/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 22:24:26,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 22:24:26,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 22:24:26,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 22:24:26,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 22:24:26,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 22:24:26,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 22:24:26,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 22:24:26,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 22:24:26,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 22:24:26,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 22:24:26,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-03-24 22:24:26,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 22:24:26,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 22:24:26,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 22:24:26,627 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-SemanticLbe.epf [2021-03-24 22:24:26,666 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 22:24:26,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 22:24:26,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 22:24:26,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 22:24:26,670 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 22:24:26,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 22:24:26,670 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 22:24:26,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 22:24:26,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 22:24:26,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 22:24:26,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 22:24:26,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 22:24:26,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 22:24:26,672 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 22:24:26,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 22:24:26,672 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 22:24:26,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 22:24:26,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 22:24:26,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 22:24:26,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 22:24:26,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 22:24:26,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 22:24:26,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 22:24:26,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 22:24:26,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 22:24:26,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 22:24:26,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 22:24:26,674 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 22:24:26,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 22:24:26,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 22:24:26,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 22:24:26,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 22:24:26,979 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-24 22:24:26,981 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-24 22:24:26,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl [2021-03-24 22:24:26,982 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl' [2021-03-24 22:24:27,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 22:24:27,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-24 22:24:27,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 22:24:27,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 22:24:27,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 22:24:27,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:24:27" (1/1) ... [2021-03-24 22:24:27,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:24:27" (1/1) ... [2021-03-24 22:24:27,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 22:24:27,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 22:24:27,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 22:24:27,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 22:24:27,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:24:27" (1/1) ... [2021-03-24 22:24:27,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:24:27" (1/1) ... [2021-03-24 22:24:27,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:24:27" (1/1) ... [2021-03-24 22:24:27,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:24:27" (1/1) ... [2021-03-24 22:24:27,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:24:27" (1/1) ... [2021-03-24 22:24:27,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:24:27" (1/1) ... [2021-03-24 22:24:27,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:24:27" (1/1) ... [2021-03-24 22:24:27,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 22:24:27,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 22:24:27,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 22:24:27,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 22:24:27,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:24:27" (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 [2021-03-24 22:24:27,137 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-24 22:24:27,137 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-24 22:24:27,137 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-24 22:24:27,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-24 22:24:27,139 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-24 22:24:27,139 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-24 22:24:27,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-24 22:24:27,139 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-24 22:24:27,140 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-24 22:24:27,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-24 22:24:27,140 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-24 22:24:27,140 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-24 22:24:27,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-24 22:24:27,140 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-24 22:24:27,140 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-24 22:24:27,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-03-24 22:24:27,141 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-03-24 22:24:27,141 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-03-24 22:24:27,142 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-24 22:24:27,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 22:24:27,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 22:24:27,142 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-24 22:24:27,142 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-24 22:24:27,143 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-24 22:24:27,143 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-24 22:24:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-24 22:24:27,144 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-24 22:24:27,144 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-03-24 22:24:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-03-24 22:24:27,145 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-03-24 22:24:27,145 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-24 22:24:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-24 22:24:27,145 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-24 22:24:27,145 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-24 22:24:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-24 22:24:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-24 22:24:27,147 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 22:24:27,328 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 22:24:27,328 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-24 22:24:27,329 INFO L202 PluginConnector]: Adding new model example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 10:24:27 BoogieIcfgContainer [2021-03-24 22:24:27,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 22:24:27,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 22:24:27,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 22:24:27,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 22:24:27,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:24:27" (1/2) ... [2021-03-24 22:24:27,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b281bb and model type example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 10:24:27, skipping insertion in model container [2021-03-24 22:24:27,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 10:24:27" (2/2) ... [2021-03-24 22:24:27,335 INFO L111 eAbstractionObserver]: Analyzing ICFG example_11.bpl [2021-03-24 22:24:27,340 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 22:24:27,342 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 22:24:27,343 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 22:24:27,606 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-03-24 22:24:27,621 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-03-24 22:24:27,650 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 22:24:27,650 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 22:24:27,650 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 22:24:27,650 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 22:24:27,651 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 22:24:27,651 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 22:24:27,651 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 22:24:27,651 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 22:24:27,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 168 transitions, 754 flow [2021-03-24 22:24:28,832 INFO L129 PetriNetUnfolder]: 9217/11300 cut-off events. [2021-03-24 22:24:28,832 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2021-03-24 22:24:28,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22598 conditions, 11300 events. 9217/11300 cut-off events. For 11264/11264 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 45968 event pairs, 0 based on Foata normal form. 0/11299 useless extension candidates. Maximal degree in co-relation 10292. Up to 2772 conditions per place. [2021-03-24 22:24:28,869 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 168 transitions, 754 flow [2021-03-24 22:24:29,000 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 155 transitions, 706 flow [2021-03-24 22:24:29,002 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 22:24:29,013 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 155 transitions, 706 flow [2021-03-24 22:24:29,015 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 155 transitions, 706 flow [2021-03-24 22:24:29,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 155 transitions, 706 flow [2021-03-24 22:24:29,912 INFO L129 PetriNetUnfolder]: 9217/11298 cut-off events. [2021-03-24 22:24:29,913 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2021-03-24 22:24:29,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22596 conditions, 11298 events. 9217/11298 cut-off events. For 11264/11264 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 44505 event pairs, 0 based on Foata normal form. 0/11298 useless extension candidates. Maximal degree in co-relation 10292. Up to 2772 conditions per place. [2021-03-24 22:24:30,087 INFO L142 LiptonReduction]: Number of co-enabled transitions 5060 [2021-03-24 22:24:30,333 INFO L154 LiptonReduction]: Checked pairs total: 1375 [2021-03-24 22:24:30,333 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-24 22:24:30,335 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1334 [2021-03-24 22:24:31,096 INFO L129 PetriNetUnfolder]: 9217/11286 cut-off events. [2021-03-24 22:24:31,097 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2021-03-24 22:24:31,097 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:31,098 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:31,098 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:31,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:31,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1169348747, now seen corresponding path program 1 times [2021-03-24 22:24:31,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:31,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397618657] [2021-03-24 22:24:31,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:31,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:31,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:31,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:31,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:24:31,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:31,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:31,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:31,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397618657] [2021-03-24 22:24:31,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:31,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:24:31,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022551961] [2021-03-24 22:24:31,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:24:31,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:31,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:24:31,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:24:31,293 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2021-03-24 22:24:31,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 144 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:31,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:31,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2021-03-24 22:24:31,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:32,181 INFO L129 PetriNetUnfolder]: 6657/8341 cut-off events. [2021-03-24 22:24:32,181 INFO L130 PetriNetUnfolder]: For 10753/10753 co-relation queries the response was YES. [2021-03-24 22:24:32,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17333 conditions, 8341 events. 6657/8341 cut-off events. For 10753/10753 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 36601 event pairs, 0 based on Foata normal form. 386/8727 useless extension candidates. Maximal degree in co-relation 10266. Up to 2310 conditions per place. [2021-03-24 22:24:32,256 INFO L132 encePairwiseOnDemand]: 173/179 looper letters, 6 selfloop transitions, 1 changer transitions 0/139 dead transitions. [2021-03-24 22:24:32,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 139 transitions, 673 flow [2021-03-24 22:24:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:24:32,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:24:32,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2021-03-24 22:24:32,273 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2021-03-24 22:24:32,274 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2021-03-24 22:24:32,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2021-03-24 22:24:32,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:32,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2021-03-24 22:24:32,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:32,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:32,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:32,289 INFO L185 Difference]: Start difference. First operand has 68 places, 144 transitions, 684 flow. Second operand 3 states and 513 transitions. [2021-03-24 22:24:32,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 139 transitions, 673 flow [2021-03-24 22:24:32,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 139 transitions, 419 flow, removed 0 selfloop flow, removed 22 redundant places. [2021-03-24 22:24:32,437 INFO L241 Difference]: Finished difference. Result has 48 places, 139 transitions, 407 flow [2021-03-24 22:24:32,438 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=48, PETRI_TRANSITIONS=139} [2021-03-24 22:24:32,439 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -20 predicate places. [2021-03-24 22:24:32,439 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 139 transitions, 407 flow [2021-03-24 22:24:32,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:32,440 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:32,440 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:32,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 22:24:32,440 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:32,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:32,441 INFO L82 PathProgramCache]: Analyzing trace with hash 932634075, now seen corresponding path program 1 times [2021-03-24 22:24:32,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:32,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780642830] [2021-03-24 22:24:32,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:32,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:32,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:32,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:32,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:24:32,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:32,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:32,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:32,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780642830] [2021-03-24 22:24:32,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:32,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:24:32,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541879086] [2021-03-24 22:24:32,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:24:32,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:32,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:24:32,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:24:32,468 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2021-03-24 22:24:32,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 139 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:32,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:32,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2021-03-24 22:24:32,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:32,730 INFO L129 PetriNetUnfolder]: 3930/5106 cut-off events. [2021-03-24 22:24:32,731 INFO L130 PetriNetUnfolder]: For 768/768 co-relation queries the response was YES. [2021-03-24 22:24:32,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5508 conditions, 5106 events. 3930/5106 cut-off events. For 768/768 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 24566 event pairs, 0 based on Foata normal form. 382/5488 useless extension candidates. Maximal degree in co-relation 5492. Up to 1320 conditions per place. [2021-03-24 22:24:32,766 INFO L132 encePairwiseOnDemand]: 172/179 looper letters, 5 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2021-03-24 22:24:32,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 133 transitions, 401 flow [2021-03-24 22:24:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:24:32,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:24:32,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2021-03-24 22:24:32,768 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2021-03-24 22:24:32,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2021-03-24 22:24:32,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2021-03-24 22:24:32,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:32,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2021-03-24 22:24:32,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:32,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:32,773 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:32,773 INFO L185 Difference]: Start difference. First operand has 48 places, 139 transitions, 407 flow. Second operand 3 states and 513 transitions. [2021-03-24 22:24:32,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 133 transitions, 401 flow [2021-03-24 22:24:32,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 133 transitions, 400 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:32,779 INFO L241 Difference]: Finished difference. Result has 49 places, 133 transitions, 390 flow [2021-03-24 22:24:32,779 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=390, PETRI_PLACES=49, PETRI_TRANSITIONS=133} [2021-03-24 22:24:32,781 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -19 predicate places. [2021-03-24 22:24:32,781 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 133 transitions, 390 flow [2021-03-24 22:24:32,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:32,782 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:32,782 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:32,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 22:24:32,782 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:32,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:32,783 INFO L82 PathProgramCache]: Analyzing trace with hash 961797627, now seen corresponding path program 1 times [2021-03-24 22:24:32,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:32,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383806619] [2021-03-24 22:24:32,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:32,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:32,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:32,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:32,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:24:32,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:32,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:32,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383806619] [2021-03-24 22:24:32,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:32,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:24:32,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399525003] [2021-03-24 22:24:32,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:24:32,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:32,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:24:32,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:24:32,832 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2021-03-24 22:24:32,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 133 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:32,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:32,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2021-03-24 22:24:32,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:32,988 INFO L129 PetriNetUnfolder]: 1794/2471 cut-off events. [2021-03-24 22:24:32,989 INFO L130 PetriNetUnfolder]: For 479/479 co-relation queries the response was YES. [2021-03-24 22:24:32,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2664 conditions, 2471 events. 1794/2471 cut-off events. For 479/479 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 11626 event pairs, 0 based on Foata normal form. 303/2774 useless extension candidates. Maximal degree in co-relation 2648. Up to 495 conditions per place. [2021-03-24 22:24:32,998 INFO L132 encePairwiseOnDemand]: 171/179 looper letters, 4 selfloop transitions, 1 changer transitions 0/126 dead transitions. [2021-03-24 22:24:32,998 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 126 transitions, 379 flow [2021-03-24 22:24:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:24:32,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:24:32,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2021-03-24 22:24:33,000 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2021-03-24 22:24:33,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:33,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,003 INFO L185 Difference]: Start difference. First operand has 49 places, 133 transitions, 390 flow. Second operand 3 states and 513 transitions. [2021-03-24 22:24:33,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 126 transitions, 379 flow [2021-03-24 22:24:33,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 126 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:33,008 INFO L241 Difference]: Finished difference. Result has 50 places, 126 transitions, 370 flow [2021-03-24 22:24:33,008 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=50, PETRI_TRANSITIONS=126} [2021-03-24 22:24:33,008 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -18 predicate places. [2021-03-24 22:24:33,008 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 126 transitions, 370 flow [2021-03-24 22:24:33,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,009 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:33,009 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:33,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 22:24:33,009 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:33,009 INFO L82 PathProgramCache]: Analyzing trace with hash -171765885, now seen corresponding path program 1 times [2021-03-24 22:24:33,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:33,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806071800] [2021-03-24 22:24:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:33,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:33,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:24:33,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:33,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:33,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806071800] [2021-03-24 22:24:33,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:33,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:24:33,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337338109] [2021-03-24 22:24:33,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:24:33,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:33,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:24:33,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:24:33,070 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2021-03-24 22:24:33,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 126 transitions, 370 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:33,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2021-03-24 22:24:33,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:33,174 INFO L129 PetriNetUnfolder]: 1640/2288 cut-off events. [2021-03-24 22:24:33,175 INFO L130 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2021-03-24 22:24:33,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2517 conditions, 2288 events. 1640/2288 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 10574 event pairs, 0 based on Foata normal form. 29/2317 useless extension candidates. Maximal degree in co-relation 2500. Up to 495 conditions per place. [2021-03-24 22:24:33,186 INFO L132 encePairwiseOnDemand]: 175/179 looper letters, 8 selfloop transitions, 1 changer transitions 0/123 dead transitions. [2021-03-24 22:24:33,186 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 123 transitions, 379 flow [2021-03-24 22:24:33,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:24:33,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:24:33,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2021-03-24 22:24:33,189 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2021-03-24 22:24:33,191 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:33,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,200 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,200 INFO L185 Difference]: Start difference. First operand has 50 places, 126 transitions, 370 flow. Second operand 3 states and 513 transitions. [2021-03-24 22:24:33,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 123 transitions, 379 flow [2021-03-24 22:24:33,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 123 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:33,203 INFO L241 Difference]: Finished difference. Result has 51 places, 123 transitions, 362 flow [2021-03-24 22:24:33,203 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=51, PETRI_TRANSITIONS=123} [2021-03-24 22:24:33,203 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -17 predicate places. [2021-03-24 22:24:33,203 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 123 transitions, 362 flow [2021-03-24 22:24:33,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,204 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:33,204 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:33,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 22:24:33,204 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:33,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:33,205 INFO L82 PathProgramCache]: Analyzing trace with hash -387771049, now seen corresponding path program 1 times [2021-03-24 22:24:33,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:33,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602550051] [2021-03-24 22:24:33,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:33,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:33,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:24:33,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:33,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602550051] [2021-03-24 22:24:33,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:33,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:24:33,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241413758] [2021-03-24 22:24:33,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:24:33,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:33,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:24:33,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:24:33,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2021-03-24 22:24:33,242 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 123 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,242 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:33,242 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2021-03-24 22:24:33,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:33,284 INFO L129 PetriNetUnfolder]: 429/680 cut-off events. [2021-03-24 22:24:33,284 INFO L130 PetriNetUnfolder]: For 218/218 co-relation queries the response was YES. [2021-03-24 22:24:33,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 680 events. 429/680 cut-off events. For 218/218 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2831 event pairs, 0 based on Foata normal form. 207/887 useless extension candidates. Maximal degree in co-relation 698. Up to 108 conditions per place. [2021-03-24 22:24:33,288 INFO L132 encePairwiseOnDemand]: 169/179 looper letters, 2 selfloop transitions, 1 changer transitions 0/114 dead transitions. [2021-03-24 22:24:33,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 114 transitions, 341 flow [2021-03-24 22:24:33,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:24:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:24:33,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2021-03-24 22:24:33,289 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2021-03-24 22:24:33,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:33,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,293 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,293 INFO L185 Difference]: Start difference. First operand has 51 places, 123 transitions, 362 flow. Second operand 3 states and 513 transitions. [2021-03-24 22:24:33,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 114 transitions, 341 flow [2021-03-24 22:24:33,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 114 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:33,295 INFO L241 Difference]: Finished difference. Result has 52 places, 114 transitions, 336 flow [2021-03-24 22:24:33,296 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=52, PETRI_TRANSITIONS=114} [2021-03-24 22:24:33,296 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -16 predicate places. [2021-03-24 22:24:33,296 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 114 transitions, 336 flow [2021-03-24 22:24:33,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,296 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:33,296 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:33,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 22:24:33,297 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:33,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:33,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1715683835, now seen corresponding path program 1 times [2021-03-24 22:24:33,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:33,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629754154] [2021-03-24 22:24:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:33,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:33,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:24:33,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:33,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629754154] [2021-03-24 22:24:33,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:33,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:24:33,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417572286] [2021-03-24 22:24:33,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:24:33,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:33,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:24:33,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:24:33,336 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2021-03-24 22:24:33,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 114 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:33,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2021-03-24 22:24:33,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:33,362 INFO L129 PetriNetUnfolder]: 95/191 cut-off events. [2021-03-24 22:24:33,362 INFO L130 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2021-03-24 22:24:33,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 191 events. 95/191 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 638 event pairs, 0 based on Foata normal form. 72/263 useless extension candidates. Maximal degree in co-relation 200. Up to 30 conditions per place. [2021-03-24 22:24:33,364 INFO L132 encePairwiseOnDemand]: 168/179 looper letters, 1 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2021-03-24 22:24:33,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 85 transitions, 253 flow [2021-03-24 22:24:33,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:24:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:24:33,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2021-03-24 22:24:33,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2021-03-24 22:24:33,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:33,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2021-03-24 22:24:33,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,368 INFO L185 Difference]: Start difference. First operand has 52 places, 114 transitions, 336 flow. Second operand 3 states and 513 transitions. [2021-03-24 22:24:33,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 85 transitions, 253 flow [2021-03-24 22:24:33,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 85 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:33,370 INFO L241 Difference]: Finished difference. Result has 53 places, 85 transitions, 250 flow [2021-03-24 22:24:33,370 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=53, PETRI_TRANSITIONS=85} [2021-03-24 22:24:33,371 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -15 predicate places. [2021-03-24 22:24:33,371 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 85 transitions, 250 flow [2021-03-24 22:24:33,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,372 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:33,372 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:33,372 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 22:24:33,373 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:33,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:33,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1910450227, now seen corresponding path program 1 times [2021-03-24 22:24:33,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:33,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504251061] [2021-03-24 22:24:33,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:33,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:33,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:24:33,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:33,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:33,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504251061] [2021-03-24 22:24:33,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:33,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:24:33,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463050991] [2021-03-24 22:24:33,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:24:33,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:33,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:24:33,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:24:33,402 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2021-03-24 22:24:33,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 85 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:33,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2021-03-24 22:24:33,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:33,416 INFO L129 PetriNetUnfolder]: 21/70 cut-off events. [2021-03-24 22:24:33,417 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-03-24 22:24:33,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 70 events. 21/70 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 125 event pairs, 0 based on Foata normal form. 23/93 useless extension candidates. Maximal degree in co-relation 80. Up to 12 conditions per place. [2021-03-24 22:24:33,417 INFO L132 encePairwiseOnDemand]: 170/179 looper letters, 1 selfloop transitions, 1 changer transitions 0/51 dead transitions. [2021-03-24 22:24:33,417 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 51 transitions, 152 flow [2021-03-24 22:24:33,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:24:33,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:24:33,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2021-03-24 22:24:33,419 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9515828677839852 [2021-03-24 22:24:33,419 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2021-03-24 22:24:33,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2021-03-24 22:24:33,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:33,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2021-03-24 22:24:33,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,421 INFO L185 Difference]: Start difference. First operand has 53 places, 85 transitions, 250 flow. Second operand 3 states and 511 transitions. [2021-03-24 22:24:33,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 51 transitions, 152 flow [2021-03-24 22:24:33,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 51 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:33,423 INFO L241 Difference]: Finished difference. Result has 54 places, 51 transitions, 149 flow [2021-03-24 22:24:33,423 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2021-03-24 22:24:33,424 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -14 predicate places. [2021-03-24 22:24:33,424 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 149 flow [2021-03-24 22:24:33,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,424 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:33,424 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:33,425 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 22:24:33,425 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:33,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:33,425 INFO L82 PathProgramCache]: Analyzing trace with hash -387132387, now seen corresponding path program 1 times [2021-03-24 22:24:33,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:33,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915467044] [2021-03-24 22:24:33,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:33,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:33,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:24:33,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:33,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:33,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915467044] [2021-03-24 22:24:33,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:33,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:24:33,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899643719] [2021-03-24 22:24:33,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:24:33,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:33,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:24:33,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:24:33,463 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2021-03-24 22:24:33,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:33,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2021-03-24 22:24:33,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:33,475 INFO L129 PetriNetUnfolder]: 12/57 cut-off events. [2021-03-24 22:24:33,476 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-24 22:24:33,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 57 events. 12/57 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 4/61 useless extension candidates. Maximal degree in co-relation 71. Up to 8 conditions per place. [2021-03-24 22:24:33,476 INFO L132 encePairwiseOnDemand]: 176/179 looper letters, 3 selfloop transitions, 1 changer transitions 0/49 dead transitions. [2021-03-24 22:24:33,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 49 transitions, 151 flow [2021-03-24 22:24:33,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:24:33,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:24:33,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2021-03-24 22:24:33,478 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9441340782122905 [2021-03-24 22:24:33,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 507 transitions. [2021-03-24 22:24:33,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions. [2021-03-24 22:24:33,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:33,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions. [2021-03-24 22:24:33,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,480 INFO L185 Difference]: Start difference. First operand has 54 places, 51 transitions, 149 flow. Second operand 3 states and 507 transitions. [2021-03-24 22:24:33,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 49 transitions, 151 flow [2021-03-24 22:24:33,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 49 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:33,481 INFO L241 Difference]: Finished difference. Result has 55 places, 49 transitions, 144 flow [2021-03-24 22:24:33,482 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=55, PETRI_TRANSITIONS=49} [2021-03-24 22:24:33,482 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -13 predicate places. [2021-03-24 22:24:33,482 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 49 transitions, 144 flow [2021-03-24 22:24:33,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:33,482 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:33,482 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:33,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 22:24:33,482 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:33,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:33,483 INFO L82 PathProgramCache]: Analyzing trace with hash 294836189, now seen corresponding path program 1 times [2021-03-24 22:24:33,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:33,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122748312] [2021-03-24 22:24:33,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:33,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:33,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:33,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:24:33,656 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 22:24:33,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 22:24:33,691 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 22:24:33,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 22:24:33,741 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-24 22:24:33,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 22:24:33,789 INFO L142 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size [2021-03-24 22:24:33,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 22:24:33,828 INFO L142 QuantifierPusher]: treesize reduction 9, result has 83.3 percent of original size [2021-03-24 22:24:33,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 22:24:33,878 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 22:24:33,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 22:24:33,957 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-24 22:24:33,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 22:24:34,052 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-24 22:24:34,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 22:24:34,167 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-24 22:24:34,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-24 22:24:34,252 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-24 22:24:34,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 22:24:34,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:34,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122748312] [2021-03-24 22:24:34,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:34,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 22:24:34,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133355342] [2021-03-24 22:24:34,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 22:24:34,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:34,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 22:24:34,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-24 22:24:34,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2021-03-24 22:24:34,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 144 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:34,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:34,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2021-03-24 22:24:34,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:35,582 INFO L129 PetriNetUnfolder]: 13170/17677 cut-off events. [2021-03-24 22:24:35,583 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 22:24:35,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33070 conditions, 17677 events. 13170/17677 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1259. Compared 99852 event pairs, 4097 based on Foata normal form. 1/17127 useless extension candidates. Maximal degree in co-relation 33060. Up to 5633 conditions per place. [2021-03-24 22:24:35,781 INFO L132 encePairwiseOnDemand]: 167/179 looper letters, 65 selfloop transitions, 11 changer transitions 0/113 dead transitions. [2021-03-24 22:24:35,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 113 transitions, 424 flow [2021-03-24 22:24:35,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 22:24:35,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 22:24:35,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-03-24 22:24:35,786 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2021-03-24 22:24:35,786 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-03-24 22:24:35,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-03-24 22:24:35,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:35,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-03-24 22:24:35,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:35,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:35,795 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:35,795 INFO L185 Difference]: Start difference. First operand has 55 places, 49 transitions, 144 flow. Second operand 13 states and 2092 transitions. [2021-03-24 22:24:35,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 113 transitions, 424 flow [2021-03-24 22:24:35,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 113 transitions, 423 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:35,798 INFO L241 Difference]: Finished difference. Result has 77 places, 59 transitions, 228 flow [2021-03-24 22:24:35,798 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=228, PETRI_PLACES=77, PETRI_TRANSITIONS=59} [2021-03-24 22:24:35,798 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 9 predicate places. [2021-03-24 22:24:35,798 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 59 transitions, 228 flow [2021-03-24 22:24:35,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:35,799 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:35,799 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:35,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 22:24:35,800 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:35,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:35,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1223284559, now seen corresponding path program 1 times [2021-03-24 22:24:35,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:35,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115460062] [2021-03-24 22:24:35,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:35,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:35,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:35,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:35,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:24:35,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:35,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:35,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:35,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115460062] [2021-03-24 22:24:35,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:35,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:24:35,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909038275] [2021-03-24 22:24:35,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:24:35,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:35,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:24:35,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:24:35,816 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2021-03-24 22:24:35,817 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 59 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:35,817 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:35,817 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2021-03-24 22:24:35,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:35,831 INFO L129 PetriNetUnfolder]: 4/144 cut-off events. [2021-03-24 22:24:35,831 INFO L130 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2021-03-24 22:24:35,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 144 events. 4/144 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 657 event pairs, 0 based on Foata normal form. 21/148 useless extension candidates. Maximal degree in co-relation 224. Up to 11 conditions per place. [2021-03-24 22:24:35,832 INFO L132 encePairwiseOnDemand]: 174/179 looper letters, 1 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2021-03-24 22:24:35,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 46 transitions, 193 flow [2021-03-24 22:24:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:24:35,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:24:35,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2021-03-24 22:24:35,834 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9441340782122905 [2021-03-24 22:24:35,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 507 transitions. [2021-03-24 22:24:35,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions. [2021-03-24 22:24:35,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:35,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions. [2021-03-24 22:24:35,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:35,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:35,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:35,837 INFO L185 Difference]: Start difference. First operand has 77 places, 59 transitions, 228 flow. Second operand 3 states and 507 transitions. [2021-03-24 22:24:35,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 46 transitions, 193 flow [2021-03-24 22:24:35,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 46 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:35,838 INFO L241 Difference]: Finished difference. Result has 78 places, 46 transitions, 190 flow [2021-03-24 22:24:35,841 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=78, PETRI_TRANSITIONS=46} [2021-03-24 22:24:35,841 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 10 predicate places. [2021-03-24 22:24:35,841 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 46 transitions, 190 flow [2021-03-24 22:24:35,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:35,841 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:35,841 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:35,842 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 22:24:35,842 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:35,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:35,842 INFO L82 PathProgramCache]: Analyzing trace with hash -223924269, now seen corresponding path program 2 times [2021-03-24 22:24:35,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:35,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095755317] [2021-03-24 22:24:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:35,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:35,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:35,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:35,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:24:35,913 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 22:24:35,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 22:24:35,928 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 22:24:35,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 22:24:35,951 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 22:24:35,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 22:24:35,986 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-24 22:24:35,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 22:24:36,027 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-24 22:24:36,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 22:24:36,084 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-24 22:24:36,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 22:24:36,154 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-24 22:24:36,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 22:24:36,242 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-24 22:24:36,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 22:24:36,349 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-24 22:24:36,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-24 22:24:36,506 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-03-24 22:24:36,512 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-24 22:24:36,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 22:24:36,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:36,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095755317] [2021-03-24 22:24:36,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:36,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 22:24:36,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950190062] [2021-03-24 22:24:36,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 22:24:36,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:36,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 22:24:36,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-24 22:24:36,575 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2021-03-24 22:24:36,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 46 transitions, 190 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:36,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:36,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2021-03-24 22:24:36,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:37,936 INFO L129 PetriNetUnfolder]: 13678/18048 cut-off events. [2021-03-24 22:24:37,936 INFO L130 PetriNetUnfolder]: For 17556/17645 co-relation queries the response was YES. [2021-03-24 22:24:38,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53449 conditions, 18048 events. 13678/18048 cut-off events. For 17556/17645 co-relation queries the response was YES. Maximal size of possible extension queue 1211. Compared 95112 event pairs, 4351 based on Foata normal form. 1/17659 useless extension candidates. Maximal degree in co-relation 53428. Up to 7434 conditions per place. [2021-03-24 22:24:38,173 INFO L132 encePairwiseOnDemand]: 167/179 looper letters, 74 selfloop transitions, 12 changer transitions 0/110 dead transitions. [2021-03-24 22:24:38,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 110 transitions, 618 flow [2021-03-24 22:24:38,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 22:24:38,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 22:24:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-03-24 22:24:38,178 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2021-03-24 22:24:38,178 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-03-24 22:24:38,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-03-24 22:24:38,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:38,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-03-24 22:24:38,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:38,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:38,187 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:38,188 INFO L185 Difference]: Start difference. First operand has 78 places, 46 transitions, 190 flow. Second operand 13 states and 2092 transitions. [2021-03-24 22:24:38,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 110 transitions, 618 flow [2021-03-24 22:24:38,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 110 transitions, 617 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:38,204 INFO L241 Difference]: Finished difference. Result has 100 places, 56 transitions, 297 flow [2021-03-24 22:24:38,205 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=297, PETRI_PLACES=100, PETRI_TRANSITIONS=56} [2021-03-24 22:24:38,205 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 32 predicate places. [2021-03-24 22:24:38,205 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 56 transitions, 297 flow [2021-03-24 22:24:38,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:38,206 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:38,206 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:38,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 22:24:38,206 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:38,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:38,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1600649307, now seen corresponding path program 3 times [2021-03-24 22:24:38,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:38,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261378094] [2021-03-24 22:24:38,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:38,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:38,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:38,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:38,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:24:38,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:38,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:24:38,315 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 22:24:38,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 22:24:38,330 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 22:24:38,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 22:24:38,351 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 22:24:38,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 22:24:38,377 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 22:24:38,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 22:24:38,409 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 22:24:38,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 22:24:38,451 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-24 22:24:38,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 22:24:38,501 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-24 22:24:38,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 22:24:38,567 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 22:24:38,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 22:24:38,650 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-24 22:24:38,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 22:24:38,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:38,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261378094] [2021-03-24 22:24:38,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:38,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 22:24:38,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232265271] [2021-03-24 22:24:38,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 22:24:38,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:38,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 22:24:38,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-24 22:24:38,713 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2021-03-24 22:24:38,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 56 transitions, 297 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:38,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:38,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2021-03-24 22:24:38,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:41,022 INFO L129 PetriNetUnfolder]: 19185/29925 cut-off events. [2021-03-24 22:24:41,022 INFO L130 PetriNetUnfolder]: For 78159/78347 co-relation queries the response was YES. [2021-03-24 22:24:41,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103344 conditions, 29925 events. 19185/29925 cut-off events. For 78159/78347 co-relation queries the response was YES. Maximal size of possible extension queue 2325. Compared 242386 event pairs, 5380 based on Foata normal form. 3/29468 useless extension candidates. Maximal degree in co-relation 103312. Up to 8988 conditions per place. [2021-03-24 22:24:41,494 INFO L132 encePairwiseOnDemand]: 167/179 looper letters, 114 selfloop transitions, 24 changer transitions 0/162 dead transitions. [2021-03-24 22:24:41,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 162 transitions, 1269 flow [2021-03-24 22:24:41,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 22:24:41,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 22:24:41,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-03-24 22:24:41,500 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2021-03-24 22:24:41,500 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-03-24 22:24:41,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-03-24 22:24:41,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:41,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-03-24 22:24:41,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:41,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:41,508 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:41,508 INFO L185 Difference]: Start difference. First operand has 100 places, 56 transitions, 297 flow. Second operand 13 states and 2092 transitions. [2021-03-24 22:24:41,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 162 transitions, 1269 flow [2021-03-24 22:24:41,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 162 transitions, 1225 flow, removed 13 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:41,792 INFO L241 Difference]: Finished difference. Result has 122 places, 73 transitions, 512 flow [2021-03-24 22:24:41,793 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=512, PETRI_PLACES=122, PETRI_TRANSITIONS=73} [2021-03-24 22:24:41,793 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 54 predicate places. [2021-03-24 22:24:41,793 INFO L480 AbstractCegarLoop]: Abstraction has has 122 places, 73 transitions, 512 flow [2021-03-24 22:24:41,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:41,794 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:41,794 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:41,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 22:24:41,794 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:41,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:41,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1110659359, now seen corresponding path program 4 times [2021-03-24 22:24:41,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:41,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699399667] [2021-03-24 22:24:41,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:41,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:41,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:41,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:41,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:24:41,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:41,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:24:41,852 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 22:24:41,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 22:24:41,867 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 22:24:41,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 22:24:41,887 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 22:24:41,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 22:24:41,914 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 22:24:41,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 22:24:41,945 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 22:24:41,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 22:24:41,992 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 22:24:41,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 22:24:42,049 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-24 22:24:42,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 22:24:42,100 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 22:24:42,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 22:24:42,172 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-24 22:24:42,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 22:24:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:42,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699399667] [2021-03-24 22:24:42,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:42,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 22:24:42,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571622355] [2021-03-24 22:24:42,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 22:24:42,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:42,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 22:24:42,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-24 22:24:42,229 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2021-03-24 22:24:42,238 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 73 transitions, 512 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:42,238 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:42,238 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2021-03-24 22:24:42,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:46,019 INFO L129 PetriNetUnfolder]: 25686/41825 cut-off events. [2021-03-24 22:24:46,020 INFO L130 PetriNetUnfolder]: For 211197/211581 co-relation queries the response was YES. [2021-03-24 22:24:46,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175961 conditions, 41825 events. 25686/41825 cut-off events. For 211197/211581 co-relation queries the response was YES. Maximal size of possible extension queue 3067. Compared 357446 event pairs, 7727 based on Foata normal form. 1/41341 useless extension candidates. Maximal degree in co-relation 175918. Up to 12426 conditions per place. [2021-03-24 22:24:46,887 INFO L132 encePairwiseOnDemand]: 167/179 looper letters, 165 selfloop transitions, 41 changer transitions 0/230 dead transitions. [2021-03-24 22:24:46,887 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 230 transitions, 2278 flow [2021-03-24 22:24:46,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 22:24:46,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 22:24:46,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-03-24 22:24:46,893 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2021-03-24 22:24:46,894 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-03-24 22:24:46,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-03-24 22:24:46,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:46,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-03-24 22:24:46,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:46,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:46,903 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:46,903 INFO L185 Difference]: Start difference. First operand has 122 places, 73 transitions, 512 flow. Second operand 13 states and 2092 transitions. [2021-03-24 22:24:46,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 230 transitions, 2278 flow [2021-03-24 22:24:48,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 230 transitions, 2203 flow, removed 26 selfloop flow, removed 1 redundant places. [2021-03-24 22:24:48,911 INFO L241 Difference]: Finished difference. Result has 144 places, 110 transitions, 1053 flow [2021-03-24 22:24:48,912 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1053, PETRI_PLACES=144, PETRI_TRANSITIONS=110} [2021-03-24 22:24:48,912 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 76 predicate places. [2021-03-24 22:24:48,912 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 110 transitions, 1053 flow [2021-03-24 22:24:48,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:48,913 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:24:48,913 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:24:48,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 22:24:48,913 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:24:48,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:24:48,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1093254067, now seen corresponding path program 5 times [2021-03-24 22:24:48,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:24:48,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200289946] [2021-03-24 22:24:48,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:24:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:24:48,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:48,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:24:48,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:48,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:24:48,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:24:48,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:24:48,976 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 22:24:48,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 22:24:48,988 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 22:24:48,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 22:24:49,005 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 22:24:49,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 22:24:49,028 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 22:24:49,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 22:24:49,056 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 22:24:49,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 22:24:49,091 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 22:24:49,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 22:24:49,138 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-24 22:24:49,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 22:24:49,194 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-24 22:24:49,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-24 22:24:49,261 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-24 22:24:49,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 22:24:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:24:49,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200289946] [2021-03-24 22:24:49,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:24:49,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 22:24:49,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055619197] [2021-03-24 22:24:49,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 22:24:49,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:24:49,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 22:24:49,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-24 22:24:49,322 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2021-03-24 22:24:49,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 110 transitions, 1053 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:49,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:24:49,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2021-03-24 22:24:49,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:24:58,378 INFO L129 PetriNetUnfolder]: 37876/65799 cut-off events. [2021-03-24 22:24:58,378 INFO L130 PetriNetUnfolder]: For 456959/459625 co-relation queries the response was YES. [2021-03-24 22:24:59,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304098 conditions, 65799 events. 37876/65799 cut-off events. For 456959/459625 co-relation queries the response was YES. Maximal size of possible extension queue 5583. Compared 660692 event pairs, 7610 based on Foata normal form. 3/65200 useless extension candidates. Maximal degree in co-relation 304044. Up to 19698 conditions per place. [2021-03-24 22:24:59,877 INFO L132 encePairwiseOnDemand]: 167/179 looper letters, 149 selfloop transitions, 72 changer transitions 0/245 dead transitions. [2021-03-24 22:24:59,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 245 transitions, 2939 flow [2021-03-24 22:24:59,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 22:24:59,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 22:24:59,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-03-24 22:24:59,881 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2021-03-24 22:24:59,881 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-03-24 22:24:59,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-03-24 22:24:59,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:24:59,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-03-24 22:24:59,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:59,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:59,890 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:24:59,890 INFO L185 Difference]: Start difference. First operand has 144 places, 110 transitions, 1053 flow. Second operand 13 states and 2092 transitions. [2021-03-24 22:24:59,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 245 transitions, 2939 flow [2021-03-24 22:25:01,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 245 transitions, 2897 flow, removed 14 selfloop flow, removed 1 redundant places. [2021-03-24 22:25:01,786 INFO L241 Difference]: Finished difference. Result has 166 places, 156 transitions, 1919 flow [2021-03-24 22:25:01,787 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1037, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1919, PETRI_PLACES=166, PETRI_TRANSITIONS=156} [2021-03-24 22:25:01,787 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 98 predicate places. [2021-03-24 22:25:01,787 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 156 transitions, 1919 flow [2021-03-24 22:25:01,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:25:01,788 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:01,788 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:25:01,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 22:25:01,788 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:25:01,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:01,788 INFO L82 PathProgramCache]: Analyzing trace with hash -623198385, now seen corresponding path program 6 times [2021-03-24 22:25:01,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:01,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288754629] [2021-03-24 22:25:01,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:01,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:01,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:01,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:01,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:25:01,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:01,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:25:01,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:01,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 22:25:01,854 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 22:25:01,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 22:25:01,871 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 22:25:01,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 22:25:01,894 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 22:25:01,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 22:25:01,923 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-24 22:25:01,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 22:25:01,961 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 22:25:01,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 22:25:02,002 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 22:25:02,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 22:25:02,061 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 22:25:02,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 22:25:02,128 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-24 22:25:02,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 22:25:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:25:02,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288754629] [2021-03-24 22:25:02,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:02,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 22:25:02,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182241690] [2021-03-24 22:25:02,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 22:25:02,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:02,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 22:25:02,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-24 22:25:02,189 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2021-03-24 22:25:02,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 156 transitions, 1919 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:25:02,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:02,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2021-03-24 22:25:02,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:17,594 INFO L129 PetriNetUnfolder]: 50351/89961 cut-off events. [2021-03-24 22:25:17,595 INFO L130 PetriNetUnfolder]: For 966341/972192 co-relation queries the response was YES. [2021-03-24 22:25:19,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 489148 conditions, 89961 events. 50351/89961 cut-off events. For 966341/972192 co-relation queries the response was YES. Maximal size of possible extension queue 7702. Compared 971533 event pairs, 14297 based on Foata normal form. 3/89038 useless extension candidates. Maximal degree in co-relation 489083. Up to 27447 conditions per place. [2021-03-24 22:25:19,826 INFO L132 encePairwiseOnDemand]: 167/179 looper letters, 329 selfloop transitions, 70 changer transitions 0/423 dead transitions. [2021-03-24 22:25:19,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 423 transitions, 6237 flow [2021-03-24 22:25:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 22:25:19,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 22:25:19,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-03-24 22:25:19,831 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2021-03-24 22:25:19,831 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-03-24 22:25:19,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-03-24 22:25:19,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:19,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-03-24 22:25:19,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:25:19,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:25:19,839 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:25:19,839 INFO L185 Difference]: Start difference. First operand has 166 places, 156 transitions, 1919 flow. Second operand 13 states and 2092 transitions. [2021-03-24 22:25:19,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 423 transitions, 6237 flow [2021-03-24 22:25:24,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 423 transitions, 6089 flow, removed 61 selfloop flow, removed 1 redundant places. [2021-03-24 22:25:24,718 INFO L241 Difference]: Finished difference. Result has 188 places, 204 transitions, 2878 flow [2021-03-24 22:25:24,718 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1867, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2878, PETRI_PLACES=188, PETRI_TRANSITIONS=204} [2021-03-24 22:25:24,718 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 120 predicate places. [2021-03-24 22:25:24,718 INFO L480 AbstractCegarLoop]: Abstraction has has 188 places, 204 transitions, 2878 flow [2021-03-24 22:25:24,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:25:24,719 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:24,719 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:25:24,719 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 22:25:24,719 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:25:24,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:24,720 INFO L82 PathProgramCache]: Analyzing trace with hash -919380479, now seen corresponding path program 7 times [2021-03-24 22:25:24,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:24,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856156419] [2021-03-24 22:25:24,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:24,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:24,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:24,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:24,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:25:24,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:24,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:25:24,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:24,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 22:25:24,797 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 22:25:24,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 22:25:24,816 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 22:25:24,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 22:25:24,839 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 22:25:24,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 22:25:24,867 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 22:25:24,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 22:25:24,905 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-24 22:25:24,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 22:25:24,952 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-24 22:25:24,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 22:25:25,044 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 22:25:25,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 22:25:25,116 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-24 22:25:25,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 22:25:25,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:25:25,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856156419] [2021-03-24 22:25:25,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:25,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 22:25:25,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848628301] [2021-03-24 22:25:25,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 22:25:25,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:25,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 22:25:25,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-24 22:25:25,175 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2021-03-24 22:25:25,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 204 transitions, 2878 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:25:25,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:25,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2021-03-24 22:25:25,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:51,525 INFO L129 PetriNetUnfolder]: 68312/130292 cut-off events. [2021-03-24 22:25:51,526 INFO L130 PetriNetUnfolder]: For 1873559/1887996 co-relation queries the response was YES. [2021-03-24 22:25:54,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 772445 conditions, 130292 events. 68312/130292 cut-off events. For 1873559/1887996 co-relation queries the response was YES. Maximal size of possible extension queue 11235. Compared 1580555 event pairs, 21637 based on Foata normal form. 3/128635 useless extension candidates. Maximal degree in co-relation 772369. Up to 38205 conditions per place. [2021-03-24 22:25:55,415 INFO L132 encePairwiseOnDemand]: 167/179 looper letters, 429 selfloop transitions, 104 changer transitions 0/557 dead transitions. [2021-03-24 22:25:55,415 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 557 transitions, 9359 flow [2021-03-24 22:25:55,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 22:25:55,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 22:25:55,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-03-24 22:25:55,419 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2021-03-24 22:25:55,419 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-03-24 22:25:55,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-03-24 22:25:55,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:55,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-03-24 22:25:55,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:25:55,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:25:55,432 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:25:55,432 INFO L185 Difference]: Start difference. First operand has 188 places, 204 transitions, 2878 flow. Second operand 13 states and 2092 transitions. [2021-03-24 22:25:55,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 557 transitions, 9359 flow [2021-03-24 22:26:17,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 557 transitions, 9095 flow, removed 114 selfloop flow, removed 1 redundant places. [2021-03-24 22:26:17,820 INFO L241 Difference]: Finished difference. Result has 210 places, 294 transitions, 4785 flow [2021-03-24 22:26:17,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=2761, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4785, PETRI_PLACES=210, PETRI_TRANSITIONS=294} [2021-03-24 22:26:17,820 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 142 predicate places. [2021-03-24 22:26:17,820 INFO L480 AbstractCegarLoop]: Abstraction has has 210 places, 294 transitions, 4785 flow [2021-03-24 22:26:17,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:26:17,821 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:26:17,821 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:26:17,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 22:26:17,821 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:26:17,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:26:17,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1417211775, now seen corresponding path program 8 times [2021-03-24 22:26:17,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:26:17,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644465072] [2021-03-24 22:26:17,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:26:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:26:17,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:26:17,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:26:17,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:26:17,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:26:17,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:26:17,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:26:17,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:26:17,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 22:26:17,880 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 22:26:17,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 22:26:17,897 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 22:26:17,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 22:26:17,920 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 22:26:17,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 22:26:17,951 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-24 22:26:17,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 22:26:17,989 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-24 22:26:17,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 22:26:18,059 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-24 22:26:18,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 22:26:18,125 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 22:26:18,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 22:26:18,189 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-24 22:26:18,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 22:26:18,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:26:18,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644465072] [2021-03-24 22:26:18,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:26:18,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 22:26:18,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517127864] [2021-03-24 22:26:18,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 22:26:18,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:26:18,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 22:26:18,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-24 22:26:18,243 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2021-03-24 22:26:18,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 294 transitions, 4785 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:26:18,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:26:18,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2021-03-24 22:26:18,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:26:58,673 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-03-24 22:27:11,172 INFO L129 PetriNetUnfolder]: 91604/183877 cut-off events. [2021-03-24 22:27:11,172 INFO L130 PetriNetUnfolder]: For 3275357/3307428 co-relation queries the response was YES. [2021-03-24 22:27:15,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1163481 conditions, 183877 events. 91604/183877 cut-off events. For 3275357/3307428 co-relation queries the response was YES. Maximal size of possible extension queue 15955. Compared 2432499 event pairs, 29649 based on Foata normal form. 3/180845 useless extension candidates. Maximal degree in co-relation 1163394. Up to 54563 conditions per place. [2021-03-24 22:27:16,688 INFO L132 encePairwiseOnDemand]: 167/179 looper letters, 375 selfloop transitions, 182 changer transitions 0/581 dead transitions. [2021-03-24 22:27:16,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 581 transitions, 10542 flow [2021-03-24 22:27:16,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 22:27:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 22:27:16,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-03-24 22:27:16,691 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2021-03-24 22:27:16,691 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-03-24 22:27:16,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-03-24 22:27:16,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:27:16,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-03-24 22:27:16,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:27:16,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:27:16,696 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:27:16,696 INFO L185 Difference]: Start difference. First operand has 210 places, 294 transitions, 4785 flow. Second operand 13 states and 2092 transitions. [2021-03-24 22:27:16,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 581 transitions, 10542 flow [2021-03-24 22:27:59,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 581 transitions, 10325 flow, removed 94 selfloop flow, removed 1 redundant places. [2021-03-24 22:27:59,970 INFO L241 Difference]: Finished difference. Result has 232 places, 394 transitions, 7304 flow [2021-03-24 22:27:59,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=4655, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7304, PETRI_PLACES=232, PETRI_TRANSITIONS=394} [2021-03-24 22:27:59,971 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 164 predicate places. [2021-03-24 22:27:59,971 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 394 transitions, 7304 flow [2021-03-24 22:27:59,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:27:59,971 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:27:59,971 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:27:59,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 22:27:59,972 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:27:59,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:27:59,972 INFO L82 PathProgramCache]: Analyzing trace with hash 446775507, now seen corresponding path program 9 times [2021-03-24 22:27:59,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:27:59,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58147692] [2021-03-24 22:27:59,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:27:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:28:00,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:28:00,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:28:00,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:28:00,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:28:00,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:28:00,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:28:00,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:28:00,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 22:28:00,046 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 22:28:00,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 22:28:00,064 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 22:28:00,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 22:28:00,085 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 22:28:00,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 22:28:00,111 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-24 22:28:00,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 22:28:00,163 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-24 22:28:00,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 22:28:00,217 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-24 22:28:00,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 22:28:00,285 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 22:28:00,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 22:28:00,345 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-24 22:28:00,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 22:28:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:28:00,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58147692] [2021-03-24 22:28:00,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:28:00,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 22:28:00,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834829017] [2021-03-24 22:28:00,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 22:28:00,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:28:00,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 22:28:00,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-24 22:28:00,390 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2021-03-24 22:28:00,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 394 transitions, 7304 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:28:00,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:28:00,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2021-03-24 22:28:00,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:29:50,230 INFO L129 PetriNetUnfolder]: 124454/274527 cut-off events. [2021-03-24 22:29:50,230 INFO L130 PetriNetUnfolder]: For 5795504/5879024 co-relation queries the response was YES. [2021-03-24 22:29:57,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1797188 conditions, 274527 events. 124454/274527 cut-off events. For 5795504/5879024 co-relation queries the response was YES. Maximal size of possible extension queue 24369. Compared 4130603 event pairs, 42960 based on Foata normal form. 5/268347 useless extension candidates. Maximal degree in co-relation 1797090. Up to 76851 conditions per place. [2021-03-24 22:29:58,813 INFO L132 encePairwiseOnDemand]: 167/179 looper letters, 578 selfloop transitions, 232 changer transitions 0/834 dead transitions. [2021-03-24 22:29:58,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 834 transitions, 17602 flow [2021-03-24 22:29:58,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 22:29:58,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 22:29:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-03-24 22:29:58,816 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2021-03-24 22:29:58,816 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-03-24 22:29:58,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-03-24 22:29:58,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:29:58,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-03-24 22:29:58,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:29:58,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:29:58,821 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:29:58,821 INFO L185 Difference]: Start difference. First operand has 232 places, 394 transitions, 7304 flow. Second operand 13 states and 2092 transitions. [2021-03-24 22:29:58,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 834 transitions, 17602 flow [2021-03-24 22:32:09,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 834 transitions, 17243 flow, removed 141 selfloop flow, removed 1 redundant places. [2021-03-24 22:32:09,458 INFO L241 Difference]: Finished difference. Result has 254 places, 583 transitions, 12376 flow [2021-03-24 22:32:09,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=7083, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=12376, PETRI_PLACES=254, PETRI_TRANSITIONS=583} [2021-03-24 22:32:09,458 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 186 predicate places. [2021-03-24 22:32:09,458 INFO L480 AbstractCegarLoop]: Abstraction has has 254 places, 583 transitions, 12376 flow [2021-03-24 22:32:09,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:32:09,458 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:32:09,459 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 22:32:09,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-24 22:32:09,459 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-24 22:32:09,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:32:09,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1784161341, now seen corresponding path program 10 times [2021-03-24 22:32:09,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:32:09,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986012135] [2021-03-24 22:32:09,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:32:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:32:09,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:32:09,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:32:09,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:32:09,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:32:09,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:32:09,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:32:09,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:32:09,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 22:32:09,513 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 22:32:09,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 22:32:09,533 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 22:32:09,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 22:32:09,556 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-24 22:32:09,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 22:32:09,608 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-24 22:32:09,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 22:32:09,659 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-24 22:32:09,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 22:32:09,711 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-24 22:32:09,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 22:32:09,774 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 22:32:09,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 22:32:09,821 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-03-24 22:32:09,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 22:32:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:32:09,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986012135] [2021-03-24 22:32:09,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:32:09,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 22:32:09,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833173642] [2021-03-24 22:32:09,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 22:32:09,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:32:09,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 22:32:09,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-03-24 22:32:09,868 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2021-03-24 22:32:09,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 583 transitions, 12376 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 22:32:09,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:32:09,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2021-03-24 22:32:09,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand