:05,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 341 flow [2021-03-25 19:46:05,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 19:46:05,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 19:46:05,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 141 transitions. [2021-03-25 19:46:05,460 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5340909090909091 [2021-03-25 19:46:05,461 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 141 transitions. [2021-03-25 19:46:05,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 141 transitions. [2021-03-25 19:46:05,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:05,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 141 transitions. [2021-03-25 19:46:05,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.5) internal successors, (141), 6 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 19:46:05,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 19:46:05,465 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 19:46:05,465 INFO L185 Difference]: Start difference. First operand has 38 places, 34 transitions, 290 flow. Second operand 6 states and 141 transitions. [2021-03-25 19:46:05,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 341 flow [2021-03-25 19:46:05,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 316 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 19:46:05,467 INFO L241 Difference]: Finished difference. Result has 40 places, 29 transitions, 249 flow [2021-03-25 19:46:05,467 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2021-03-25 19:46:05,467 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2021-03-25 19:46:05,468 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:05,468 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 29 transitions, 249 flow [2021-03-25 19:46:05,468 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 29 transitions, 249 flow [2021-03-25 19:46:05,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 29 transitions, 249 flow [2021-03-25 19:46:05,471 INFO L129 PetriNetUnfolder]: 5/34 cut-off events. [2021-03-25 19:46:05,471 INFO L130 PetriNetUnfolder]: For 150/152 co-relation queries the response was YES. [2021-03-25 19:46:05,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 34 events. 5/34 cut-off events. For 150/152 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 70 event pairs, 0 based on Foata normal form. 2/36 useless extension candidates. Maximal degree in co-relation 95. Up to 14 conditions per place. [2021-03-25 19:46:05,472 INFO L142 LiptonReduction]: Number of co-enabled transitions 12 [2021-03-25 19:46:05,473 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 19:46:05,473 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:46:05,474 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-25 19:46:05,474 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 249 flow [2021-03-25 19:46:05,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:05,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:05,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 19:46:05,475 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:05,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:05,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1229473588, now seen corresponding path program 3 times [2021-03-25 19:46:05,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:05,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686759176] [2021-03-25 19:46:05,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:05,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:05,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:46:05,505 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 19:46:05,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686759176] [2021-03-25 19:46:05,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:05,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 19:46:05,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662308394] [2021-03-25 19:46:05,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 19:46:05,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:05,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 19:46:05,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 19:46:05,507 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-03-25 19:46:05,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 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 19:46:05,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:05,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-03-25 19:46:05,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:05,562 INFO L129 PetriNetUnfolder]: 6/37 cut-off events. [2021-03-25 19:46:05,562 INFO L130 PetriNetUnfolder]: For 149/149 co-relation queries the response was YES. [2021-03-25 19:46:05,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 37 events. 6/37 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 73 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 112. Up to 16 conditions per place. [2021-03-25 19:46:05,563 INFO L132 encePairwiseOnDemand]: 35/44 looper letters, 6 selfloop transitions, 15 changer transitions 3/31 dead transitions. [2021-03-25 19:46:05,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 307 flow [2021-03-25 19:46:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 19:46:05,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 19:46:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2021-03-25 19:46:05,564 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5378787878787878 [2021-03-25 19:46:05,564 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 142 transitions. [2021-03-25 19:46:05,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 142 transitions. [2021-03-25 19:46:05,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:05,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 142 transitions. [2021-03-25 19:46:05,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 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 19:46:05,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 19:46:05,566 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 19:46:05,566 INFO L185 Difference]: Start difference. First operand has 40 places, 29 transitions, 249 flow. Second operand 6 states and 142 transitions. [2021-03-25 19:46:05,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 307 flow [2021-03-25 19:46:05,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 31 transitions, 270 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 19:46:05,568 INFO L241 Difference]: Finished difference. Result has 39 places, 26 transitions, 211 flow [2021-03-25 19:46:05,568 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=211, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2021-03-25 19:46:05,568 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2021-03-25 19:46:05,568 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:05,569 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 26 transitions, 211 flow [2021-03-25 19:46:05,569 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 26 transitions, 211 flow [2021-03-25 19:46:05,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 26 transitions, 211 flow [2021-03-25 19:46:05,572 INFO L129 PetriNetUnfolder]: 4/30 cut-off events. [2021-03-25 19:46:05,572 INFO L130 PetriNetUnfolder]: For 125/126 co-relation queries the response was YES. [2021-03-25 19:46:05,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 30 events. 4/30 cut-off events. For 125/126 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 1/31 useless extension candidates. Maximal degree in co-relation 82. Up to 13 conditions per place. [2021-03-25 19:46:05,572 INFO L142 LiptonReduction]: Number of co-enabled transitions 6 [2021-03-25 19:46:05,574 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 19:46:05,574 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:46:05,575 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 19:46:05,575 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 204 flow [2021-03-25 19:46:05,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 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 19:46:05,575 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:05,575 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:05,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 19:46:05,576 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:05,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:05,576 INFO L82 PathProgramCache]: Analyzing trace with hash 569557410, now seen corresponding path program 4 times [2021-03-25 19:46:05,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:05,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820345867] [2021-03-25 19:46:05,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:05,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:05,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:46:05,610 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 19:46:05,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820345867] [2021-03-25 19:46:05,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:05,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 19:46:05,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311806168] [2021-03-25 19:46:05,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:46:05,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:05,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:46:05,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:46:05,612 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-03-25 19:46:05,612 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 204 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:05,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-03-25 19:46:05,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:05,665 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-03-25 19:46:05,665 INFO L130 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2021-03-25 19:46:05,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 30 events. 3/30 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 54. Up to 12 conditions per place. [2021-03-25 19:46:05,665 INFO L132 encePairwiseOnDemand]: 35/44 looper letters, 5 selfloop transitions, 12 changer transitions 2/26 dead transitions. [2021-03-25 19:46:05,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 26 transitions, 248 flow [2021-03-25 19:46:05,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 19:46:05,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 19:46:05,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 5 states and 118 transitions. [2021-03-25 19:46:05,666 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5363636363636364 [2021-03-25 19:46:05,666 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 118 transitions. [2021-03-25 19:46:05,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 118 transitions. [2021-03-25 19:46:05,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:05,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 118 transitions. [2021-03-25 19:46:05,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 0 states have call successors, (0), 0 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 19:46:05,668 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 0 states have call successors, (0), 0 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 19:46:05,668 INFO L185 Difference]: Start difference. First operand has 39 places, 25 transitions, 204 flow. Second operand 5 states and 118 transitions. [2021-03-25 19:46:05,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 26 transitions, 248 flow [2021-03-25 19:46:05,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 209 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-25 19:46:05,670 INFO L241 Difference]: Finished difference. Result has 38 places, 23 transitions, 175 flow [2021-03-25 19:46:05,670 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=175, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2021-03-25 19:46:05,670 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2021-03-25 19:46:05,670 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:05,670 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 23 transitions, 175 flow [2021-03-25 19:46:05,670 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 23 transitions, 175 flow [2021-03-25 19:46:05,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 23 transitions, 175 flow [2021-03-25 19:46:05,673 INFO L129 PetriNetUnfolder]: 2/26 cut-off events. [2021-03-25 19:46:05,673 INFO L130 PetriNetUnfolder]: For 70/71 co-relation queries the response was YES. [2021-03-25 19:46:05,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 26 events. 2/26 cut-off events. For 70/71 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 28. Up to 9 conditions per place. [2021-03-25 19:46:05,673 INFO L142 LiptonReduction]: Number of co-enabled transitions 6 [2021-03-25 19:46:05,757 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 19:46:05,758 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 19:46:05,758 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-03-25 19:46:05,760 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 161 flow [2021-03-25 19:46:05,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,760 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:05,760 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:05,761 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 19:46:05,761 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:05,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:05,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1755177420, now seen corresponding path program 5 times [2021-03-25 19:46:05,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:05,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942428534] [2021-03-25 19:46:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:05,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:05,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:46:05,819 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 19:46:05,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942428534] [2021-03-25 19:46:05,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:05,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 19:46:05,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689611713] [2021-03-25 19:46:05,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:46:05,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:05,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:46:05,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:46:05,821 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2021-03-25 19:46:05,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 161 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:05,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2021-03-25 19:46:05,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:05,879 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-25 19:46:05,880 INFO L130 PetriNetUnfolder]: For 82/83 co-relation queries the response was YES. [2021-03-25 19:46:05,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 22 events. 0/22 cut-off events. For 82/83 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 3/25 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-25 19:46:05,881 INFO L132 encePairwiseOnDemand]: 36/45 looper letters, 3 selfloop transitions, 5 changer transitions 5/20 dead transitions. [2021-03-25 19:46:05,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 20 transitions, 165 flow [2021-03-25 19:46:05,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 19:46:05,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 19:46:05,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2021-03-25 19:46:05,882 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2021-03-25 19:46:05,883 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 155 transitions. [2021-03-25 19:46:05,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 155 transitions. [2021-03-25 19:46:05,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:05,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 155 transitions. [2021-03-25 19:46:05,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 0 states have call successors, (0), 0 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 19:46:05,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 0 states have call successors, (0), 0 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 19:46:05,884 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 0 states have call successors, (0), 0 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 19:46:05,884 INFO L185 Difference]: Start difference. First operand has 37 places, 22 transitions, 161 flow. Second operand 7 states and 155 transitions. [2021-03-25 19:46:05,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 20 transitions, 165 flow [2021-03-25 19:46:05,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 20 transitions, 116 flow, removed 1 selfloop flow, removed 11 redundant places. [2021-03-25 19:46:05,886 INFO L241 Difference]: Finished difference. Result has 32 places, 15 transitions, 68 flow [2021-03-25 19:46:05,887 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=68, PETRI_PLACES=32, PETRI_TRANSITIONS=15} [2021-03-25 19:46:05,887 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2021-03-25 19:46:05,887 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:05,887 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 15 transitions, 68 flow [2021-03-25 19:46:05,887 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 15 transitions, 68 flow [2021-03-25 19:46:05,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 15 transitions, 68 flow [2021-03-25 19:46:05,890 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-25 19:46:05,890 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-03-25 19:46:05,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 15 events. 0/15 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-25 19:46:05,890 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 19:46:05,891 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 19:46:05,891 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:46:05,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-25 19:46:05,892 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 15 transitions, 68 flow [2021-03-25 19:46:05,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,893 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 19:46:05,893 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 19:46:05,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 19:46:05,893 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 19:46:05,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 19:46:05,893 INFO L82 PathProgramCache]: Analyzing trace with hash 148450357, now seen corresponding path program 1 times [2021-03-25 19:46:05,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 19:46:05,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641377971] [2021-03-25 19:46:05,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 19:46:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 19:46:05,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 19:46:05,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 19:46:05,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 19:46:05,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 19:46:05,942 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 19:46:05,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641377971] [2021-03-25 19:46:05,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 19:46:05,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 19:46:05,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345707654] [2021-03-25 19:46:05,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 19:46:05,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 19:46:05,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 19:46:05,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-25 19:46:05,945 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2021-03-25 19:46:05,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 15 transitions, 68 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 19:46:05,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2021-03-25 19:46:05,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 19:46:05,977 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-03-25 19:46:05,977 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-25 19:46:05,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 9 events. 0/9 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 19:46:05,978 INFO L132 encePairwiseOnDemand]: 39/45 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2021-03-25 19:46:05,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 9 transitions, 62 flow [2021-03-25 19:46:05,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 19:46:05,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 19:46:05,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 147 transitions. [2021-03-25 19:46:05,979 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2021-03-25 19:46:05,979 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 147 transitions. [2021-03-25 19:46:05,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 147 transitions. [2021-03-25 19:46:05,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 19:46:05,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 147 transitions. [2021-03-25 19:46:05,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 0 states have call successors, (0), 0 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 19:46:05,980 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 0 states have call successors, (0), 0 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 19:46:05,981 INFO L185 Difference]: Start difference. First operand has 29 places, 15 transitions, 68 flow. Second operand 7 states and 147 transitions. [2021-03-25 19:46:05,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 9 transitions, 62 flow [2021-03-25 19:46:05,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 9 transitions, 41 flow, removed 1 selfloop flow, removed 10 redundant places. [2021-03-25 19:46:05,981 INFO L241 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2021-03-25 19:46:05,981 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2021-03-25 19:46:05,981 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, -6 predicate places. [2021-03-25 19:46:05,981 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 19:46:05,982 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 0 transitions, 0 flow [2021-03-25 19:46:05,982 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 0 transitions, 0 flow [2021-03-25 19:46:05,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 19:46:05,982 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 19:46:05,982 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 19:46:05,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 19:46:05,982 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 19:46:05,982 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 19:46:05,982 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 19:46:05,982 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 19:46:05,984 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 19:46:05,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 19:46:05,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 19:46:05,987 INFO L202 PluginConnector]: Adding new model ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 07:46:05 BasicIcfg [2021-03-25 19:46:05,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 19:46:05,989 INFO L168 Benchmark]: Toolchain (without parser) took 3268.52 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 236.9 MB in the beginning and 324.7 MB in the end (delta: -87.8 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.0 GB. [2021-03-25 19:46:05,990 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 19:46:05,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.91 ms. Allocated memory is still 255.9 MB. Free memory was 236.7 MB in the beginning and 235.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 19:46:05,990 INFO L168 Benchmark]: Boogie Preprocessor took 15.59 ms. Allocated memory is still 255.9 MB. Free memory was 235.3 MB in the beginning and 234.4 MB in the end (delta: 956.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 19:46:05,990 INFO L168 Benchmark]: RCFGBuilder took 247.79 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 238.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. [2021-03-25 19:46:05,991 INFO L168 Benchmark]: TraceAbstraction took 2965.75 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 237.7 MB in the beginning and 324.7 MB in the end (delta: -87.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.0 GB. [2021-03-25 19:46:05,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.91 ms. Allocated memory is still 255.9 MB. Free memory was 236.7 MB in the beginning and 235.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.59 ms. Allocated memory is still 255.9 MB. Free memory was 235.3 MB in the beginning and 234.4 MB in the end (delta: 956.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 247.79 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 238.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2965.75 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 237.7 MB in the beginning and 324.7 MB in the end (delta: -87.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 625.6ms, 35 PlacesBefore, 26 PlacesAfterwards, 25 TransitionsBefore, 16 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 375 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 186, positive: 158, positive conditional: 0, positive unconditional: 158, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 146, positive: 126, positive conditional: 0, positive unconditional: 126, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 146, positive: 126, positive conditional: 0, positive unconditional: 126, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 146, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 186, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 128, negative conditional: 0, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 186, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 146, unknown conditional: 0, unknown unconditional: 146] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.1ms, 27 PlacesBefore, 27 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 8 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 155.9ms, 30 PlacesBefore, 30 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 72 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 84.0ms, 35 PlacesBefore, 34 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 60 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.1ms, 34 PlacesBefore, 34 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6ms, 36 PlacesBefore, 36 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2ms, 37 PlacesBefore, 37 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 12 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0ms, 38 PlacesBefore, 38 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 12 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.4ms, 40 PlacesBefore, 40 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 12 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6ms, 39 PlacesBefore, 39 PlacesAfterwards, 26 TransitionsBefore, 25 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 87.4ms, 38 PlacesBefore, 37 PlacesAfterwards, 23 TransitionsBefore, 22 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2ms, 32 PlacesBefore, 29 PlacesAfterwards, 15 TransitionsBefore, 15 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 20 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 65]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2879.9ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 884.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 689.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 28 SDtfs, 26 SDslu, 5 SDs, 0 SdLazy, 615 SolverSat, 116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 370.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 252.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=7, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.3ms SsaConstructionTime, 102.6ms SatisfiabilityAnalysisTime, 485.8ms InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 490 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...